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#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.57.
#
# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
# Free Software Foundation, Inc.
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## --------------------- ##
## M4sh Initialization.  ##
## --------------------- ##

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
  set -o posix
fi

# Support unset when possible.
if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
  as_unset=unset
else
  as_unset=false
fi

# Work around bugs in pre-3.0 UWIN ksh.
$as_unset ENV MAIL MAILPATH
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
for as_var in \
  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
  LC_TELEPHONE LC_TIME
do
  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
    eval $as_var=C; export $as_var
  else
    $as_unset $as_var
  fi
done

# Required to use basename.
if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

# Name of the executable.
as_me=`$as_basename "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)$' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
  	  /^X\/\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`

# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  echo "#! /bin/sh" >conf$$.sh
  echo  "exit 0"   >>conf$$.sh
  chmod +x conf$$.sh
  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
    PATH_SEPARATOR=';'
  else
    PATH_SEPARATOR=:
  fi
  rm -f conf$$.sh
fi

  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
  # Find who we are.  Look in the path if we contain no path at all
  # relative or not.
  case $0 in
    *[\\/]* ) as_myself=$0 ;;
    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
done
       ;;
  esac
  # We did not find ourselves, most probably we were run as `sh COMMAND'
  # in which case we are not to be found in the path.
  if test "x$as_myself" = x; then
    as_myself=$0
  fi
  if test ! -f "$as_myself"; then
    { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
   { (exit 1); exit 1; }; }
  fi
  case $CONFIG_SHELL in
  '')
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for as_base in sh bash ksh sh5; do
	 case $as_dir in
	 /*)
	   if ("$as_dir/$as_base" -c '
  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
	     CONFIG_SHELL=$as_dir/$as_base
	     export CONFIG_SHELL
	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
	   fi;;
	 esac
       done
done
;;
  esac

  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
  # uniformly replaced by the line number.  The first 'sed' inserts a
  # line-number line before each line; the second 'sed' does the real
  # work.  The second script uses 'N' to pair each line-number line
  # with the numbered line, and appends trailing '-' during
  # substitution so that $LINENO is not a special case at line end.
  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
  sed '=' <$as_myself |
    sed '
      N
      s,$,-,
      : loop
      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
      t loop
      s,-$,,
      s,^['$as_cr_digits']*\n,,
    ' >$as_me.lineno &&
  chmod +x $as_me.lineno ||
    { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
   { (exit 1); exit 1; }; }

  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensible to this).
  . ./$as_me.lineno
  # Exit status is that of the last command.
  exit
}

case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
  *c*,-n*) ECHO_N= ECHO_C='
' ECHO_T='	' ;;
  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac

if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
  # We could just check for DJGPP; but this test a) works b) is more generic
  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
  if test -f conf$$.exe; then
    # Don't use ln at all; we don't have any links
    as_ln_s='cp -p'
  else
    as_ln_s='ln -s'
  fi
elif ln conf$$.file conf$$ 2>/dev/null; then
  as_ln_s=ln
else
  as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.file

if mkdir -p . 2>/dev/null; then
  as_mkdir_p=:
else
  as_mkdir_p=false
fi

as_executable_p="test -f"

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"

# IFS
# We need space, tab and new line, in precisely that order.
as_nl='
'
IFS=" 	$as_nl"

# CDPATH.
$as_unset CDPATH

# Name of the host.
# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`

exec 6>&1

#
# Initializations.
#
ac_default_prefix=/usr/local
ac_config_libobj_dir=.
cross_compiling=no
subdirs=
MFLAGS=
MAKEFLAGS=
SHELL=${CONFIG_SHELL-/bin/sh}

# Maximum number of lines to put in a shell here document.
# This variable seems obsolete.  It should probably be removed, and
# only ac_max_sed_lines should be used.
: ${ac_max_here_lines=38}

# Identity of this package.
PACKAGE_NAME=
PACKAGE_TARNAME=
PACKAGE_VERSION=
PACKAGE_STRING=
PACKAGE_BUGREPORT=

# Factoring default headers for most tests.
ac_includes_default="\
#include <stdio.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# if HAVE_STDLIB_H
#  include <stdlib.h>
# endif
#endif
#if HAVE_STRING_H
# if !STDC_HEADERS && HAVE_MEMORY_H
#  include <memory.h>
# endif
# include <string.h>
#endif
#if HAVE_STRINGS_H
# include <strings.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#else
# if HAVE_STDINT_H
#  include <stdint.h>
# endif
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif"

ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CXX CXXFLAGS ac_ct_CXX CXXCPP EGREP VCL_USE_NATIVE_STL VCL_USE_NATIVE_COMPLEX VCL_USE_IMPLICIT_TEMPLATES VNL_CONFIG_CHECK_BOUNDS VNL_CONFIG_LEGACY_METHODS VNL_CONFIG_THREAD_SAFE VCL_HAS_BOOL VCL_HAS_DYNAMIC_CAST VCL_HAS_RTTI VCL_HAS_TYPENAME VCL_HAS_EXPORT VCL_HAS_MUTABLE VCL_HAS_EXPLICIT VCL_STATIC_CONST_INIT_INT VCL_STATIC_CONST_INIT_NO_DEFN VCL_STATIC_CONST_INIT_FLOAT VCL_FOR_SCOPE_HACK VCL_HAS_MEMBER_TEMPLATES VCL_CAN_DO_PARTIAL_SPECIALIZATION VCL_ALLOWS_INLINE_INSTANTIATION VCL_NEEDS_INLINE_INSTANTIATION VCL_CAN_DO_STATIC_TEMPLATE_MEMBER VCL_CAN_DO_NON_TYPE_FUNCTION_TEMPLATE_PARAMETER VCL_NEED_FRIEND_FOR_TEMPLATE_OVERLOAD VCL_OVERLOAD_CAST VCL_DEFINE_SPECIALIZATION VCL_CANNOT_SPECIALIZE_CV VCL_NULL_TMPL_ARGS VCL_COMPLEX_POW_WORKS VCL_DEFAULT_VALUE VCL_NO_STATIC_DATA_MEMBERS VCL_HAS_TEMPLATE_SYMBOLS VCL_TEMPLATE_MATCHES_TOO_OFTEN VCL_HAS_SLICED_DESTRUCTOR_BUG VCL_CHAR_IS_SIGNED VCL_NUMERIC_LIMITS_HAS_INFINITY VCL_PROCESSOR_HAS_INFINITY VCL_DEFAULT_TMPL_ARG VCL_CAN_DO_COMPLETE_DEFAULT_TYPE_PARAMETER VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER VCL_SUNPRO_CLASS_SCOPE_HACK VCL_HAS_EXCEPTIONS VCL_HAS_NAMESPACES VCL_ALLOWS_NAMESPACE_STD VCL_NEEDS_NAMESPACE_STD VCL_BIG_ENDIAN VCL_LITTLE_ENDIAN VCL_CXX_HAS_HEADER_CASSERT VCL_CXX_HAS_HEADER_CISO646 VCL_CXX_HAS_HEADER_CSETJMP VCL_CXX_HAS_HEADER_CSTDIO VCL_CXX_HAS_HEADER_CTIME VCL_CXX_HAS_HEADER_CCTYPE VCL_CXX_HAS_HEADER_CLIMITS VCL_CXX_HAS_HEADER_CSIGNAL VCL_CXX_HAS_HEADER_CSTDLIB VCL_CXX_HAS_HEADER_CWCHAR VCL_CXX_HAS_HEADER_CERRNO VCL_CXX_HAS_HEADER_CLOCALE VCL_CXX_HAS_HEADER_CSTDARG VCL_CXX_HAS_HEADER_CSTRING VCL_CXX_HAS_HEADER_CWCTYPE VCL_CXX_HAS_HEADER_CFLOAT VCL_CXX_HAS_HEADER_CMATH VCL_CXX_HAS_HEADER_CSTDDEF VCL_CXX_HAS_HEADER_ALGORITHM VCL_CXX_HAS_HEADER_IOMANIP VCL_CXX_HAS_HEADER_LIST VCL_CXX_HAS_HEADER_OSTREAM VCL_CXX_HAS_HEADER_STREAMBUF VCL_CXX_HAS_HEADER_BITSET VCL_CXX_HAS_HEADER_IOS VCL_CXX_HAS_HEADER_LOCALE VCL_CXX_HAS_HEADER_QUEUE VCL_CXX_HAS_HEADER_STRING VCL_CXX_HAS_HEADER_COMPLEX VCL_CXX_HAS_HEADER_IOSFWD VCL_CXX_HAS_HEADER_MAP VCL_CXX_HAS_HEADER_SET VCL_CXX_HAS_HEADER_TYPEINFO VCL_CXX_HAS_HEADER_DEQUE VCL_CXX_HAS_HEADER_IOSTREAM VCL_CXX_HAS_HEADER_MEMORY VCL_CXX_HAS_HEADER_SSTREAM VCL_CXX_HAS_HEADER_UTILITY VCL_CXX_HAS_HEADER_EXCEPTION VCL_CXX_HAS_HEADER_ISTREAM VCL_CXX_HAS_HEADER_NEW VCL_CXX_HAS_HEADER_STACK VCL_CXX_HAS_HEADER_VALARRAY VCL_CXX_HAS_HEADER_FSTREAM VCL_CXX_HAS_HEADER_ITERATOR VCL_CXX_HAS_HEADER_NUMERIC VCL_CXX_HAS_HEADER_STDEXCEPT VCL_CXX_HAS_HEADER_VECTOR VCL_CXX_HAS_HEADER_FUNCTIONAL VCL_CXX_HAS_HEADER_LIMITS VCL_CXX_HAS_HEADER_STRSTREAM VXL_HAS_PTHREAD_H VXL_HAS_SEMAPHORE_H VXL_HAS_IEEEFP_H VCL_CXX_HAS_HEADER_ISO646_H VXL_UNISTD_HAS_USECONDS_T VXL_UNISTD_HAS_INTPTR_T VXL_UNISTD_HAS_UALARM VXL_UNISTD_HAS_USLEEP VXL_UNISTD_HAS_LCHOWN VXL_UNISTD_HAS_PREAD VXL_UNISTD_HAS_PWRITE VXL_UNISTD_HAS_TELL VXL_STDLIB_HAS_QSORT VXL_STDLIB_HAS_LRAND48 VXL_STDLIB_HAS_DRAND48 VXL_STDLIB_HAS_SRAND48 VXL_IEEEFP_HAS_FINITE VXL_C_MATH_HAS_FINITEF VXL_C_MATH_HAS_FINITE VXL_C_MATH_HAS_FINITEL VXL_C_MATH_HAS_SQRTF VXL_UNISTD_USLEEP_IS_VOID VXL_TWO_ARG_GETTIME VXL_BIG_ENDIAN VXL_LITTLE_ENDIAN VXL_HAS_BYTE VXL_HAS_INT_8 VXL_HAS_INT_16 VXL_HAS_INT_32 VXL_HAS_INT_64 VXL_HAS_IEEE_32 VXL_HAS_IEEE_64 VXL_HAS_IEEE_96 VXL_HAS_IEEE_128 VXL_BYTE VXL_INT_8 VXL_INT_16 VXL_INT_32 VXL_INT_64 VXL_INT_64_IS_LONG VXL_IEEE_32 VXL_IEEE_64 VXL_IEEE_96 VXL_IEEE_128 LIBOBJS LTLIBOBJS'
ac_subst_files=''

# Initialize some variables set by options.
ac_init_help=
ac_init_version=false
# The variables have the same names as the options, with
# dashes changed to underlines.
cache_file=/dev/null
exec_prefix=NONE
no_create=
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
verbose=
x_includes=NONE
x_libraries=NONE

# Installation directory options.
# These are left unexpanded so users can "make install exec_prefix=/foo"
# and all the variables that are supposed to be based on exec_prefix
# by default will actually change.
# Use braces instead of parens because sh, perl, etc. also accept them.
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datadir='${prefix}/share'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
libdir='${exec_prefix}/lib'
includedir='${prefix}/include'
oldincludedir='/usr/include'
infodir='${prefix}/info'
mandir='${prefix}/man'

ac_prev=
for ac_option
do
  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval "$ac_prev=\$ac_option"
    ac_prev=
    continue
  fi

  ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`

  # Accept the important Cygnus configure options, so we can diagnose typos.

  case $ac_option in

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir=$ac_optarg ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build_alias ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build_alias=$ac_optarg ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file=$ac_optarg ;;

  --config-cache | -C)
    cache_file=config.cache ;;

  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
  | --da=*)
    datadir=$ac_optarg ;;

  -disable-* | --disable-*)
    ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
   { (exit 1); exit 1; }; }
    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
    eval "enable_$ac_feature=no" ;;

  -enable-* | --enable-*)
    ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid feature name: $ac_feature" >&2
   { (exit 1); exit 1; }; }
    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
    case $ac_option in
      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
      *) ac_optarg=yes ;;
    esac
    eval "enable_$ac_feature='$ac_optarg'" ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix=$ac_optarg ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he | -h)
    ac_init_help=long ;;
  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
    ac_init_help=recursive ;;
  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
    ac_init_help=short ;;

  -host | --host | --hos | --ho)
    ac_prev=host_alias ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host_alias=$ac_optarg ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir=$ac_optarg ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir=$ac_optarg ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir=$ac_optarg ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
  | --libexe=* | --libex=* | --libe=*)
    libexecdir=$ac_optarg ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
  | --localstate | --localstat | --localsta | --localst \
  | --locals | --local | --loca | --loc | --lo)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
    localstatedir=$ac_optarg ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir=$ac_optarg ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c | -n)
    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
    no_recursion=yes ;;

  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
  | --oldin | --oldi | --old | --ol | --o)
    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
    oldincludedir=$ac_optarg ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix=$ac_optarg ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
  | --program-pre | --program-pr | --program-p)
    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix=$ac_optarg ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix=$ac_optarg ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \
  | --program-transfo | --program-transf \
  | --program-trans | --program-tran \
  | --progr-tra | --program-tr | --program-t)
    ac_prev=program_transform_name ;;
  -program-transform-name=* | --program-transform-name=* \
  | --program-transform-nam=* | --program-transform-na=* \
  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name=$ac_optarg ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir=$ac_optarg ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
  | --sha=* | --sh=*)
    sharedstatedir=$ac_optarg ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site=$ac_optarg ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir=$ac_optarg ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir=$ac_optarg ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target_alias ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target_alias=$ac_optarg ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers | -V)
    ac_init_version=: ;;

  -with-* | --with-*)
    ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid package name: $ac_package" >&2
   { (exit 1); exit 1; }; }
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    case $ac_option in
      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
      *) ac_optarg=yes ;;
    esac
    eval "with_$ac_package='$ac_optarg'" ;;

  -without-* | --without-*)
    ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid package name: $ac_package" >&2
   { (exit 1); exit 1; }; }
    ac_package=`echo $ac_package | sed 's/-/_/g'`
    eval "with_$ac_package=no" ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes=$ac_optarg ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries=$ac_optarg ;;

  -*) { echo "$as_me: error: unrecognized option: $ac_option
Try \`$0 --help' for more information." >&2
   { (exit 1); exit 1; }; }
    ;;

  *=*)
    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
    # Reject names that are not valid shell variable names.
    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
      { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
   { (exit 1); exit 1; }; }
    ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
    eval "$ac_envvar='$ac_optarg'"
    export $ac_envvar ;;

  *)
    # FIXME: should be removed in autoconf 3.0.
    echo "$as_me: WARNING: you should use --build, --host, --target" >&2
    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
      echo "$as_me: WARNING: invalid host type: $ac_option" >&2
    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
    ;;

  esac
done

if test -n "$ac_prev"; then
  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
  { echo "$as_me: error: missing argument to $ac_option" >&2
   { (exit 1); exit 1; }; }
fi

# Be sure to have absolute paths.
for ac_var in exec_prefix prefix
do
  eval ac_val=$`echo $ac_var`
  case $ac_val in
    [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
   { (exit 1); exit 1; }; };;
  esac
done

# Be sure to have absolute paths.
for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
              localstatedir libdir includedir oldincludedir infodir mandir
do
  eval ac_val=$`echo $ac_var`
  case $ac_val in
    [\\/$]* | ?:[\\/]* ) ;;
    *)  { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
   { (exit 1); exit 1; }; };;
  esac
done

# There might be people who depend on the old broken behavior: `$host'
# used to hold the argument of --host etc.
# FIXME: To remove some day.
build=$build_alias
host=$host_alias
target=$target_alias

# FIXME: To remove some day.
if test "x$host_alias" != x; then
  if test "x$build_alias" = x; then
    cross_compiling=maybe
    echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
    If a cross compiler is detected then cross compile mode will be used." >&2
  elif test "x$build_alias" != "x$host_alias"; then
    cross_compiling=yes
  fi
fi

ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-

test "$silent" = yes && exec 6>/dev/null

# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then its parent.
  ac_confdir=`(dirname "$0") 2>/dev/null ||
$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
         X"$0" : 'X\(//\)[^/]' \| \
         X"$0" : 'X\(//\)$' \| \
         X"$0" : 'X\(/\)' \| \
         .     : '\(.\)' 2>/dev/null ||
echo X"$0" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  srcdir=$ac_confdir
  if test ! -r $srcdir/$ac_unique_file; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r $srcdir/$ac_unique_file; then
  if test "$ac_srcdir_defaulted" = yes; then
    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
   { (exit 1); exit 1; }; }
  else
    { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
   { (exit 1); exit 1; }; }
  fi
fi
(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
  { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
   { (exit 1); exit 1; }; }
srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
ac_env_build_alias_set=${build_alias+set}
ac_env_build_alias_value=$build_alias
ac_cv_env_build_alias_set=${build_alias+set}
ac_cv_env_build_alias_value=$build_alias
ac_env_host_alias_set=${host_alias+set}
ac_env_host_alias_value=$host_alias
ac_cv_env_host_alias_set=${host_alias+set}
ac_cv_env_host_alias_value=$host_alias
ac_env_target_alias_set=${target_alias+set}
ac_env_target_alias_value=$target_alias
ac_cv_env_target_alias_set=${target_alias+set}
ac_cv_env_target_alias_value=$target_alias
ac_env_CC_set=${CC+set}
ac_env_CC_value=$CC
ac_cv_env_CC_set=${CC+set}
ac_cv_env_CC_value=$CC
ac_env_CFLAGS_set=${CFLAGS+set}
ac_env_CFLAGS_value=$CFLAGS
ac_cv_env_CFLAGS_set=${CFLAGS+set}
ac_cv_env_CFLAGS_value=$CFLAGS
ac_env_LDFLAGS_set=${LDFLAGS+set}
ac_env_LDFLAGS_value=$LDFLAGS
ac_cv_env_LDFLAGS_set=${LDFLAGS+set}
ac_cv_env_LDFLAGS_value=$LDFLAGS
ac_env_CPPFLAGS_set=${CPPFLAGS+set}
ac_env_CPPFLAGS_value=$CPPFLAGS
ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
ac_cv_env_CPPFLAGS_value=$CPPFLAGS
ac_env_CXX_set=${CXX+set}
ac_env_CXX_value=$CXX
ac_cv_env_CXX_set=${CXX+set}
ac_cv_env_CXX_value=$CXX
ac_env_CXXFLAGS_set=${CXXFLAGS+set}
ac_env_CXXFLAGS_value=$CXXFLAGS
ac_cv_env_CXXFLAGS_set=${CXXFLAGS+set}
ac_cv_env_CXXFLAGS_value=$CXXFLAGS
ac_env_CXXCPP_set=${CXXCPP+set}
ac_env_CXXCPP_value=$CXXCPP
ac_cv_env_CXXCPP_set=${CXXCPP+set}
ac_cv_env_CXXCPP_value=$CXXCPP
ac_env_CPP_set=${CPP+set}
ac_env_CPP_value=$CPP
ac_cv_env_CPP_set=${CPP+set}
ac_cv_env_CPP_value=$CPP

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures this package to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print \`checking...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for \`--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or \`..']

_ACEOF

  cat <<_ACEOF
Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, \`make install' will install all the files in
\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
an installation prefix other than \`$ac_default_prefix' using \`--prefix',
for instance \`--prefix=\$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR           user executables [EPREFIX/bin]
  --sbindir=DIR          system admin executables [EPREFIX/sbin]
  --libexecdir=DIR       program executables [EPREFIX/libexec]
  --datadir=DIR          read-only architecture-independent data [PREFIX/share]
  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
  --libdir=DIR           object code libraries [EPREFIX/lib]
  --includedir=DIR       C header files [PREFIX/include]
  --oldincludedir=DIR    C header files for non-gcc [/usr/include]
  --infodir=DIR          info documentation [PREFIX/info]
  --mandir=DIR           man documentation [PREFIX/man]
_ACEOF

  cat <<\_ACEOF
_ACEOF
fi

if test -n "$ac_init_help"; then

  cat <<\_ACEOF

Optional Features:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-emulation-stl  use the STL that comes with vcl
  --enable-emulation-complex  use the complex<> that comes with vcl

  --enable-implicit-templates        enable implicit template instantiation (default)
  --disable-implicit-templates       disable implicit template instantiation


  --enable-vnl_bounds_checking   enable bound checks in the vnl  and () operators (default)
  --disable-vnl_bounds_checking  disable bound checks in the vnl  and () operators

  --enable-vnl_legacy_methods   enable bound checks in the vnl  and () operators (default)
  --disable-vnl_legacy_methods  disable bound checks in the vnl  and () operators

  --enable-vnl_thread_safe   enable bound checks in the vnl  and () operators (default)
  --disable-vnl_thread_safe  disable bound checks in the vnl  and () operators

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  CPPFLAGS    C/C++ preprocessor flags, e.g. -I<include dir> if you have
              headers in a nonstandard directory <include dir>
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  CXXCPP      C++ preprocessor
  CPP         C preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

_ACEOF
fi

if test "$ac_init_help" = "recursive"; then
  # If there are subdirs, report their specific --help.
  ac_popdir=`pwd`
  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
    test -d $ac_dir || continue
    ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac
# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
# absolute.
ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`

    cd $ac_dir
    # Check for guested configure; otherwise get Cygnus style configure.
    if test -f $ac_srcdir/configure.gnu; then
      echo
      $SHELL $ac_srcdir/configure.gnu  --help=recursive
    elif test -f $ac_srcdir/configure; then
      echo
      $SHELL $ac_srcdir/configure  --help=recursive
    elif test -f $ac_srcdir/configure.ac ||
           test -f $ac_srcdir/configure.in; then
      echo
      $ac_configure --help
    else
      echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi
    cd $ac_popdir
  done
fi

test -n "$ac_init_help" && exit 0
if $ac_init_version; then
  cat <<\_ACEOF

Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit 0
fi
exec 5>config.log
cat >&5 <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by $as_me, which was
generated by GNU Autoconf 2.57.  Invocation command line was

  $ $0 $@

_ACEOF
{
cat <<_ASUNAME
## --------- ##
## Platform. ##
## --------- ##

hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`

/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
hostinfo               = `(hostinfo) 2>/dev/null               || echo unknown`
/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`

_ASUNAME

as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  echo "PATH: $as_dir"
done

} >&5

cat >&5 <<_ACEOF

## ----------- ##
## Core tests. ##
## ----------- ##

_ACEOF

# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
# Strip out --silent because we don't want to record it for future runs.
# Also quote any args containing shell meta-characters.
# Make two passes to allow for proper duplicate-argument suppression.
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
ac_sep=
ac_must_keep_next=false
for ac_pass in 1 2
do
  for ac_arg
  do
    case $ac_arg in
    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
      ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
    2)
      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
      if test $ac_must_keep_next = true; then
        ac_must_keep_next=false # Got value, back to normal.
      else
        case $ac_arg in
          *=* | --config-cache | -C | -disable-* | --disable-* \
          | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
          | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
          | -with-* | --with-* | -without-* | --without-* | --x)
            case "$ac_configure_args0 " in
              "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
            esac
            ;;
          -* ) ac_must_keep_next=true ;;
        esac
      fi
      ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
      # Get rid of the leading space.
      ac_sep=" "
      ;;
    esac
  done
done
$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }

# When interrupted or exit'd, cleanup temporary files, and complete
# config.log.  We remove comments because anyway the quotes in there
# would cause problems or look ugly.
# WARNING: Be sure not to use single quotes in there, as some shells,
# such as our DU 5.0 friend, will then `close' the trap.
trap 'exit_status=$?
  # Save into config.log some information that might help in debugging.
  {
    echo

    cat <<\_ASBOX
## ---------------- ##
## Cache variables. ##
## ---------------- ##
_ASBOX
    echo
    # The following way of writing the cache mishandles newlines in values,
{
  (set) 2>&1 |
    case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
    *ac_space=\ *)
      sed -n \
        "s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
    	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
      ;;
    *)
      sed -n \
        "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
      ;;
    esac;
}
    echo

    cat <<\_ASBOX
## ----------------- ##
## Output variables. ##
## ----------------- ##
_ASBOX
    echo
    for ac_var in $ac_subst_vars
    do
      eval ac_val=$`echo $ac_var`
      echo "$ac_var='"'"'$ac_val'"'"'"
    done | sort
    echo

    if test -n "$ac_subst_files"; then
      cat <<\_ASBOX
## ------------- ##
## Output files. ##
## ------------- ##
_ASBOX
      echo
      for ac_var in $ac_subst_files
      do
	eval ac_val=$`echo $ac_var`
        echo "$ac_var='"'"'$ac_val'"'"'"
      done | sort
      echo
    fi

    if test -s confdefs.h; then
      cat <<\_ASBOX
## ----------- ##
## confdefs.h. ##
## ----------- ##
_ASBOX
      echo
      sed "/^$/d" confdefs.h | sort
      echo
    fi
    test "$ac_signal" != 0 &&
      echo "$as_me: caught signal $ac_signal"
    echo "$as_me: exit $exit_status"
  } >&5
  rm -f core.* *.core &&
  rm -rf conftest* confdefs* conf$$* $ac_clean_files &&
    exit $exit_status
     ' 0
for ac_signal in 1 2 13 15; do
  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
done
ac_signal=0

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -rf conftest* confdefs.h
# AIX cpp loses on an empty file, so make sure it contains at least a newline.
echo >confdefs.h

# Predefined preprocessor variables.

cat >>confdefs.h <<_ACEOF
#define PACKAGE_NAME "$PACKAGE_NAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_VERSION "$PACKAGE_VERSION"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_STRING "$PACKAGE_STRING"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
_ACEOF

# Let the site file select an alternate cache file if it wants to.
# Prefer explicitly selected file to automatically selected ones.
if test -z "$CONFIG_SITE"; then
  if test "x$prefix" != xNONE; then
    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
  else
    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
  fi
fi
for ac_site_file in $CONFIG_SITE; do
  if test -r "$ac_site_file"; then
    { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
echo "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file"
  fi
done

if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special
  # files actually), so we avoid doing that.
  if test -f "$cache_file"; then
    { echo "$as_me:$LINENO: loading cache $cache_file" >&5
echo "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . $cache_file;;
      *)                      . ./$cache_file;;
    esac
  fi
else
  { echo "$as_me:$LINENO: creating cache $cache_file" >&5
echo "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
fi

# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
for ac_var in `(set) 2>&1 |
               sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val="\$ac_cv_env_${ac_var}_value"
  eval ac_new_val="\$ac_env_${ac_var}_value"
  case $ac_old_set,$ac_new_set in
    set,)
      { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
      { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
        { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
        { echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
echo "$as_me:   former value:  $ac_old_val" >&2;}
        { echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
echo "$as_me:   current value: $ac_new_val" >&2;}
        ac_cache_corrupted=:
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
    esac
  fi
done
if $ac_cache_corrupted; then
  { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
echo "$as_me: error: changes in the environment can compromise the build" >&2;}
  { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

# blurb
echo "vcl configure: CC=$CC"
echo "vcl configure: CCFLAGS=$CCFLAGS"
echo "vcl configure: CXX=$CXX"
echo "vcl configure: CXXFLAGS=$CXXFLAGS"
echo "vcl configure: TXXFLAGS=$TXXFLAGS"

## we need to use the scripts in ./shell
#no_we_dont AC_CONFIG_AUX_DIR(shell)

#--------------------------------------------------------------------------------
# COMPILERS

# check the C compiler
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  CC=$ac_ct_CC
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  CC=$ac_ct_CC
else
  CC="$ac_cv_prog_CC"
fi

fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  echo "$as_me:$LINENO: result: $CC" >&5
echo "${ECHO_T}$CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
echo "${ECHO_T}$ac_ct_CC" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  test -n "$ac_ct_CC" && break
done
  CC=$ac_ct_CC
fi
fi

test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
See \`config.log' for more details." >&5
echo "$as_me: error: no acceptable C compiler found in \$PATH
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }

# Provide some information about the compiler.
echo "$as_me:$LINENO:" \
     "checking for C compiler version" >&5
ac_compiler=`set X $ac_compile; echo $2`
{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
  (eval $ac_compiler --version </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
  (eval $ac_compiler -v </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
  (eval $ac_compiler -V </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() { return 0; }
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
# It will help us diagnose broken compilers, and finding out an intuition
# of exeext.
echo "$as_me:$LINENO: checking for C compiler default output" >&5
echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6
ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
  (eval $ac_link_default) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  # Find the output, starting from the most likely.  This scheme is
# not robust to junk in `.', hence go to wildcards (a.*) only as a last
# resort.

# Be careful to initialize this variable, since it used to be cached.
# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
ac_cv_exeext=
# b.out is created by i960 compilers.
for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out
do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj )
        ;;
    conftest.$ac_ext )
        # This is the source file.
        ;;
    [ab].out )
        # We found the default executable, but exeext='' is most
        # certainly right.
        break;;
    *.* )
        ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
        # FIXME: I believe we export ac_cv_exeext for Libtool,
        # but it would be cool to find out if it's true.  Does anybody
        # maintain Libtool? --akim.
        export ac_cv_exeext
        break;;
    * )
        break;;
  esac
done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ { echo "$as_me:$LINENO: error: C compiler cannot create executables
See \`config.log' for more details." >&5
echo "$as_me: error: C compiler cannot create executables
See \`config.log' for more details." >&2;}
   { (exit 77); exit 77; }; }
fi

ac_exeext=$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_file" >&5
echo "${ECHO_T}$ac_file" >&6

# Check the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether the C compiler works" >&5
echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6
# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
# If not cross compiling, check that we can run a simple program.
if test "$cross_compiling" != yes; then
  if { ac_try='./$ac_file'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
    cross_compiling=no
  else
    if test "$cross_compiling" = maybe; then
	cross_compiling=yes
    else
	{ { echo "$as_me:$LINENO: error: cannot run C compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run C compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
    fi
  fi
fi
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6

rm -f a.out a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
# Check the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
echo "$as_me:$LINENO: result: $cross_compiling" >&5
echo "${ECHO_T}$cross_compiling" >&6

echo "$as_me:$LINENO: checking for suffix of executables" >&5
echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  # If both `conftest.exe' and `conftest' are `present' (well, observable)
# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
# `rm'.
for ac_file in conftest.exe conftest conftest.*; do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
          export ac_cv_exeext
          break;;
    * ) break;;
  esac
done
else
  { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

rm -f conftest$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
echo "${ECHO_T}$ac_cv_exeext" >&6

rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
echo "$as_me:$LINENO: checking for suffix of object files" >&5
echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
if test "${ac_cv_objext+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() { return 0; }
_ACEOF
rm -f conftest.o conftest.obj
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
  for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
       break;;
  esac
done
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
echo "${ECHO_T}$ac_cv_objext" >&6
OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
if test "${ac_cv_c_compiler_gnu+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() {
#ifndef __GNUC__
       choke me
#endif
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_compiler_gnu=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_compiler_gnu=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
GCC=`test $ac_compiler_gnu = yes && echo yes`
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
CFLAGS="-g"
echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
if test "${ac_cv_prog_cc_g+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cc_g=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_prog_cc_g=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
if test "${ac_cv_prog_cc_stdc+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_prog_cc_stdc=no
ac_save_CC=$CC
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}
int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int main() { return f(e, argv, 0) != argv[0]  ||  f(e, argv, 1) != argv[1]; }
_ACEOF
# Don't try gcc -ansi; that turns off useful extensions and
# breaks some systems' header files.
# AIX			-qlanglvl=ansi
# Ultrix and OSF/1	-std1
# HP-UX 10.20 and later	-Ae
# HP-UX older versions	-Aa -D_HPUX_SOURCE
# SVR4			-Xc -D__EXTENSIONS__
for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cc_stdc=$ac_arg
break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.$ac_objext
done
rm -f conftest.$ac_ext conftest.$ac_objext
CC=$ac_save_CC

fi

case "x$ac_cv_prog_cc_stdc" in
  x|xno)
    echo "$as_me:$LINENO: result: none needed" >&5
echo "${ECHO_T}none needed" >&6 ;;
  *)
    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
    CC="$CC $ac_cv_prog_cc_stdc" ;;
esac

# Some people use a C++ compiler to compile C.  Since we use `exit',
# in C++ we need to declare it.  In case someone uses the same compiler
# for both compiling C and C++ we need to have the C++ compiler decide
# the declaration of exit, since it's the most demanding environment.
cat >conftest.$ac_ext <<_ACEOF
#ifndef __cplusplus
  choke me
#endif
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  for ac_declaration in \
   ''\
   '#include <stdlib.h>' \
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);'
do
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stdlib.h>
$ac_declaration
int main() { exit (42); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

continue
fi
rm -f conftest.$ac_objext conftest.$ac_ext
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_declaration
int main() { exit (42); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.$ac_objext conftest.$ac_ext
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi

else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.$ac_objext conftest.$ac_ext
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

# check the Fortran compiler
F77="g77" # FIXME:autoconf 2.12 doesn't recognise AC_PROG_F77

# check the C++ compiler
ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -n "$ac_tool_prefix"; then
  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  echo "$as_me:$LINENO: result: $CXX" >&5
echo "${ECHO_T}$CXX" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="$ac_prog"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
echo "${ECHO_T}$ac_ct_CXX" >&6
else
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi

  test -n "$ac_ct_CXX" && break
done
test -n "$ac_ct_CXX" || ac_ct_CXX="g++"

  CXX=$ac_ct_CXX
fi

# Provide some information about the compiler.
echo "$as_me:$LINENO:" \
     "checking for C++ compiler version" >&5
ac_compiler=`set X $ac_compile; echo $2`
{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
  (eval $ac_compiler --version </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
  (eval $ac_compiler -v </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
  (eval $ac_compiler -V </dev/null >&5) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }

echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() {
#ifndef __GNUC__
       choke me
#endif
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_compiler_gnu=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_compiler_gnu=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu

fi
echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
GXX=`test $ac_compiler_gnu = yes && echo yes`
ac_test_CXXFLAGS=${CXXFLAGS+set}
ac_save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="-g"
echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6
if test "${ac_cv_prog_cxx_g+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_prog_cxx_g=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_prog_cxx_g=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6
if test "$ac_test_CXXFLAGS" = set; then
  CXXFLAGS=$ac_save_CXXFLAGS
elif test $ac_cv_prog_cxx_g = yes; then
  if test "$GXX" = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-g"
  fi
else
  if test "$GXX" = yes; then
    CXXFLAGS="-O2"
  else
    CXXFLAGS=
  fi
fi
for ac_declaration in \
   ''\
   '#include <stdlib.h>' \
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);'
do
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stdlib.h>
$ac_declaration
int main() { exit (42); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

continue
fi
rm -f conftest.$ac_objext conftest.$ac_ext
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_declaration
int main() { exit (42); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  break
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.$ac_objext conftest.$ac_ext
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

# check the C++ preprocessor
ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
echo "$as_me:$LINENO: checking how to run the C++ preprocessor" >&5
echo $ECHO_N "checking how to run the C++ preprocessor... $ECHO_C" >&6
if test -z "$CXXCPP"; then
  if test "${ac_cv_prog_CXXCPP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
      # Double quotes because CXXCPP needs to be expanded
    for CXXCPP in "$CXX -E" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
                     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  break
fi
    done
    ac_cv_prog_CXXCPP=$CXXCPP
fi
  CXXCPP=$ac_cv_prog_CXXCPP
else
  ac_cv_prog_CXXCPP=$CXXCPP
fi
echo "$as_me:$LINENO: result: $CXXCPP" >&5
echo "${ECHO_T}$CXXCPP" >&6
ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
                     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  :
else
  { { echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details." >&5
echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

# remember these
given_CXXFLAGS="$CXXFLAGS"; export given_CXXFLAGS
given_TXXFLAGS="$TXXFLAGS"; export given_TXXFLAGS
#echo "Compiling non-template code  with: $CXX $CXXFLAGS";
#echo "Compiling template instances with: $CXX $TXXFLAGS";

## check for known compilers
#FMK_CXX_IS_EGCS
#FMK_CXX_IS_SUNPRO50
#FMK_CXX_IS_NATIVE_SGI7

#===========================================================================
# VXL STUFF

# from vcl/configure.in

#--------------------------------------------------------------------------------
# MANUAL OPTIONS

# use native STL? default is yes.
# Check whether --enable-emulation-stl or --disable-emulation-stl was given.
if test "${enable_emulation_stl+set}" = set; then
  enableval="$enable_emulation_stl"
  VCL_USE_NATIVE_STL=0
else
  VCL_USE_NATIVE_STL=1
fi;

# use native complex<>? default is yes.
# Check whether --enable-emulation-complex or --disable-emulation-complex was given.
if test "${enable_emulation_complex+set}" = set; then
  enableval="$enable_emulation_complex"
  VCL_USE_NATIVE_COMPLEX=0
else
  VCL_USE_NATIVE_COMPLEX=1
fi;

# use implicit template instantiation?
# Check whether --enable-implicit-templates or --disable-implicit-templates was given.
if test "${enable_implicit_templates+set}" = set; then
  enableval="$enable_implicit_templates"

if test "$enable_implicit_templates" = yes; then
  VCL_USE_IMPLICIT_TEMPLATES=1
else
  VCL_USE_IMPLICIT_TEMPLATES=0
fi
export VCL_USE_IMPLICIT_TEMPLATES

else

VCL_USE_IMPLICIT_TEMPLATES=1
export VCL_USE_IMPLICIT_TEMPLATES

fi;

# enable vnl bounds checking? default is yes.
# Check whether --enable-vnl_bounds_checking or --disable-vnl_bounds_checking was given.
if test "${enable_vnl_bounds_checking+set}" = set; then
  enableval="$enable_vnl_bounds_checking"
  if test "$enable_vnl_bounds_checking" = yes; then
  VNL_CONFIG_CHECK_BOUNDS=1
else
  VNL_CONFIG_CHECK_BOUNDS=0
fi
export VNL_CONFIG_CHECK_BOUNDS

else

VNL_CONFIG_CHECK_BOUNDS=1
export VNL_CONFIG_CHECK_BOUNDS

fi;

# enable certain old methods in vnl? default is no.
# Check whether --enable-vnl_legacy_methods or --disable-vnl_legacy_methods was given.
if test "${enable_vnl_legacy_methods+set}" = set; then
  enableval="$enable_vnl_legacy_methods"
  if test "$enable_vnl_legacy_methods" = yes; then
  VNL_CONFIG_LEGACY_METHODS=1
else
  VNL_CONFIG_LEGACY_METHODS=0
fi
export VNL_CONFIG_LEGACY_METHODS

else

VNL_CONFIG_LEGACY_METHODS=0
export VNL_CONFIG_LEGACY_METHODS

fi;

# enable thread safe code in vnl? default is yes.
# Check whether --enable-vnl_thread_safe or --disable-vnl_thread_safe was given.
if test "${enable_vnl_thread_safe+set}" = set; then
  enableval="$enable_vnl_thread_safe"
  if test "$enable_vnl_thread_safe" = yes; then
  VNL_CONFIG_THREAD_SAFE=1
else
  VNL_CONFIG_THREAD_SAFE=0
fi
export VNL_CONFIG_THREAD_SAFE

else

VNL_CONFIG_THREAD_SAFE=1
export VNL_CONFIG_THREAD_SAFE

fi;

#--------------------------------------------------------------------------------
# COMPILER CHARACTERISTICS

# Try to figure out the type of compiler
#
echo "$as_me:$LINENO: checking \"the C++ compiler type\"" >&5
echo $ECHO_N "checking \"the C++ compiler type\"... $ECHO_C" >&6

if   ( $CXX -v < /dev/null 2>&1 | grep 'gcc version' > /dev/null 2>&1); then
  compiler=gcc
  version=`$CXX -v < /dev/null 2>&1 | grep 'gcc version' | awk '{print $3}'`
elif ( $CXX -V < /dev/null 2>&1 | grep 'WorkShop' > /dev/null ); then
  compiler=workshop
  version=`$CXX -V < /dev/null 2>&1 | grep 'WorkShop' | awk '{print $4}'`
elif ( $CXX -version < /dev/null 2>&1 | grep 'MIPSpro' > /dev/null ); then
  compiler=mipspro
  version=`$CXX -version < /dev/null 2>&1 | grep 'MIPSpro' | awk '{print $4}'`
else
  compiler=unknown
  version=unknown
fi

echo "$as_me:$LINENO: result: $compiler version $version " >&5
echo "${ECHO_T}$compiler version $version " >&6

## syntax

echo "$as_me:$LINENO: checking whether the C++ compiler supports the keyword 'bool'" >&5
echo $ECHO_N "checking whether the C++ compiler supports the keyword 'bool'... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
void function(int i, void *ptr, bool v) {}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_BOOL=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_BOOL=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_BOOL
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports the keyword 'typename'" >&5
echo $ECHO_N "checking whether the C++ compiler supports the keyword 'typename'... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <typename T>
class bingo { public: void bongo(T **); };
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_TYPENAME=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_TYPENAME=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_TYPENAME
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler accepts the keyword 'export'" >&5
echo $ECHO_N "checking whether the C++ compiler accepts the keyword 'export'... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
export
template <class T, int N>
struct plither
{
  plither();
  ~plither();
  void f(T *, int);
};

void g()
{
  double x;
  int y;
  plither<double, 3> obj;
  obj.f(&x, y);
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_EXPORT=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_EXPORT=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_EXPORT
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports the keyword 'mutable'" >&5
echo $ECHO_N "checking whether the C++ compiler supports the keyword 'mutable'... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
class X { public: mutable int const *p; };
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_MUTABLE=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_MUTABLE=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_MUTABLE
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports the keyword 'explicit'" >&5
echo $ECHO_N "checking whether the C++ compiler supports the keyword 'explicit'... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
class X { public: explicit X(int ) {} };
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_EXPLICIT=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_EXPLICIT=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_EXPLICIT
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports RTTI" >&5
echo $ECHO_N "checking whether the C++ compiler supports RTTI... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <typeinfo>
class A { public: virtual ~A() {} virtual void f() {} };
class B : public A { public: void f() {} };
bool try_rtti() { B*b=0; A*a1=b,*a2=b; return typeid(a1)==typeid(a2); }
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_RTTI=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_RTTI=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_RTTI
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports the keyword 'dynamic_cast'" >&5
echo $ECHO_N "checking whether the C++ compiler supports the keyword 'dynamic_cast'... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
struct foo { foo(); virtual ~foo(); virtual void f() =0; };
struct boo : public foo { void f() { *(int*)0 = 1; } };
boo *try_dynamic_cast() { boo *b = 0; foo *f = b; return dynamic_cast<boo*>(f); }
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_DYNAMIC_CAST=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_DYNAMIC_CAST=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_DYNAMIC_CAST
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports ISO for scope" >&5
echo $ECHO_N "checking whether the C++ compiler supports ISO for scope... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
class A { public: void f() {} };
void fn() {
  for (int i=0; i<100; ++i) {}
  for (long i=0; i<1000; ++i) {}
  for (double i = 3.141; i<100.0; i += 1.0) {}
  // VC7 only raises warnings for previous tests
  A i; i.f();
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_FOR_SCOPE_HACK=0;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_FOR_SCOPE_HACK=1;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_FOR_SCOPE_HACK
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler has a fully functional pow(complex,complex)" >&5
echo $ECHO_N "checking whether the C++ compiler has a fully functional pow(complex,complex)... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
// It appears several programmers have (independently)
// not realised their lack of knowledge of complex numbers.
// pow(complex(-1,0),0.5) should return (0,1) not (Nan,0), etc.
#include <complex>
int main()
{
  const std::complex<double> neg1(-1.0,0.0);
  const std::complex<double> half(0.5,0.0);
  std::complex<double> sqrt_neg1 = std::pow(neg1, 0.5);
  if ( std::abs(sqrt_neg1.real()) > 1e-6 || std::abs(sqrt_neg1-1.0) < 1e-6 ) return 1;
  sqrt_neg1 = std::pow(neg1, half);
  if ( std::abs(sqrt_neg1.real()) > 1e-6 || std::abs(sqrt_neg1-1.0) < 1e-6 ) return 1;
  sqrt_neg1 = std::pow(-1.0, half);
  if ( std::abs(sqrt_neg1.real()) > 1e-6 || std::abs(sqrt_neg1-1.0) < 1e-6 ) return 1;
  return 0; // success
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_COMPLEX_POW_WORKS=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_COMPLEX_POW_WORKS=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_COMPLEX_POW_WORKS
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler needs default values in definition of function taking default values in declaration" >&5
echo $ECHO_N "checking whether the C++ compiler needs default values in definition of function taking default values in declaration... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
// declaration
void function(int x, char *ptr = "foo");
// definition
void function(int x, char *ptr) { ++ ptr[x]; }
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_DEFAULT_VALUE="/* no need */";echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_DEFAULT_VALUE=" = x";echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_DEFAULT_VALUE
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports member templates" >&5
echo $ECHO_N "checking whether the C++ compiler supports member templates... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class S>
class blip {
 public:
  S *ptr;
  template <class T>
  void klor(T *p) { *ptr = *p; }
};
void function()
{
  blip<double> b;
  int s;
  b.klor(&s);
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_MEMBER_TEMPLATES=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_MEMBER_TEMPLATES=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_MEMBER_TEMPLATES
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler supports partial specialization" >&5
echo $ECHO_N "checking whether the C++ compiler supports partial specialization... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T>
class victor
{
  T data[256];
 public:
  victor() {}
  T &operator[](unsigned i) { return data[i]; }
};

template <class T>
class victor<T *>
{
  T *data[256];
 public:
  T * &operator[](unsigned i) { return data[i]; }
  void slarf() { data[0] += (data[2] - data[1]); }
};

template <class A, class R>
struct foo {
  typedef A a;
  typedef R r;
};

template <class T>
struct foo<T *, T *> {
  void bar() {}
};

template <class T>
struct foo<int *, T> {
  void baz() {}
};
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CAN_DO_PARTIAL_SPECIALIZATION=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_CAN_DO_PARTIAL_SPECIALIZATION=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_CAN_DO_PARTIAL_SPECIALIZATION
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler understands the 'template <>' specialization syntax" >&5
echo $ECHO_N "checking whether the C++ compiler understands the 'template <>' specialization syntax... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
// declaration
template <class T>
class traits { public: };

// specialization
template <>
class traits<double> {
 public:
  typedef double abs_t;
  typedef double float_t;
};
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_DEFINE_SPECIALIZATION="template <>";VCL_DEF_SPEC=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_DEFINE_SPECIALIZATION="/* template <> */";VCL_DEF_SPEC=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_DEFINE_SPECIALIZATION
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler can distinguish cv-qualified specialization" >&5
echo $ECHO_N "checking whether the C++ compiler can distinguish cv-qualified specialization... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

given_CXXFLAGS="$CXXFLAGS -DVCL_DEF_SPEC=$VCL_DEF_SPEC"

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T> struct A;
#if VCL_DEF_SPEC
#define VCL_DEFINE_SPECIALIZATION template <>
#else
#define VCL_DEFINE_SPECIALIZATION
#endif
VCL_DEFINE_SPECIALIZATION struct A<int> {};
VCL_DEFINE_SPECIALIZATION struct A<int const> {};
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CANNOT_SPECIALIZE_CV=0;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_CANNOT_SPECIALIZE_CV=1;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_CANNOT_SPECIALIZE_CV
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler allows explicit instantiation of inline templates" >&5
echo $ECHO_N "checking whether the C++ compiler allows explicit instantiation of inline templates... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_TXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T> inline T dot(T const *a, T const *b) { return a[0]*b[0]; }
template double dot(double const *, double const *);
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_ALLOWS_INLINE_INSTANTIATION=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_ALLOWS_INLINE_INSTANTIATION=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_ALLOWS_INLINE_INSTANTIATION
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

if test "$VCL_ALLOWS_INLINE_INSTANTIATION" = "1"; then

echo "$as_me:$LINENO: checking whether the C++ compiler needs explicit instantiation of inline function templates" >&5
echo $ECHO_N "checking whether the C++ compiler needs explicit instantiation of inline function templates... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T>
inline
T dot(T const *a, T const *b)
{
  return a[0]*b[0] + a[1]*b[1] + a[2]*b[2];
}
//template double dot(double const *, double const *);
int function();
int call_this() { function(); return 0; }
int function()
{
  double a[3] = {1.0, 2.0, 3.0};
  double b[3] = {4.0, 5.0, 6.0};
  double a_b = dot(a, b);
  return int(a_b);
}
// If the program links, the compiler inlined the function template.
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_NEEDS_INLINE_INSTANTIATION=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_NEEDS_INLINE_INSTANTIATION=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
export VCL_NEEDS_INLINE_INSTANTIATION
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

else
VCL_NEEDS_INLINE_INSTANTIATION=0;
export VCL_NEEDS_INLINE_INSTANTIATION;
fi

echo "$as_me:$LINENO: checking whether the C++ compiler allows initialization of static const int" >&5
echo $ECHO_N "checking whether the C++ compiler allows initialization of static const int... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
class A {
 public:
  static const int x = 27;
  static const bool y = false;
};
int main() { return A::x == 27 && !A::y ? 0 : 1; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_STATIC_CONST_INIT_INT=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_STATIC_CONST_INIT_INT=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_STATIC_CONST_INIT_INT
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler incorrectly allocates storage for a static const" >&5
echo $ECHO_N "checking whether the C++ compiler incorrectly allocates storage for a static const... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
class A { public: static const int x = 27; };
int f(const void* x) { return x?1:0; }
int main() { return f(&A::x); }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_STATIC_CONST_INIT_NO_DEFN=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_STATIC_CONST_INIT_NO_DEFN=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_STATIC_CONST_INIT_NO_DEFN
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler allows initialization of static const floats" >&5
echo $ECHO_N "checking whether the C++ compiler allows initialization of static const floats... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
class A {
 public:
  static const float x = 27.0f;
  static const double y = 27.0;
};
int main() { return A::x == 27.0f && A::y == 27.0 ? 0 : 1; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_STATIC_CONST_INIT_FLOAT=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_STATIC_CONST_INIT_FLOAT=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_STATIC_CONST_INIT_FLOAT
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler accepts templated definitions of static class template members" >&5
echo $ECHO_N "checking whether the C++ compiler accepts templated definitions of static class template members... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T>
struct A { A() {} static char *fmt; };
template <class T> char *A<T>::fmt = 0;
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CAN_DO_STATIC_TEMPLATE_MEMBER=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_CAN_DO_STATIC_TEMPLATE_MEMBER=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_CAN_DO_STATIC_TEMPLATE_MEMBER
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler accepts non-type template parameters to function templates" >&5
echo $ECHO_N "checking whether the C++ compiler accepts non-type template parameters to function templates... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T, int n>
struct splek { T data[n]; };
template <class T, int n>
void splok_that_splek(splek<T, n> &s)
{
  for (int i=0; i<n; ++i)
    s.data[i] = T(27);
}
template struct splek<double, 3>;
template void splok_that_splek(splek<double, 3> &);
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CAN_DO_NON_TYPE_FUNCTION_TEMPLATE_PARAMETER=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_CAN_DO_NON_TYPE_FUNCTION_TEMPLATE_PARAMETER=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_CAN_DO_NON_TYPE_FUNCTION_TEMPLATE_PARAMETER
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler needs friend declarations for proper template function overloading" >&5
echo $ECHO_N "checking whether the C++ compiler needs friend declarations for proper template function overloading... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T>
class victor_base {
 public:
  T &operator[](unsigned i) { return data[i]; }
 protected:
  victor_base(T *p, unsigned n) : data(p), size(n) {}
 private:
  T *data;
  unsigned size;
};

template <class T>
bool operator==(victor_base<T> const &, victor_base<T> const &);

template <class T, int n>
class victor_fixed : public victor_base<T> {
 public:
  T data_fixed[n];
  victor_fixed() : victor_base<T>(data_fixed, n) {}
};

int function(victor_fixed<double, 3> const &a,
             victor_fixed<double, 3> const &b)
{
  if (a == b) // 2.7 fails to resolve this.
    return 3141;
  else
    return 2718;
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_NEED_FRIEND_FOR_TEMPLATE_OVERLOAD=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_NEED_FRIEND_FOR_TEMPLATE_OVERLOAD=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_NEED_FRIEND_FOR_TEMPLATE_OVERLOAD
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler requires explicit casts where it should not" >&5
echo $ECHO_N "checking whether the C++ compiler requires explicit casts where it should not... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T>
class vnl_vector {
 public:
  unsigned size;
  T *data;
  vnl_vector(unsigned n, T *ptr) : size(n), data(ptr) {}
};
template <class T>
bool operator==(vnl_vector<T> const &a, vnl_vector<T> const &);
//
template <unsigned n, class T>
class vnl_vector_fixed : public vnl_vector<T> {
 public:
  T data_fixed[n];
  vnl_vector_fixed() : vnl_vector<T>(n, data_fixed) {}
};
//
void print_it(vnl_vector<double> const &);
//
void try_it(vnl_vector_fixed<3, double> const &u,
            vnl_vector_fixed<3, double> const &v)
{
  // gcc 2.7 fails in this function.
  if (u == v) print_it(u);
  else { print_it(u); print_it(v); }
}
//
template <class S, class T>
void    copy_image(S const * const *src, T * const *dst, int, int);

typedef unsigned char byte;

void do_vision(int w, int h, byte **image_i, float **image_f) {
  // SGI CC 7.21 fails here.
  copy_image(image_i, image_f, w, h);
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_OVERLOAD_CAST="(x)";echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_OVERLOAD_CAST="((T)(x))";echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_OVERLOAD_CAST
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler requires <> in templated forward/friend declarations" >&5
echo $ECHO_N "checking whether the C++ compiler requires <> in templated forward/friend declarations... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T> class victor;
template <class T> T dot(victor<T> const &u, victor<T> const &v);

template <class T> class victor {
 public:
  // Without -fguiding-decls, egcs and 2.95 will rightly think
  // this declares a non-template and so the program will fail
  // due to access violation below (and missing symbols at link time).
  friend T dot /* <> */ (victor<T> const &, victor<T> const &);
 private:
  T data[3];
};

template <class T> T dot(victor<T> const &u, victor<T> const &v)
{
  return  // access violation here:
    u.data[0] * v.data[0] +
    u.data[1] * v.data[1] +
    u.data[2] * v.data[2];
}

template double dot(victor<double> const &, victor<double> const &);

double function(victor<double> const &u,
                victor<double> const &v)
{
  double uu = dot(u, u);
  double uv = dot(u, v);
  double vv = dot(v, v);
  return (uv*uv)/(uu*vv);
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_NULL_TMPL_ARGS="/* <> */";echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_NULL_TMPL_ARGS="<>";echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
export VCL_NULL_TMPL_ARGS
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler allows static data members" >&5
echo $ECHO_N "checking whether the C++ compiler allows static data members... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_TXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T>
class vvv { static T xxx; };
template class vvv<int>;
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_NO_STATIC_DATA_MEMBERS=0;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_NO_STATIC_DATA_MEMBERS=1;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_NO_STATIC_DATA_MEMBERS
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler mangles templated and non-templated functions differently" >&5
echo $ECHO_N "checking whether the C++ compiler mangles templated and non-templated functions differently... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
// Declare a function template.
template <class T> void function(T *ptr, int n);

int caller()
{
  double array[3];
  function(array, 0); // This should call function<double>(double *, int);
  return 0;
}

// Define a non-template function with the same name and signature.
void function(double *, int) {}

// If the program links, the compiler didn't make a distinction.
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_TEMPLATE_SYMBOLS=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_TEMPLATE_SYMBOLS=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
export VCL_HAS_TEMPLATE_SYMBOLS
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler incorrectly chooses template over specialisation" >&5
echo $ECHO_N "checking whether the C++ compiler incorrectly chooses template over specialisation... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
class A {};
template <class T> void f(T t) { t.compiler_selected_wrong_overload(); }
void f(const A&) {}
int main() { f(A()); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_TEMPLATE_MATCHES_TOO_OFTEN=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_TEMPLATE_MATCHES_TOO_OFTEN=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_TEMPLATE_MATCHES_TOO_OFTEN
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler forgets to destruct a temporary" >&5
echo $ECHO_N "checking whether the C++ compiler forgets to destruct a temporary... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
// Some compilers (at least Intel C++ 7) will create a B temporary on
// the f(c) line below and call both the A and B constructors, but
// then destroy the temporary by calling only ~A() and not calling
// ~B() first (or ever).  This program exits with 1 in such a case.
#include <stdlib.h>
struct A
{
  int mark;
  A() : mark(0) {}
  A(A const&): mark(0) {}
 ~A() { if (mark) { exit(1); } }
};
struct B: public A
{
  B(): A() {}
  B(B const& b): A(b) { mark = 1; }
 ~B() { mark = 0; }
};
struct C
{
  operator B () { return B(); }
};
void f(A) {}
int main() { C c; f(c); return 0; }
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_SLICED_DESTRUCTOR_BUG=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
VCL_HAS_SLICED_DESTRUCTOR_BUG=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
export VCL_HAS_SLICED_DESTRUCTOR_BUG
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether char is signed" >&5
echo $ECHO_N "checking whether char is signed... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
// Return 0 for char signed and 1 for char unsigned.
int main() {
  unsigned char uc = 255;
  return (*reinterpret_cast<char*>(&uc) < 0)?0:1;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CHAR_IS_SIGNED=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
VCL_CHAR_IS_SIGNED=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
export VCL_CHAR_IS_SIGNED
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether std::numeric_limits<float>::has_infinity == 1" >&5
echo $ECHO_N "checking whether std::numeric_limits<float>::has_infinity == 1... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
// Several versions of gcc (3.0, 3.1, and 3.2) come with a
// numeric_limits that reports that they have no infinity.
#include <limits>
int main() {
  return std::numeric_limits<double>::has_infinity &&
         std::numeric_limits<float>::has_infinity ? 0 : 1;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_NUMERIC_LIMITS_HAS_INFINITY=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
VCL_NUMERIC_LIMITS_HAS_INFINITY=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
export VCL_NUMERIC_LIMITS_HAS_INFINITY
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the processor actually has an infinity" >&5
echo $ECHO_N "checking whether the processor actually has an infinity... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

if test "$cross_compiling" = yes; then
  { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run test program while cross compiling
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cfloat>
union u {  double d;  unsigned char c[8]; };
int main() {
  if (sizeof(double) != 8) return 1;
  // If you have an odd machine, then add your own construction of infinity.
  u v;
  // Can we generate an IEEE infinity artifically on a big-endian machine?
  v.c[0] = 0x7f; v.c[1] = 0xf0;
  v.c[2] = v.c[3] = v.c[4] = v.c[5] = v.c[6] = v.c[7] = 0x00;
  if (v.d > DBL_MAX) return 0;
  // Can we generate an IEEE infinity artifically on a little-endian machine?
  v.c[7] = 0x7f; v.c[6] = 0xf0;
  v.c[0] = v.c[1] = v.c[2] = v.c[3] = v.c[4] = v.c[5] = 0x00;
  if (v.d > DBL_MAX) return 0;
  return 1;
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_PROCESSOR_HAS_INFINITY=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
VCL_PROCESSOR_HAS_INFINITY=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
export VCL_PROCESSOR_HAS_INFINITY
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler instantiates templates implicitly" >&5
echo $ECHO_N "checking whether the C++ compiler instantiates templates implicitly... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
struct fsm_plap_normal {};
template <class I>
inline fsm_plap_normal fsm_plap(I) { return fsm_plap_normal(); }

template <class I, class T>
void fsm_plop(I b, I e, T x, fsm_plap_normal)
{
  for (I p=b; p!=e; ++p)
    *p = x;
}

struct fsm_plap_double_star {};
inline fsm_plap_double_star fsm_plap(double *) { return fsm_plap_double_star(); }

template <class T>
void fsm_plop(double *b, double *e, T x, fsm_plap_double_star)
{
  for (double *p=b; p<e; ++p)
    *p = x;
}

template <class I, class T>
inline void fsm_plip(I b, I e, T x)
{
  if (b != e)
    fsm_plop(b, e, x, fsm_plap(b));
}

void f()
{
  int iarray[20];
  fsm_plip(iarray, iarray+20, 3141);
  double darray[20];
  fsm_plip(darray, darray+20, 2718);
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CAN_DO_IMPLICIT_TEMPLATES=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_CAN_DO_IMPLICIT_TEMPLATES=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
export VCL_CAN_DO_IMPLICIT_TEMPLATES
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

if test "$VCL_CAN_DO_IMPLICIT_TEMPLATES" = "0" -a "$VCL_USE_IMPLICIT_TEMPLATES" = "1"; then
  echo "Warning: turning off implicit template instantiation";
  VCL_USE_IMPLICIT_TEMPLATES=0;
fi
#VCL_DFL_TYPE_PARAM_STLDECL
#VCL_DFL_TMPL_PARAM_STLDECL
#VCL_DFL_TMPL_ARG

echo "$as_me:$LINENO: checking whether the C++ compiler accepts complete types as default template parameters" >&5
echo $ECHO_N "checking whether the C++ compiler accepts complete types as default template parameters... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T> struct less {};

template <class T, class C=less<int> >
struct X
{
  typedef X<T,C> self;
  self foo (self const & t) {
    if ( t.a == 0 ) return *this;
    else return t;
  }
 private:
  int a;
};

X<int> a;
X<int, less<short> > b;
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CAN_DO_COMPLETE_DEFAULT_TYPE_PARAMETER=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_CAN_DO_COMPLETE_DEFAULT_TYPE_PARAMETER=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_CAN_DO_COMPLETE_DEFAULT_TYPE_PARAMETER
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

if test "$VCL_CAN_DO_COMPLETE_DEFAULT_TYPE_PARAMETER" = "1"; then

echo "$as_me:$LINENO: checking whether the C++ compiler accepts default template type parameters templated over earlier parameters" >&5
echo $ECHO_N "checking whether the C++ compiler accepts default template type parameters templated over earlier parameters... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template <class T> struct less {};
template <class T, class C=less<T> >
struct X { C t1; };
X<int> a;
X<int, less<short> > b;
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

else
VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER=0;
export VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER;
fi
#VCL_CXX_DEFAULT_TMPL_ARG

echo "$as_me:$LINENO: checking whether the C++ compiler needs the SunPro class scope hack" >&5
echo $ECHO_N "checking whether the C++ compiler needs the SunPro class scope hack... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
template < class T >
struct allocator
{
  allocator() {}
  allocator(const allocator<T>&) {}
};

template < class T , class Allocator = allocator < T > >
struct vector
{
  vector() {}
 ~vector() {}
};

template < class T >
struct spoof { void set_row(unsigned, vector< T /*, allocator<T>*/ > const&); };

template < class T >
void spoof < T > :: set_row ( unsigned , vector < T /*, allocator<T>*/ > const & ) {}

template class spoof<double>;

// If the program compiles, we don't need the hack
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_SUNPRO_CLASS_SCOPE_HACK="/* , A */";echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_SUNPRO_CLASS_SCOPE_HACK=", A";echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_SUNPRO_CLASS_SCOPE_HACK
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler has working exceptions" >&5
echo $ECHO_N "checking whether the C++ compiler has working exceptions... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
struct bizop {};

int functionella(char const *a, char const *b)
{
  if (!a &&  b) throw "a is no good";
  if ( a && !b) throw "b is no better";
  if (!a && !b) throw bizop();
  return *a - *b;
}

void monkeylette()
{
  try {
    functionella(  0,   0);
    functionella("a",   0);
    functionella(  0, "b");
    functionella("a", "b");
  }
  catch (char const *s) {
    // oops.
  }
  catch (bizop b) {
    // outch
  }
  catch (...) {
    // phew
  }
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_EXCEPTIONS=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_EXCEPTIONS=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_EXCEPTIONS
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler has working namespaces" >&5
echo $ECHO_N "checking whether the C++ compiler has working namespaces... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
namespace foo {
  int hello() { return 10; }
};

// 7.3.1
namespace Outer {
  int i;
  namespace Inner {
    void f() { i++; } // Outer::i
    int i;
    void g() { i++; } // Inner::i
  }
}

// 7.3.1.1
namespace { int i; } // unique::i
void f() { i++; }    // unique::i  (gcc 2.7.2 fails here).

namespace A {
  namespace {
    int i;           // A::unique::i
    int j;           // A::unique::j
  }
  void g() { i++; }  // A::unique::i
}

using namespace A;
void h() {
  //i++;               // error: unique::i or A::unique::i
  A::i++;              // A::unique::i
  j++;                 // A::unique::j
}

extern "C" double sqrt(double);

namespace foo {
  template <class T> struct complex { T re, im; };
  template <class T> T abs(complex<T> const &z) { return T(::sqrt(double(z.re*z.re + z.im+z.im))); }
}

namespace bar {
  int abs(int);
  long abs(long);
  float abs(float);
  double abs(double);
}

namespace diced {
  using foo::complex; // <-- I'm told vc60 fails here.
  using foo::abs;
  using bar::abs;
}

extern "C" int printf(char const *, ...);

void flegg() {
  int a = -1;
  long b = -2;
  float c = -3;
  double d = -4;
  diced::complex<double> e = { 3, 4 };
  printf("%d\n",  diced::abs(a)); // 1
  printf("%ld\n", diced::abs(b)); // 2
  printf("%f\n",  diced::abs(c)); // 3
  printf("%lf\n", diced::abs(d)); // 4
  printf("%lf\n", diced::abs(e)); // 5
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_HAS_NAMESPACES=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_HAS_NAMESPACES=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_HAS_NAMESPACES
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether the C++ compiler allows std:: for the standard library" >&5
echo $ECHO_N "checking whether the C++ compiler allows std:: for the standard library... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cmath>
#include <vector>
#include <iostream>
void function() {
  std::vector<double> flaz;
  flaz.push_back(std::sqrt(2.0));
  flaz.push_back(std::fabs(1.0f));
  std::cerr << "hello, std::world" << std::endl;
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_ALLOWS_NAMESPACE_STD=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_ALLOWS_NAMESPACE_STD=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_ALLOWS_NAMESPACE_STD
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

if test "$VCL_ALLOWS_NAMESPACE_STD" = "1"; then

echo "$as_me:$LINENO: checking whether the C++ compiler needs std:: for the standard library" >&5
echo $ECHO_N "checking whether the C++ compiler needs std:: for the standard library... $ECHO_C" >&6

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

CXXFLAGS=$given_CXXFLAGS
export CXXFLAGS

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cmath>
#include <vector>
//#include <iostream>
void function() {
  vector<double> flaz;
  flaz.push_back(sqrt(2.0));
  flaz.push_back(fabs(1.0f));
  //cerr << "hello, world" << endl;
}
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VCL_NEEDS_NAMESPACE_STD=0;echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VCL_NEEDS_NAMESPACE_STD=1;echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VCL_NEEDS_NAMESPACE_STD
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

else
VCL_NEEDS_NAMESPACE_STD=0; export VCL_NEEDS_NAMESPACE_STD
fi

## architecture

echo "$as_me:$LINENO: checking whether byte ordering is bigendian" >&5
echo $ECHO_N "checking whether byte ordering is bigendian... $ECHO_C" >&6
if test "${ac_cv_c_bigendian+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  # See if sys/param.h defines the BYTE_ORDER macro.
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <sys/types.h>
#include <sys/param.h>
int main() {
#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
 bogus endian macros
#endif
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  # It does; now see whether it defined to BIG_ENDIAN or not.
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <sys/types.h>
#include <sys/param.h>
int main() {
#if BYTE_ORDER != BIG_ENDIAN
 not big endian
#endif
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_c_bigendian=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_c_bigendian=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

# It does not; compile a test program.
if test "$cross_compiling" = yes; then
  # try to guess the endianness by grepping values into an object file
  ac_cv_c_bigendian=unknown
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
short ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
short ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
void _ascii () { char *s = (char *) ascii_mm; s = (char *) ascii_ii; }
short ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
short ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
void _ebcdic () { char *s = (char *) ebcdic_mm; s = (char *) ebcdic_ii; }
int main() { _ascii (); _ebcdic (); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  if grep BIGenDianSyS conftest.$ac_objext >/dev/null ; then
  ac_cv_c_bigendian=yes
fi
if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
  if test "$ac_cv_c_bigendian" = unknown; then
    ac_cv_c_bigendian=no
  else
    # finding both strings is unlikely to happen, but who knows?
    ac_cv_c_bigendian=unknown
  fi
fi
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.$ac_objext conftest.$ac_ext
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() {
  /* Are we little or big endian?  From Harbison&Steele.  */
  union
  {
    long l;
    char c[sizeof (long)];
  } u;
  u.l = 1;
  exit (u.c[sizeof (long) - 1] == 1);
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_c_bigendian=no
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
ac_cv_c_bigendian=yes
fi
rm -f core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
rm -f conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_c_bigendian" >&5
echo "${ECHO_T}$ac_cv_c_bigendian" >&6
case $ac_cv_c_bigendian in
  yes)

cat >>confdefs.h <<\_ACEOF
#define WORDS_BIGENDIAN 1
_ACEOF
 ;;
  no)
     ;;
  *)
    { { echo "$as_me:$LINENO: error: unknown endianness
presetting ac_cv_c_bigendian=no (or yes) will help" >&5
echo "$as_me: error: unknown endianness
presetting ac_cv_c_bigendian=no (or yes) will help" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

if test "$ac_cv_c_bigendian" = "yes"; then
  VCL_BIG_ENDIAN=1;
  VCL_LITTLE_ENDIAN=0;
else
  VCL_BIG_ENDIAN=0;
  VCL_LITTLE_ENDIAN=1;
fi
export VCL_BIG_ENDIAN
export VCL_LITTLE_ENDIAN

## standard header files.

echo "$as_me:$LINENO: checking for egrep" >&5
echo $ECHO_N "checking for egrep... $ECHO_C" >&6
if test "${ac_cv_prog_egrep+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if echo a | (grep -E '(a|b)') >/dev/null 2>&1
    then ac_cv_prog_egrep='grep -E'
    else ac_cv_prog_egrep='egrep'
    fi
fi
echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
echo "${ECHO_T}$ac_cv_prog_egrep" >&6
 EGREP=$ac_cv_prog_egrep

echo "$as_me:$LINENO: checking for ANSI C header files" >&5
echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
if test "${ac_cv_header_stdc+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_header_stdc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_header_stdc=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <string.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then
  :
else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stdlib.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then
  :
else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then
  :
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ctype.h>
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
                   (('a' <= (c) && (c) <= 'i') \
                     || ('j' <= (c) && (c) <= 'r') \
                     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int main() {
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
        || toupper (i) != TOUPPER (i))
      exit(2);
  exit (0);
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  :
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
ac_cv_header_stdc=no
fi
rm -f core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
fi
echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
echo "${ECHO_T}$ac_cv_header_stdc" >&6
if test $ac_cv_header_stdc = yes; then

cat >>confdefs.h <<\_ACEOF
#define STDC_HEADERS 1
_ACEOF

fi

# On IRIX 5.3, sys/types and inttypes.h are conflicting.

for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
                  inttypes.h stdint.h unistd.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_header" >&5
echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
if eval "test \"\${$as_ac_Header+set}\" = set"; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default

#include <$ac_header>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  eval "$as_ac_Header=yes"
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

eval "$as_ac_Header=no"
fi
rm -f conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
if test `eval echo '${'$as_ac_Header'}'` = yes; then
  cat >>confdefs.h <<_ACEOF
#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cassert+set}" = set; then
  echo "$as_me:$LINENO: checking for cassert" >&5
echo $ECHO_N "checking for cassert... $ECHO_C" >&6
if test "${ac_cv_header_cassert+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cassert" >&5
echo "${ECHO_T}$ac_cv_header_cassert" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cassert usability" >&5
echo $ECHO_N "checking cassert usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cassert>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cassert presence" >&5
echo $ECHO_N "checking cassert presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cassert>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cassert: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cassert: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cassert: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cassert: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cassert: present but cannot be compiled" >&5
echo "$as_me: WARNING: cassert: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cassert: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cassert: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cassert: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cassert: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cassert" >&5
echo $ECHO_N "checking for cassert... $ECHO_C" >&6
if test "${ac_cv_header_cassert+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cassert=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cassert" >&5
echo "${ECHO_T}$ac_cv_header_cassert" >&6

fi
if test $ac_cv_header_cassert = yes; then
  VCL_CXX_HAS_HEADER_CASSERT=1
else
  VCL_CXX_HAS_HEADER_CASSERT=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_ciso646+set}" = set; then
  echo "$as_me:$LINENO: checking for ciso646" >&5
echo $ECHO_N "checking for ciso646... $ECHO_C" >&6
if test "${ac_cv_header_ciso646+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ciso646" >&5
echo "${ECHO_T}$ac_cv_header_ciso646" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking ciso646 usability" >&5
echo $ECHO_N "checking ciso646 usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <ciso646>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking ciso646 presence" >&5
echo $ECHO_N "checking ciso646 presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ciso646>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: ciso646: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: ciso646: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: ciso646: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ciso646: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: ciso646: present but cannot be compiled" >&5
echo "$as_me: WARNING: ciso646: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: ciso646: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: ciso646: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: ciso646: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ciso646: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for ciso646" >&5
echo $ECHO_N "checking for ciso646... $ECHO_C" >&6
if test "${ac_cv_header_ciso646+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_ciso646=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ciso646" >&5
echo "${ECHO_T}$ac_cv_header_ciso646" >&6

fi
if test $ac_cv_header_ciso646 = yes; then
  VCL_CXX_HAS_HEADER_CISO646=1
else
  VCL_CXX_HAS_HEADER_CISO646=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_csetjmp+set}" = set; then
  echo "$as_me:$LINENO: checking for csetjmp" >&5
echo $ECHO_N "checking for csetjmp... $ECHO_C" >&6
if test "${ac_cv_header_csetjmp+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_csetjmp" >&5
echo "${ECHO_T}$ac_cv_header_csetjmp" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking csetjmp usability" >&5
echo $ECHO_N "checking csetjmp usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <csetjmp>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking csetjmp presence" >&5
echo $ECHO_N "checking csetjmp presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <csetjmp>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: csetjmp: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: csetjmp: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: csetjmp: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: csetjmp: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: csetjmp: present but cannot be compiled" >&5
echo "$as_me: WARNING: csetjmp: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: csetjmp: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: csetjmp: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: csetjmp: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: csetjmp: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for csetjmp" >&5
echo $ECHO_N "checking for csetjmp... $ECHO_C" >&6
if test "${ac_cv_header_csetjmp+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_csetjmp=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_csetjmp" >&5
echo "${ECHO_T}$ac_cv_header_csetjmp" >&6

fi
if test $ac_cv_header_csetjmp = yes; then
  VCL_CXX_HAS_HEADER_CSETJMP=1
else
  VCL_CXX_HAS_HEADER_CSETJMP=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cstdio+set}" = set; then
  echo "$as_me:$LINENO: checking for cstdio" >&5
echo $ECHO_N "checking for cstdio... $ECHO_C" >&6
if test "${ac_cv_header_cstdio+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstdio" >&5
echo "${ECHO_T}$ac_cv_header_cstdio" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cstdio usability" >&5
echo $ECHO_N "checking cstdio usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cstdio>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cstdio presence" >&5
echo $ECHO_N "checking cstdio presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cstdio>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cstdio: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cstdio: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdio: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstdio: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cstdio: present but cannot be compiled" >&5
echo "$as_me: WARNING: cstdio: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdio: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cstdio: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdio: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstdio: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cstdio" >&5
echo $ECHO_N "checking for cstdio... $ECHO_C" >&6
if test "${ac_cv_header_cstdio+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cstdio=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstdio" >&5
echo "${ECHO_T}$ac_cv_header_cstdio" >&6

fi
if test $ac_cv_header_cstdio = yes; then
  VCL_CXX_HAS_HEADER_CSTDIO=1
else
  VCL_CXX_HAS_HEADER_CSTDIO=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_ctime+set}" = set; then
  echo "$as_me:$LINENO: checking for ctime" >&5
echo $ECHO_N "checking for ctime... $ECHO_C" >&6
if test "${ac_cv_header_ctime+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ctime" >&5
echo "${ECHO_T}$ac_cv_header_ctime" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking ctime usability" >&5
echo $ECHO_N "checking ctime usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <ctime>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking ctime presence" >&5
echo $ECHO_N "checking ctime presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ctime>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: ctime: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: ctime: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: ctime: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ctime: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: ctime: present but cannot be compiled" >&5
echo "$as_me: WARNING: ctime: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: ctime: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: ctime: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: ctime: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ctime: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for ctime" >&5
echo $ECHO_N "checking for ctime... $ECHO_C" >&6
if test "${ac_cv_header_ctime+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_ctime=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ctime" >&5
echo "${ECHO_T}$ac_cv_header_ctime" >&6

fi
if test $ac_cv_header_ctime = yes; then
  VCL_CXX_HAS_HEADER_CTIME=1
else
  VCL_CXX_HAS_HEADER_CTIME=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cctype+set}" = set; then
  echo "$as_me:$LINENO: checking for cctype" >&5
echo $ECHO_N "checking for cctype... $ECHO_C" >&6
if test "${ac_cv_header_cctype+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cctype" >&5
echo "${ECHO_T}$ac_cv_header_cctype" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cctype usability" >&5
echo $ECHO_N "checking cctype usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cctype>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cctype presence" >&5
echo $ECHO_N "checking cctype presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cctype>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cctype: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cctype: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cctype: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cctype: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cctype: present but cannot be compiled" >&5
echo "$as_me: WARNING: cctype: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cctype: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cctype: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cctype: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cctype: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cctype" >&5
echo $ECHO_N "checking for cctype... $ECHO_C" >&6
if test "${ac_cv_header_cctype+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cctype=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cctype" >&5
echo "${ECHO_T}$ac_cv_header_cctype" >&6

fi
if test $ac_cv_header_cctype = yes; then
  VCL_CXX_HAS_HEADER_CCTYPE=1
else
  VCL_CXX_HAS_HEADER_CCTYPE=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_climits+set}" = set; then
  echo "$as_me:$LINENO: checking for climits" >&5
echo $ECHO_N "checking for climits... $ECHO_C" >&6
if test "${ac_cv_header_climits+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_climits" >&5
echo "${ECHO_T}$ac_cv_header_climits" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking climits usability" >&5
echo $ECHO_N "checking climits usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <climits>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking climits presence" >&5
echo $ECHO_N "checking climits presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <climits>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: climits: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: climits: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: climits: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: climits: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: climits: present but cannot be compiled" >&5
echo "$as_me: WARNING: climits: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: climits: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: climits: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: climits: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: climits: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for climits" >&5
echo $ECHO_N "checking for climits... $ECHO_C" >&6
if test "${ac_cv_header_climits+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_climits=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_climits" >&5
echo "${ECHO_T}$ac_cv_header_climits" >&6

fi
if test $ac_cv_header_climits = yes; then
  VCL_CXX_HAS_HEADER_CLIMITS=1
else
  VCL_CXX_HAS_HEADER_CLIMITS=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_csignal+set}" = set; then
  echo "$as_me:$LINENO: checking for csignal" >&5
echo $ECHO_N "checking for csignal... $ECHO_C" >&6
if test "${ac_cv_header_csignal+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_csignal" >&5
echo "${ECHO_T}$ac_cv_header_csignal" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking csignal usability" >&5
echo $ECHO_N "checking csignal usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <csignal>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking csignal presence" >&5
echo $ECHO_N "checking csignal presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <csignal>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: csignal: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: csignal: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: csignal: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: csignal: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: csignal: present but cannot be compiled" >&5
echo "$as_me: WARNING: csignal: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: csignal: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: csignal: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: csignal: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: csignal: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for csignal" >&5
echo $ECHO_N "checking for csignal... $ECHO_C" >&6
if test "${ac_cv_header_csignal+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_csignal=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_csignal" >&5
echo "${ECHO_T}$ac_cv_header_csignal" >&6

fi
if test $ac_cv_header_csignal = yes; then
  VCL_CXX_HAS_HEADER_CSIGNAL=1
else
  VCL_CXX_HAS_HEADER_CSIGNAL=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cstdlib+set}" = set; then
  echo "$as_me:$LINENO: checking for cstdlib" >&5
echo $ECHO_N "checking for cstdlib... $ECHO_C" >&6
if test "${ac_cv_header_cstdlib+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstdlib" >&5
echo "${ECHO_T}$ac_cv_header_cstdlib" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cstdlib usability" >&5
echo $ECHO_N "checking cstdlib usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cstdlib>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cstdlib presence" >&5
echo $ECHO_N "checking cstdlib presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cstdlib>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cstdlib: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cstdlib: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdlib: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstdlib: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cstdlib: present but cannot be compiled" >&5
echo "$as_me: WARNING: cstdlib: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdlib: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cstdlib: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdlib: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstdlib: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cstdlib" >&5
echo $ECHO_N "checking for cstdlib... $ECHO_C" >&6
if test "${ac_cv_header_cstdlib+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cstdlib=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstdlib" >&5
echo "${ECHO_T}$ac_cv_header_cstdlib" >&6

fi
if test $ac_cv_header_cstdlib = yes; then
  VCL_CXX_HAS_HEADER_CSTDLIB=1
else
  VCL_CXX_HAS_HEADER_CSTDLIB=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cwchar+set}" = set; then
  echo "$as_me:$LINENO: checking for cwchar" >&5
echo $ECHO_N "checking for cwchar... $ECHO_C" >&6
if test "${ac_cv_header_cwchar+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cwchar" >&5
echo "${ECHO_T}$ac_cv_header_cwchar" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cwchar usability" >&5
echo $ECHO_N "checking cwchar usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cwchar>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cwchar presence" >&5
echo $ECHO_N "checking cwchar presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cwchar>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cwchar: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cwchar: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cwchar: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cwchar: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cwchar: present but cannot be compiled" >&5
echo "$as_me: WARNING: cwchar: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cwchar: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cwchar: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cwchar: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cwchar: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cwchar" >&5
echo $ECHO_N "checking for cwchar... $ECHO_C" >&6
if test "${ac_cv_header_cwchar+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cwchar=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cwchar" >&5
echo "${ECHO_T}$ac_cv_header_cwchar" >&6

fi
if test $ac_cv_header_cwchar = yes; then
  VCL_CXX_HAS_HEADER_CWCHAR=1
else
  VCL_CXX_HAS_HEADER_CWCHAR=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cerrno+set}" = set; then
  echo "$as_me:$LINENO: checking for cerrno" >&5
echo $ECHO_N "checking for cerrno... $ECHO_C" >&6
if test "${ac_cv_header_cerrno+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cerrno" >&5
echo "${ECHO_T}$ac_cv_header_cerrno" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cerrno usability" >&5
echo $ECHO_N "checking cerrno usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cerrno>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cerrno presence" >&5
echo $ECHO_N "checking cerrno presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cerrno>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cerrno: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cerrno: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cerrno: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cerrno: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cerrno: present but cannot be compiled" >&5
echo "$as_me: WARNING: cerrno: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cerrno: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cerrno: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cerrno: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cerrno: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cerrno" >&5
echo $ECHO_N "checking for cerrno... $ECHO_C" >&6
if test "${ac_cv_header_cerrno+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cerrno=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cerrno" >&5
echo "${ECHO_T}$ac_cv_header_cerrno" >&6

fi
if test $ac_cv_header_cerrno = yes; then
  VCL_CXX_HAS_HEADER_CERRNO=1
else
  VCL_CXX_HAS_HEADER_CERRNO=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_clocale+set}" = set; then
  echo "$as_me:$LINENO: checking for clocale" >&5
echo $ECHO_N "checking for clocale... $ECHO_C" >&6
if test "${ac_cv_header_clocale+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_clocale" >&5
echo "${ECHO_T}$ac_cv_header_clocale" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking clocale usability" >&5
echo $ECHO_N "checking clocale usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <clocale>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking clocale presence" >&5
echo $ECHO_N "checking clocale presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <clocale>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: clocale: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: clocale: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: clocale: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: clocale: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: clocale: present but cannot be compiled" >&5
echo "$as_me: WARNING: clocale: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: clocale: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: clocale: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: clocale: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: clocale: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for clocale" >&5
echo $ECHO_N "checking for clocale... $ECHO_C" >&6
if test "${ac_cv_header_clocale+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_clocale=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_clocale" >&5
echo "${ECHO_T}$ac_cv_header_clocale" >&6

fi
if test $ac_cv_header_clocale = yes; then
  VCL_CXX_HAS_HEADER_CLOCALE=1
else
  VCL_CXX_HAS_HEADER_CLOCALE=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cstdarg+set}" = set; then
  echo "$as_me:$LINENO: checking for cstdarg" >&5
echo $ECHO_N "checking for cstdarg... $ECHO_C" >&6
if test "${ac_cv_header_cstdarg+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstdarg" >&5
echo "${ECHO_T}$ac_cv_header_cstdarg" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cstdarg usability" >&5
echo $ECHO_N "checking cstdarg usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cstdarg>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cstdarg presence" >&5
echo $ECHO_N "checking cstdarg presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cstdarg>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cstdarg: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cstdarg: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdarg: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstdarg: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cstdarg: present but cannot be compiled" >&5
echo "$as_me: WARNING: cstdarg: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdarg: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cstdarg: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstdarg: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstdarg: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cstdarg" >&5
echo $ECHO_N "checking for cstdarg... $ECHO_C" >&6
if test "${ac_cv_header_cstdarg+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cstdarg=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstdarg" >&5
echo "${ECHO_T}$ac_cv_header_cstdarg" >&6

fi
if test $ac_cv_header_cstdarg = yes; then
  VCL_CXX_HAS_HEADER_CSTDARG=1
else
  VCL_CXX_HAS_HEADER_CSTDARG=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cstring+set}" = set; then
  echo "$as_me:$LINENO: checking for cstring" >&5
echo $ECHO_N "checking for cstring... $ECHO_C" >&6
if test "${ac_cv_header_cstring+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstring" >&5
echo "${ECHO_T}$ac_cv_header_cstring" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cstring usability" >&5
echo $ECHO_N "checking cstring usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cstring>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cstring presence" >&5
echo $ECHO_N "checking cstring presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cstring>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cstring: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cstring: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstring: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstring: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cstring: present but cannot be compiled" >&5
echo "$as_me: WARNING: cstring: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstring: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cstring: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstring: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstring: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cstring" >&5
echo $ECHO_N "checking for cstring... $ECHO_C" >&6
if test "${ac_cv_header_cstring+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cstring=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstring" >&5
echo "${ECHO_T}$ac_cv_header_cstring" >&6

fi
if test $ac_cv_header_cstring = yes; then
  VCL_CXX_HAS_HEADER_CSTRING=1
else
  VCL_CXX_HAS_HEADER_CSTRING=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cwctype+set}" = set; then
  echo "$as_me:$LINENO: checking for cwctype" >&5
echo $ECHO_N "checking for cwctype... $ECHO_C" >&6
if test "${ac_cv_header_cwctype+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cwctype" >&5
echo "${ECHO_T}$ac_cv_header_cwctype" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cwctype usability" >&5
echo $ECHO_N "checking cwctype usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cwctype>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cwctype presence" >&5
echo $ECHO_N "checking cwctype presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cwctype>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cwctype: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cwctype: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cwctype: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cwctype: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cwctype: present but cannot be compiled" >&5
echo "$as_me: WARNING: cwctype: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cwctype: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cwctype: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cwctype: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cwctype: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cwctype" >&5
echo $ECHO_N "checking for cwctype... $ECHO_C" >&6
if test "${ac_cv_header_cwctype+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cwctype=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cwctype" >&5
echo "${ECHO_T}$ac_cv_header_cwctype" >&6

fi
if test $ac_cv_header_cwctype = yes; then
  VCL_CXX_HAS_HEADER_CWCTYPE=1
else
  VCL_CXX_HAS_HEADER_CWCTYPE=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cfloat+set}" = set; then
  echo "$as_me:$LINENO: checking for cfloat" >&5
echo $ECHO_N "checking for cfloat... $ECHO_C" >&6
if test "${ac_cv_header_cfloat+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cfloat" >&5
echo "${ECHO_T}$ac_cv_header_cfloat" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cfloat usability" >&5
echo $ECHO_N "checking cfloat usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cfloat>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cfloat presence" >&5
echo $ECHO_N "checking cfloat presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cfloat>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cfloat: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cfloat: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cfloat: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cfloat: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cfloat: present but cannot be compiled" >&5
echo "$as_me: WARNING: cfloat: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cfloat: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cfloat: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cfloat: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cfloat: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cfloat" >&5
echo $ECHO_N "checking for cfloat... $ECHO_C" >&6
if test "${ac_cv_header_cfloat+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cfloat=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cfloat" >&5
echo "${ECHO_T}$ac_cv_header_cfloat" >&6

fi
if test $ac_cv_header_cfloat = yes; then
  VCL_CXX_HAS_HEADER_CFLOAT=1
else
  VCL_CXX_HAS_HEADER_CFLOAT=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cmath+set}" = set; then
  echo "$as_me:$LINENO: checking for cmath" >&5
echo $ECHO_N "checking for cmath... $ECHO_C" >&6
if test "${ac_cv_header_cmath+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cmath" >&5
echo "${ECHO_T}$ac_cv_header_cmath" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cmath usability" >&5
echo $ECHO_N "checking cmath usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cmath>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cmath presence" >&5
echo $ECHO_N "checking cmath presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cmath>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cmath: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cmath: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cmath: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cmath: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cmath: present but cannot be compiled" >&5
echo "$as_me: WARNING: cmath: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cmath: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cmath: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cmath: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cmath: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cmath" >&5
echo $ECHO_N "checking for cmath... $ECHO_C" >&6
if test "${ac_cv_header_cmath+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cmath=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cmath" >&5
echo "${ECHO_T}$ac_cv_header_cmath" >&6

fi
if test $ac_cv_header_cmath = yes; then
  VCL_CXX_HAS_HEADER_CMATH=1
else
  VCL_CXX_HAS_HEADER_CMATH=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_cstddef+set}" = set; then
  echo "$as_me:$LINENO: checking for cstddef" >&5
echo $ECHO_N "checking for cstddef... $ECHO_C" >&6
if test "${ac_cv_header_cstddef+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstddef" >&5
echo "${ECHO_T}$ac_cv_header_cstddef" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking cstddef usability" >&5
echo $ECHO_N "checking cstddef usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <cstddef>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking cstddef presence" >&5
echo $ECHO_N "checking cstddef presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <cstddef>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: cstddef: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: cstddef: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstddef: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstddef: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: cstddef: present but cannot be compiled" >&5
echo "$as_me: WARNING: cstddef: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstddef: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: cstddef: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: cstddef: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: cstddef: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for cstddef" >&5
echo $ECHO_N "checking for cstddef... $ECHO_C" >&6
if test "${ac_cv_header_cstddef+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_cstddef=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_cstddef" >&5
echo "${ECHO_T}$ac_cv_header_cstddef" >&6

fi
if test $ac_cv_header_cstddef = yes; then
  VCL_CXX_HAS_HEADER_CSTDDEF=1
else
  VCL_CXX_HAS_HEADER_CSTDDEF=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_algorithm+set}" = set; then
  echo "$as_me:$LINENO: checking for algorithm" >&5
echo $ECHO_N "checking for algorithm... $ECHO_C" >&6
if test "${ac_cv_header_algorithm+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_algorithm" >&5
echo "${ECHO_T}$ac_cv_header_algorithm" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking algorithm usability" >&5
echo $ECHO_N "checking algorithm usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <algorithm>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking algorithm presence" >&5
echo $ECHO_N "checking algorithm presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <algorithm>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: algorithm: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: algorithm: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: algorithm: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: algorithm: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: algorithm: present but cannot be compiled" >&5
echo "$as_me: WARNING: algorithm: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: algorithm: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: algorithm: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: algorithm: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: algorithm: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for algorithm" >&5
echo $ECHO_N "checking for algorithm... $ECHO_C" >&6
if test "${ac_cv_header_algorithm+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_algorithm=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_algorithm" >&5
echo "${ECHO_T}$ac_cv_header_algorithm" >&6

fi
if test $ac_cv_header_algorithm = yes; then
  VCL_CXX_HAS_HEADER_ALGORITHM=1
else
  VCL_CXX_HAS_HEADER_ALGORITHM=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_iomanip+set}" = set; then
  echo "$as_me:$LINENO: checking for iomanip" >&5
echo $ECHO_N "checking for iomanip... $ECHO_C" >&6
if test "${ac_cv_header_iomanip+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iomanip" >&5
echo "${ECHO_T}$ac_cv_header_iomanip" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking iomanip usability" >&5
echo $ECHO_N "checking iomanip usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <iomanip>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking iomanip presence" >&5
echo $ECHO_N "checking iomanip presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <iomanip>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: iomanip: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: iomanip: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: iomanip: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iomanip: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: iomanip: present but cannot be compiled" >&5
echo "$as_me: WARNING: iomanip: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: iomanip: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: iomanip: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: iomanip: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iomanip: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for iomanip" >&5
echo $ECHO_N "checking for iomanip... $ECHO_C" >&6
if test "${ac_cv_header_iomanip+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_iomanip=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iomanip" >&5
echo "${ECHO_T}$ac_cv_header_iomanip" >&6

fi
if test $ac_cv_header_iomanip = yes; then
  VCL_CXX_HAS_HEADER_IOMANIP=1
else
  VCL_CXX_HAS_HEADER_IOMANIP=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_list+set}" = set; then
  echo "$as_me:$LINENO: checking for list" >&5
echo $ECHO_N "checking for list... $ECHO_C" >&6
if test "${ac_cv_header_list+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_list" >&5
echo "${ECHO_T}$ac_cv_header_list" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking list usability" >&5
echo $ECHO_N "checking list usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <list>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking list presence" >&5
echo $ECHO_N "checking list presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <list>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: list: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: list: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: list: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: list: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: list: present but cannot be compiled" >&5
echo "$as_me: WARNING: list: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: list: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: list: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: list: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: list: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for list" >&5
echo $ECHO_N "checking for list... $ECHO_C" >&6
if test "${ac_cv_header_list+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_list=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_list" >&5
echo "${ECHO_T}$ac_cv_header_list" >&6

fi
if test $ac_cv_header_list = yes; then
  VCL_CXX_HAS_HEADER_LIST=1
else
  VCL_CXX_HAS_HEADER_LIST=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_ostream+set}" = set; then
  echo "$as_me:$LINENO: checking for ostream" >&5
echo $ECHO_N "checking for ostream... $ECHO_C" >&6
if test "${ac_cv_header_ostream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ostream" >&5
echo "${ECHO_T}$ac_cv_header_ostream" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking ostream usability" >&5
echo $ECHO_N "checking ostream usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <ostream>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking ostream presence" >&5
echo $ECHO_N "checking ostream presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ostream>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: ostream: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: ostream: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: ostream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ostream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: ostream: present but cannot be compiled" >&5
echo "$as_me: WARNING: ostream: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: ostream: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: ostream: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: ostream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ostream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for ostream" >&5
echo $ECHO_N "checking for ostream... $ECHO_C" >&6
if test "${ac_cv_header_ostream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_ostream=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ostream" >&5
echo "${ECHO_T}$ac_cv_header_ostream" >&6

fi
if test $ac_cv_header_ostream = yes; then
  VCL_CXX_HAS_HEADER_OSTREAM=1
else
  VCL_CXX_HAS_HEADER_OSTREAM=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_streambuf+set}" = set; then
  echo "$as_me:$LINENO: checking for streambuf" >&5
echo $ECHO_N "checking for streambuf... $ECHO_C" >&6
if test "${ac_cv_header_streambuf+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_streambuf" >&5
echo "${ECHO_T}$ac_cv_header_streambuf" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking streambuf usability" >&5
echo $ECHO_N "checking streambuf usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <streambuf>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking streambuf presence" >&5
echo $ECHO_N "checking streambuf presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <streambuf>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: streambuf: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: streambuf: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: streambuf: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: streambuf: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: streambuf: present but cannot be compiled" >&5
echo "$as_me: WARNING: streambuf: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: streambuf: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: streambuf: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: streambuf: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: streambuf: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for streambuf" >&5
echo $ECHO_N "checking for streambuf... $ECHO_C" >&6
if test "${ac_cv_header_streambuf+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_streambuf=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_streambuf" >&5
echo "${ECHO_T}$ac_cv_header_streambuf" >&6

fi
if test $ac_cv_header_streambuf = yes; then
  VCL_CXX_HAS_HEADER_STREAMBUF=1
else
  VCL_CXX_HAS_HEADER_STREAMBUF=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_bitset+set}" = set; then
  echo "$as_me:$LINENO: checking for bitset" >&5
echo $ECHO_N "checking for bitset... $ECHO_C" >&6
if test "${ac_cv_header_bitset+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_bitset" >&5
echo "${ECHO_T}$ac_cv_header_bitset" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking bitset usability" >&5
echo $ECHO_N "checking bitset usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <bitset>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking bitset presence" >&5
echo $ECHO_N "checking bitset presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <bitset>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: bitset: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: bitset: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: bitset: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: bitset: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: bitset: present but cannot be compiled" >&5
echo "$as_me: WARNING: bitset: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: bitset: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: bitset: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: bitset: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: bitset: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for bitset" >&5
echo $ECHO_N "checking for bitset... $ECHO_C" >&6
if test "${ac_cv_header_bitset+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_bitset=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_bitset" >&5
echo "${ECHO_T}$ac_cv_header_bitset" >&6

fi
if test $ac_cv_header_bitset = yes; then
  VCL_CXX_HAS_HEADER_BITSET=1
else
  VCL_CXX_HAS_HEADER_BITSET=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_ios+set}" = set; then
  echo "$as_me:$LINENO: checking for ios" >&5
echo $ECHO_N "checking for ios... $ECHO_C" >&6
if test "${ac_cv_header_ios+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ios" >&5
echo "${ECHO_T}$ac_cv_header_ios" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking ios usability" >&5
echo $ECHO_N "checking ios usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <ios>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking ios presence" >&5
echo $ECHO_N "checking ios presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ios>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: ios: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: ios: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: ios: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ios: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: ios: present but cannot be compiled" >&5
echo "$as_me: WARNING: ios: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: ios: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: ios: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: ios: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ios: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for ios" >&5
echo $ECHO_N "checking for ios... $ECHO_C" >&6
if test "${ac_cv_header_ios+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_ios=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ios" >&5
echo "${ECHO_T}$ac_cv_header_ios" >&6

fi
if test $ac_cv_header_ios = yes; then
  VCL_CXX_HAS_HEADER_IOS=1
else
  VCL_CXX_HAS_HEADER_IOS=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_locale+set}" = set; then
  echo "$as_me:$LINENO: checking for locale" >&5
echo $ECHO_N "checking for locale... $ECHO_C" >&6
if test "${ac_cv_header_locale+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_locale" >&5
echo "${ECHO_T}$ac_cv_header_locale" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking locale usability" >&5
echo $ECHO_N "checking locale usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <locale>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking locale presence" >&5
echo $ECHO_N "checking locale presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <locale>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: locale: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: locale: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: locale: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: locale: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: locale: present but cannot be compiled" >&5
echo "$as_me: WARNING: locale: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: locale: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: locale: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: locale: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: locale: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for locale" >&5
echo $ECHO_N "checking for locale... $ECHO_C" >&6
if test "${ac_cv_header_locale+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_locale=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_locale" >&5
echo "${ECHO_T}$ac_cv_header_locale" >&6

fi
if test $ac_cv_header_locale = yes; then
  VCL_CXX_HAS_HEADER_LOCALE=1
else
  VCL_CXX_HAS_HEADER_LOCALE=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_queue+set}" = set; then
  echo "$as_me:$LINENO: checking for queue" >&5
echo $ECHO_N "checking for queue... $ECHO_C" >&6
if test "${ac_cv_header_queue+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_queue" >&5
echo "${ECHO_T}$ac_cv_header_queue" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking queue usability" >&5
echo $ECHO_N "checking queue usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <queue>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking queue presence" >&5
echo $ECHO_N "checking queue presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <queue>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: queue: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: queue: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: queue: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: queue: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: queue: present but cannot be compiled" >&5
echo "$as_me: WARNING: queue: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: queue: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: queue: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: queue: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: queue: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for queue" >&5
echo $ECHO_N "checking for queue... $ECHO_C" >&6
if test "${ac_cv_header_queue+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_queue=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_queue" >&5
echo "${ECHO_T}$ac_cv_header_queue" >&6

fi
if test $ac_cv_header_queue = yes; then
  VCL_CXX_HAS_HEADER_QUEUE=1
else
  VCL_CXX_HAS_HEADER_QUEUE=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_string+set}" = set; then
  echo "$as_me:$LINENO: checking for string" >&5
echo $ECHO_N "checking for string... $ECHO_C" >&6
if test "${ac_cv_header_string+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_string" >&5
echo "${ECHO_T}$ac_cv_header_string" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking string usability" >&5
echo $ECHO_N "checking string usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <string>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking string presence" >&5
echo $ECHO_N "checking string presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <string>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: string: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: string: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: string: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: string: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: string: present but cannot be compiled" >&5
echo "$as_me: WARNING: string: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: string: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: string: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: string: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: string: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for string" >&5
echo $ECHO_N "checking for string... $ECHO_C" >&6
if test "${ac_cv_header_string+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_string=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_string" >&5
echo "${ECHO_T}$ac_cv_header_string" >&6

fi
if test $ac_cv_header_string = yes; then
  VCL_CXX_HAS_HEADER_STRING=1
else
  VCL_CXX_HAS_HEADER_STRING=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_complex+set}" = set; then
  echo "$as_me:$LINENO: checking for complex" >&5
echo $ECHO_N "checking for complex... $ECHO_C" >&6
if test "${ac_cv_header_complex+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_complex" >&5
echo "${ECHO_T}$ac_cv_header_complex" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking complex usability" >&5
echo $ECHO_N "checking complex usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <complex>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking complex presence" >&5
echo $ECHO_N "checking complex presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <complex>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: complex: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: complex: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: complex: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: complex: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: complex: present but cannot be compiled" >&5
echo "$as_me: WARNING: complex: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: complex: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: complex: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: complex: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: complex: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for complex" >&5
echo $ECHO_N "checking for complex... $ECHO_C" >&6
if test "${ac_cv_header_complex+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_complex=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_complex" >&5
echo "${ECHO_T}$ac_cv_header_complex" >&6

fi
if test $ac_cv_header_complex = yes; then
  VCL_CXX_HAS_HEADER_COMPLEX=1
else
  VCL_CXX_HAS_HEADER_COMPLEX=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_iosfwd+set}" = set; then
  echo "$as_me:$LINENO: checking for iosfwd" >&5
echo $ECHO_N "checking for iosfwd... $ECHO_C" >&6
if test "${ac_cv_header_iosfwd+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iosfwd" >&5
echo "${ECHO_T}$ac_cv_header_iosfwd" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking iosfwd usability" >&5
echo $ECHO_N "checking iosfwd usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <iosfwd>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking iosfwd presence" >&5
echo $ECHO_N "checking iosfwd presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <iosfwd>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: iosfwd: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: iosfwd: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: iosfwd: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iosfwd: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: iosfwd: present but cannot be compiled" >&5
echo "$as_me: WARNING: iosfwd: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: iosfwd: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: iosfwd: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: iosfwd: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iosfwd: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for iosfwd" >&5
echo $ECHO_N "checking for iosfwd... $ECHO_C" >&6
if test "${ac_cv_header_iosfwd+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_iosfwd=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iosfwd" >&5
echo "${ECHO_T}$ac_cv_header_iosfwd" >&6

fi
if test $ac_cv_header_iosfwd = yes; then
  VCL_CXX_HAS_HEADER_IOSFWD=1
else
  VCL_CXX_HAS_HEADER_IOSFWD=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_map+set}" = set; then
  echo "$as_me:$LINENO: checking for map" >&5
echo $ECHO_N "checking for map... $ECHO_C" >&6
if test "${ac_cv_header_map+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_map" >&5
echo "${ECHO_T}$ac_cv_header_map" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking map usability" >&5
echo $ECHO_N "checking map usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <map>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking map presence" >&5
echo $ECHO_N "checking map presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <map>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: map: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: map: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: map: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: map: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: map: present but cannot be compiled" >&5
echo "$as_me: WARNING: map: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: map: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: map: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: map: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: map: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for map" >&5
echo $ECHO_N "checking for map... $ECHO_C" >&6
if test "${ac_cv_header_map+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_map=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_map" >&5
echo "${ECHO_T}$ac_cv_header_map" >&6

fi
if test $ac_cv_header_map = yes; then
  VCL_CXX_HAS_HEADER_MAP=1
else
  VCL_CXX_HAS_HEADER_MAP=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_set+set}" = set; then
  echo "$as_me:$LINENO: checking for set" >&5
echo $ECHO_N "checking for set... $ECHO_C" >&6
if test "${ac_cv_header_set+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_set" >&5
echo "${ECHO_T}$ac_cv_header_set" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking set usability" >&5
echo $ECHO_N "checking set usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <set>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking set presence" >&5
echo $ECHO_N "checking set presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <set>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: set: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: set: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: set: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: set: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: set: present but cannot be compiled" >&5
echo "$as_me: WARNING: set: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: set: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: set: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: set: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: set: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for set" >&5
echo $ECHO_N "checking for set... $ECHO_C" >&6
if test "${ac_cv_header_set+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_set=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_set" >&5
echo "${ECHO_T}$ac_cv_header_set" >&6

fi
if test $ac_cv_header_set = yes; then
  VCL_CXX_HAS_HEADER_SET=1
else
  VCL_CXX_HAS_HEADER_SET=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_typeinfo+set}" = set; then
  echo "$as_me:$LINENO: checking for typeinfo" >&5
echo $ECHO_N "checking for typeinfo... $ECHO_C" >&6
if test "${ac_cv_header_typeinfo+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_typeinfo" >&5
echo "${ECHO_T}$ac_cv_header_typeinfo" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking typeinfo usability" >&5
echo $ECHO_N "checking typeinfo usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <typeinfo>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking typeinfo presence" >&5
echo $ECHO_N "checking typeinfo presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <typeinfo>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: typeinfo: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: typeinfo: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: typeinfo: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: typeinfo: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: typeinfo: present but cannot be compiled" >&5
echo "$as_me: WARNING: typeinfo: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: typeinfo: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: typeinfo: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: typeinfo: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: typeinfo: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for typeinfo" >&5
echo $ECHO_N "checking for typeinfo... $ECHO_C" >&6
if test "${ac_cv_header_typeinfo+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_typeinfo=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_typeinfo" >&5
echo "${ECHO_T}$ac_cv_header_typeinfo" >&6

fi
if test $ac_cv_header_typeinfo = yes; then
  VCL_CXX_HAS_HEADER_TYPEINFO=1
else
  VCL_CXX_HAS_HEADER_TYPEINFO=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_deque+set}" = set; then
  echo "$as_me:$LINENO: checking for deque" >&5
echo $ECHO_N "checking for deque... $ECHO_C" >&6
if test "${ac_cv_header_deque+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_deque" >&5
echo "${ECHO_T}$ac_cv_header_deque" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking deque usability" >&5
echo $ECHO_N "checking deque usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <deque>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking deque presence" >&5
echo $ECHO_N "checking deque presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <deque>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: deque: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: deque: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: deque: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: deque: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: deque: present but cannot be compiled" >&5
echo "$as_me: WARNING: deque: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: deque: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: deque: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: deque: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: deque: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for deque" >&5
echo $ECHO_N "checking for deque... $ECHO_C" >&6
if test "${ac_cv_header_deque+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_deque=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_deque" >&5
echo "${ECHO_T}$ac_cv_header_deque" >&6

fi
if test $ac_cv_header_deque = yes; then
  VCL_CXX_HAS_HEADER_DEQUE=1
else
  VCL_CXX_HAS_HEADER_DEQUE=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_iostream+set}" = set; then
  echo "$as_me:$LINENO: checking for iostream" >&5
echo $ECHO_N "checking for iostream... $ECHO_C" >&6
if test "${ac_cv_header_iostream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iostream" >&5
echo "${ECHO_T}$ac_cv_header_iostream" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking iostream usability" >&5
echo $ECHO_N "checking iostream usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <iostream>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking iostream presence" >&5
echo $ECHO_N "checking iostream presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <iostream>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: iostream: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: iostream: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: iostream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iostream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: iostream: present but cannot be compiled" >&5
echo "$as_me: WARNING: iostream: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: iostream: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: iostream: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: iostream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iostream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for iostream" >&5
echo $ECHO_N "checking for iostream... $ECHO_C" >&6
if test "${ac_cv_header_iostream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_iostream=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iostream" >&5
echo "${ECHO_T}$ac_cv_header_iostream" >&6

fi
if test $ac_cv_header_iostream = yes; then
  VCL_CXX_HAS_HEADER_IOSTREAM=1
else
  VCL_CXX_HAS_HEADER_IOSTREAM=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_memory+set}" = set; then
  echo "$as_me:$LINENO: checking for memory" >&5
echo $ECHO_N "checking for memory... $ECHO_C" >&6
if test "${ac_cv_header_memory+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_memory" >&5
echo "${ECHO_T}$ac_cv_header_memory" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking memory usability" >&5
echo $ECHO_N "checking memory usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <memory>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking memory presence" >&5
echo $ECHO_N "checking memory presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <memory>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: memory: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: memory: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: memory: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: memory: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: memory: present but cannot be compiled" >&5
echo "$as_me: WARNING: memory: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: memory: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: memory: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: memory: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: memory: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for memory" >&5
echo $ECHO_N "checking for memory... $ECHO_C" >&6
if test "${ac_cv_header_memory+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_memory=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_memory" >&5
echo "${ECHO_T}$ac_cv_header_memory" >&6

fi
if test $ac_cv_header_memory = yes; then
  VCL_CXX_HAS_HEADER_MEMORY=1
else
  VCL_CXX_HAS_HEADER_MEMORY=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_sstream+set}" = set; then
  echo "$as_me:$LINENO: checking for sstream" >&5
echo $ECHO_N "checking for sstream... $ECHO_C" >&6
if test "${ac_cv_header_sstream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sstream" >&5
echo "${ECHO_T}$ac_cv_header_sstream" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking sstream usability" >&5
echo $ECHO_N "checking sstream usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <sstream>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking sstream presence" >&5
echo $ECHO_N "checking sstream presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <sstream>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: sstream: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: sstream: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: sstream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: sstream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: sstream: present but cannot be compiled" >&5
echo "$as_me: WARNING: sstream: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: sstream: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: sstream: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: sstream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: sstream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for sstream" >&5
echo $ECHO_N "checking for sstream... $ECHO_C" >&6
if test "${ac_cv_header_sstream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_sstream=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_sstream" >&5
echo "${ECHO_T}$ac_cv_header_sstream" >&6

fi
if test $ac_cv_header_sstream = yes; then
  VCL_CXX_HAS_HEADER_SSTREAM=1
else
  VCL_CXX_HAS_HEADER_SSTREAM=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_utility+set}" = set; then
  echo "$as_me:$LINENO: checking for utility" >&5
echo $ECHO_N "checking for utility... $ECHO_C" >&6
if test "${ac_cv_header_utility+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_utility" >&5
echo "${ECHO_T}$ac_cv_header_utility" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking utility usability" >&5
echo $ECHO_N "checking utility usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <utility>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking utility presence" >&5
echo $ECHO_N "checking utility presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <utility>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: utility: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: utility: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: utility: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: utility: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: utility: present but cannot be compiled" >&5
echo "$as_me: WARNING: utility: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: utility: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: utility: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: utility: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: utility: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for utility" >&5
echo $ECHO_N "checking for utility... $ECHO_C" >&6
if test "${ac_cv_header_utility+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_utility=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_utility" >&5
echo "${ECHO_T}$ac_cv_header_utility" >&6

fi
if test $ac_cv_header_utility = yes; then
  VCL_CXX_HAS_HEADER_UTILITY=1
else
  VCL_CXX_HAS_HEADER_UTILITY=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_exception+set}" = set; then
  echo "$as_me:$LINENO: checking for exception" >&5
echo $ECHO_N "checking for exception... $ECHO_C" >&6
if test "${ac_cv_header_exception+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_exception" >&5
echo "${ECHO_T}$ac_cv_header_exception" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking exception usability" >&5
echo $ECHO_N "checking exception usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <exception>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking exception presence" >&5
echo $ECHO_N "checking exception presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <exception>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: exception: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: exception: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: exception: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: exception: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: exception: present but cannot be compiled" >&5
echo "$as_me: WARNING: exception: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: exception: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: exception: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: exception: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: exception: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for exception" >&5
echo $ECHO_N "checking for exception... $ECHO_C" >&6
if test "${ac_cv_header_exception+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_exception=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_exception" >&5
echo "${ECHO_T}$ac_cv_header_exception" >&6

fi
if test $ac_cv_header_exception = yes; then
  VCL_CXX_HAS_HEADER_EXCEPTION=1
else
  VCL_CXX_HAS_HEADER_EXCEPTION=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_istream+set}" = set; then
  echo "$as_me:$LINENO: checking for istream" >&5
echo $ECHO_N "checking for istream... $ECHO_C" >&6
if test "${ac_cv_header_istream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_istream" >&5
echo "${ECHO_T}$ac_cv_header_istream" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking istream usability" >&5
echo $ECHO_N "checking istream usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <istream>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking istream presence" >&5
echo $ECHO_N "checking istream presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <istream>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: istream: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: istream: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: istream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: istream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: istream: present but cannot be compiled" >&5
echo "$as_me: WARNING: istream: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: istream: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: istream: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: istream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: istream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for istream" >&5
echo $ECHO_N "checking for istream... $ECHO_C" >&6
if test "${ac_cv_header_istream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_istream=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_istream" >&5
echo "${ECHO_T}$ac_cv_header_istream" >&6

fi
if test $ac_cv_header_istream = yes; then
  VCL_CXX_HAS_HEADER_ISTREAM=1
else
  VCL_CXX_HAS_HEADER_ISTREAM=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_new+set}" = set; then
  echo "$as_me:$LINENO: checking for new" >&5
echo $ECHO_N "checking for new... $ECHO_C" >&6
if test "${ac_cv_header_new+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_new" >&5
echo "${ECHO_T}$ac_cv_header_new" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking new usability" >&5
echo $ECHO_N "checking new usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <new>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking new presence" >&5
echo $ECHO_N "checking new presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <new>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: new: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: new: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: new: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: new: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: new: present but cannot be compiled" >&5
echo "$as_me: WARNING: new: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: new: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: new: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: new: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: new: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for new" >&5
echo $ECHO_N "checking for new... $ECHO_C" >&6
if test "${ac_cv_header_new+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_new=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_new" >&5
echo "${ECHO_T}$ac_cv_header_new" >&6

fi
if test $ac_cv_header_new = yes; then
  VCL_CXX_HAS_HEADER_NEW=1
else
  VCL_CXX_HAS_HEADER_NEW=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_stack+set}" = set; then
  echo "$as_me:$LINENO: checking for stack" >&5
echo $ECHO_N "checking for stack... $ECHO_C" >&6
if test "${ac_cv_header_stack+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_stack" >&5
echo "${ECHO_T}$ac_cv_header_stack" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking stack usability" >&5
echo $ECHO_N "checking stack usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <stack>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking stack presence" >&5
echo $ECHO_N "checking stack presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stack>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: stack: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: stack: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: stack: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: stack: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: stack: present but cannot be compiled" >&5
echo "$as_me: WARNING: stack: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: stack: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: stack: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: stack: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: stack: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for stack" >&5
echo $ECHO_N "checking for stack... $ECHO_C" >&6
if test "${ac_cv_header_stack+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_stack=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_stack" >&5
echo "${ECHO_T}$ac_cv_header_stack" >&6

fi
if test $ac_cv_header_stack = yes; then
  VCL_CXX_HAS_HEADER_STACK=1
else
  VCL_CXX_HAS_HEADER_STACK=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_valarray+set}" = set; then
  echo "$as_me:$LINENO: checking for valarray" >&5
echo $ECHO_N "checking for valarray... $ECHO_C" >&6
if test "${ac_cv_header_valarray+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_valarray" >&5
echo "${ECHO_T}$ac_cv_header_valarray" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking valarray usability" >&5
echo $ECHO_N "checking valarray usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <valarray>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking valarray presence" >&5
echo $ECHO_N "checking valarray presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <valarray>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: valarray: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: valarray: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: valarray: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: valarray: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: valarray: present but cannot be compiled" >&5
echo "$as_me: WARNING: valarray: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: valarray: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: valarray: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: valarray: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: valarray: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for valarray" >&5
echo $ECHO_N "checking for valarray... $ECHO_C" >&6
if test "${ac_cv_header_valarray+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_valarray=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_valarray" >&5
echo "${ECHO_T}$ac_cv_header_valarray" >&6

fi
if test $ac_cv_header_valarray = yes; then
  VCL_CXX_HAS_HEADER_VALARRAY=1
else
  VCL_CXX_HAS_HEADER_VALARRAY=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_fstream+set}" = set; then
  echo "$as_me:$LINENO: checking for fstream" >&5
echo $ECHO_N "checking for fstream... $ECHO_C" >&6
if test "${ac_cv_header_fstream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_fstream" >&5
echo "${ECHO_T}$ac_cv_header_fstream" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking fstream usability" >&5
echo $ECHO_N "checking fstream usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <fstream>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking fstream presence" >&5
echo $ECHO_N "checking fstream presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <fstream>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: fstream: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: fstream: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: fstream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: fstream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: fstream: present but cannot be compiled" >&5
echo "$as_me: WARNING: fstream: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: fstream: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: fstream: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: fstream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: fstream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for fstream" >&5
echo $ECHO_N "checking for fstream... $ECHO_C" >&6
if test "${ac_cv_header_fstream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_fstream=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_fstream" >&5
echo "${ECHO_T}$ac_cv_header_fstream" >&6

fi
if test $ac_cv_header_fstream = yes; then
  VCL_CXX_HAS_HEADER_FSTREAM=1
else
  VCL_CXX_HAS_HEADER_FSTREAM=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_iterator+set}" = set; then
  echo "$as_me:$LINENO: checking for iterator" >&5
echo $ECHO_N "checking for iterator... $ECHO_C" >&6
if test "${ac_cv_header_iterator+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iterator" >&5
echo "${ECHO_T}$ac_cv_header_iterator" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking iterator usability" >&5
echo $ECHO_N "checking iterator usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <iterator>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking iterator presence" >&5
echo $ECHO_N "checking iterator presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <iterator>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: iterator: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: iterator: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: iterator: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iterator: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: iterator: present but cannot be compiled" >&5
echo "$as_me: WARNING: iterator: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: iterator: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: iterator: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: iterator: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iterator: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for iterator" >&5
echo $ECHO_N "checking for iterator... $ECHO_C" >&6
if test "${ac_cv_header_iterator+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_iterator=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iterator" >&5
echo "${ECHO_T}$ac_cv_header_iterator" >&6

fi
if test $ac_cv_header_iterator = yes; then
  VCL_CXX_HAS_HEADER_ITERATOR=1
else
  VCL_CXX_HAS_HEADER_ITERATOR=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_numeric+set}" = set; then
  echo "$as_me:$LINENO: checking for numeric" >&5
echo $ECHO_N "checking for numeric... $ECHO_C" >&6
if test "${ac_cv_header_numeric+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_numeric" >&5
echo "${ECHO_T}$ac_cv_header_numeric" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking numeric usability" >&5
echo $ECHO_N "checking numeric usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <numeric>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking numeric presence" >&5
echo $ECHO_N "checking numeric presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <numeric>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: numeric: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: numeric: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: numeric: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: numeric: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: numeric: present but cannot be compiled" >&5
echo "$as_me: WARNING: numeric: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: numeric: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: numeric: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: numeric: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: numeric: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for numeric" >&5
echo $ECHO_N "checking for numeric... $ECHO_C" >&6
if test "${ac_cv_header_numeric+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_numeric=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_numeric" >&5
echo "${ECHO_T}$ac_cv_header_numeric" >&6

fi
if test $ac_cv_header_numeric = yes; then
  VCL_CXX_HAS_HEADER_NUMERIC=1
else
  VCL_CXX_HAS_HEADER_NUMERIC=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_stdexcept+set}" = set; then
  echo "$as_me:$LINENO: checking for stdexcept" >&5
echo $ECHO_N "checking for stdexcept... $ECHO_C" >&6
if test "${ac_cv_header_stdexcept+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_stdexcept" >&5
echo "${ECHO_T}$ac_cv_header_stdexcept" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking stdexcept usability" >&5
echo $ECHO_N "checking stdexcept usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <stdexcept>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking stdexcept presence" >&5
echo $ECHO_N "checking stdexcept presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stdexcept>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: stdexcept: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: stdexcept: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: stdexcept: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: stdexcept: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: stdexcept: present but cannot be compiled" >&5
echo "$as_me: WARNING: stdexcept: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: stdexcept: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: stdexcept: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: stdexcept: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: stdexcept: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for stdexcept" >&5
echo $ECHO_N "checking for stdexcept... $ECHO_C" >&6
if test "${ac_cv_header_stdexcept+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_stdexcept=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_stdexcept" >&5
echo "${ECHO_T}$ac_cv_header_stdexcept" >&6

fi
if test $ac_cv_header_stdexcept = yes; then
  VCL_CXX_HAS_HEADER_STDEXCEPT=1
else
  VCL_CXX_HAS_HEADER_STDEXCEPT=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_vector+set}" = set; then
  echo "$as_me:$LINENO: checking for vector" >&5
echo $ECHO_N "checking for vector... $ECHO_C" >&6
if test "${ac_cv_header_vector+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_vector" >&5
echo "${ECHO_T}$ac_cv_header_vector" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking vector usability" >&5
echo $ECHO_N "checking vector usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <vector>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking vector presence" >&5
echo $ECHO_N "checking vector presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <vector>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: vector: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: vector: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: vector: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: vector: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: vector: present but cannot be compiled" >&5
echo "$as_me: WARNING: vector: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: vector: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: vector: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: vector: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: vector: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for vector" >&5
echo $ECHO_N "checking for vector... $ECHO_C" >&6
if test "${ac_cv_header_vector+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_vector=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_vector" >&5
echo "${ECHO_T}$ac_cv_header_vector" >&6

fi
if test $ac_cv_header_vector = yes; then
  VCL_CXX_HAS_HEADER_VECTOR=1
else
  VCL_CXX_HAS_HEADER_VECTOR=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_functional+set}" = set; then
  echo "$as_me:$LINENO: checking for functional" >&5
echo $ECHO_N "checking for functional... $ECHO_C" >&6
if test "${ac_cv_header_functional+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_functional" >&5
echo "${ECHO_T}$ac_cv_header_functional" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking functional usability" >&5
echo $ECHO_N "checking functional usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <functional>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking functional presence" >&5
echo $ECHO_N "checking functional presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <functional>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: functional: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: functional: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: functional: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: functional: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: functional: present but cannot be compiled" >&5
echo "$as_me: WARNING: functional: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: functional: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: functional: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: functional: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: functional: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for functional" >&5
echo $ECHO_N "checking for functional... $ECHO_C" >&6
if test "${ac_cv_header_functional+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_functional=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_functional" >&5
echo "${ECHO_T}$ac_cv_header_functional" >&6

fi
if test $ac_cv_header_functional = yes; then
  VCL_CXX_HAS_HEADER_FUNCTIONAL=1
else
  VCL_CXX_HAS_HEADER_FUNCTIONAL=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_limits+set}" = set; then
  echo "$as_me:$LINENO: checking for limits" >&5
echo $ECHO_N "checking for limits... $ECHO_C" >&6
if test "${ac_cv_header_limits+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_limits" >&5
echo "${ECHO_T}$ac_cv_header_limits" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking limits usability" >&5
echo $ECHO_N "checking limits usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <limits>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking limits presence" >&5
echo $ECHO_N "checking limits presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <limits>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: limits: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: limits: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: limits: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: limits: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: limits: present but cannot be compiled" >&5
echo "$as_me: WARNING: limits: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: limits: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: limits: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: limits: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: limits: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for limits" >&5
echo $ECHO_N "checking for limits... $ECHO_C" >&6
if test "${ac_cv_header_limits+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_limits=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_limits" >&5
echo "${ECHO_T}$ac_cv_header_limits" >&6

fi
if test $ac_cv_header_limits = yes; then
  VCL_CXX_HAS_HEADER_LIMITS=1
else
  VCL_CXX_HAS_HEADER_LIMITS=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test "${ac_cv_header_strstream+set}" = set; then
  echo "$as_me:$LINENO: checking for strstream" >&5
echo $ECHO_N "checking for strstream... $ECHO_C" >&6
if test "${ac_cv_header_strstream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_strstream" >&5
echo "${ECHO_T}$ac_cv_header_strstream" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking strstream usability" >&5
echo $ECHO_N "checking strstream usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <strstream>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking strstream presence" >&5
echo $ECHO_N "checking strstream presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <strstream>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_cxx_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: strstream: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: strstream: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: strstream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: strstream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: strstream: present but cannot be compiled" >&5
echo "$as_me: WARNING: strstream: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: strstream: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: strstream: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: strstream: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: strstream: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for strstream" >&5
echo $ECHO_N "checking for strstream... $ECHO_C" >&6
if test "${ac_cv_header_strstream+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_strstream=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_strstream" >&5
echo "${ECHO_T}$ac_cv_header_strstream" >&6

fi
if test $ac_cv_header_strstream = yes; then
  VCL_CXX_HAS_HEADER_STRSTREAM=1
else
  VCL_CXX_HAS_HEADER_STRSTREAM=0
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

#--------------------------------------------------------------------------------
# SUBSTITUTIONS

# manual
# compiler
#
#
#
# standard header files.

# from vxl/configure.in

# fsm. after running glimpse, I can't find anywhere but
# vxl/vbl/vbl_timer.cxx which uses TWO_ARG_GETTIME. Can someone
# confirm that?
# If so, that would mean we can remove the makefile -D flags
# to do with time.
if test "$ac_twoarg_timeofday" = "yes"; then
  VXL_TWO_ARG_GETTIME=1
else
  VXL_TWO_ARG_GETTIME=0
fi

# fsm
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
  if test "${ac_cv_prog_CPP+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
      # Double quotes because CPP needs to be expanded
    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
                     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  break
fi

    done
    ac_cv_prog_CPP=$CPP
fi
  CPP=$ac_cv_prog_CPP
else
  ac_cv_prog_CPP=$CPP
fi
echo "$as_me:$LINENO: result: $CPP" >&5
echo "${ECHO_T}$CPP" >&6
ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
                     Syntax error
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  :
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.$ac_ext

  # OK, works on sane cases.  Now check whether non-existent headers
  # can be detected and how.
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ac_nonexistent.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  # Broken: success on invalid input.
continue
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.err conftest.$ac_ext
if $ac_preproc_ok; then
  :
else
  { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details." >&5
echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details." >&2;}
   { (exit 1); exit 1; }; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

if test "${ac_cv_header_pthread_h+set}" = set; then
  echo "$as_me:$LINENO: checking for pthread.h" >&5
echo $ECHO_N "checking for pthread.h... $ECHO_C" >&6
if test "${ac_cv_header_pthread_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_pthread_h" >&5
echo "${ECHO_T}$ac_cv_header_pthread_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking pthread.h usability" >&5
echo $ECHO_N "checking pthread.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <pthread.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking pthread.h presence" >&5
echo $ECHO_N "checking pthread.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <pthread.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: pthread.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: pthread.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: pthread.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: pthread.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: pthread.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: pthread.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: pthread.h: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: pthread.h: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: pthread.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: pthread.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for pthread.h" >&5
echo $ECHO_N "checking for pthread.h... $ECHO_C" >&6
if test "${ac_cv_header_pthread_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_pthread_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_pthread_h" >&5
echo "${ECHO_T}$ac_cv_header_pthread_h" >&6

fi
if test $ac_cv_header_pthread_h = yes; then
  VXL_HAS_PTHREAD_H=1
else
  VXL_HAS_PTHREAD_H=0
fi

if test "${ac_cv_header_semaphore_h+set}" = set; then
  echo "$as_me:$LINENO: checking for semaphore.h" >&5
echo $ECHO_N "checking for semaphore.h... $ECHO_C" >&6
if test "${ac_cv_header_semaphore_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_semaphore_h" >&5
echo "${ECHO_T}$ac_cv_header_semaphore_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking semaphore.h usability" >&5
echo $ECHO_N "checking semaphore.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <semaphore.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking semaphore.h presence" >&5
echo $ECHO_N "checking semaphore.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <semaphore.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: semaphore.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: semaphore.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: semaphore.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: semaphore.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: semaphore.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: semaphore.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: semaphore.h: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: semaphore.h: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: semaphore.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: semaphore.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for semaphore.h" >&5
echo $ECHO_N "checking for semaphore.h... $ECHO_C" >&6
if test "${ac_cv_header_semaphore_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_semaphore_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_semaphore_h" >&5
echo "${ECHO_T}$ac_cv_header_semaphore_h" >&6

fi
if test $ac_cv_header_semaphore_h = yes; then
  VXL_HAS_SEMAPHORE_H=1
else
  VXL_HAS_SEMAPHORE_H=0
fi

echo "checking <unistd.h>..."

# first get preprocessed unistd.h :
cat > check_vxl_unistd.c <<EOF
#include <unistd.h>
EOF
eval "$ac_cpp check_vxl_unistd.c" 2>&5 > check_vxl_unistd.i;

# caveat: sometimes __useconds_t is defined, hence the space
if (egrep "typedef.* useconds_t;" check_vxl_unistd.i >/dev/null 2>&1); then
  VXL_UNISTD_HAS_USECONDS_T=1;
  echo "... for useconds_t... yes"
else
  VXL_UNISTD_HAS_USECONDS_T=0;
  echo "... for useconds_t... no"
fi; export VXL_UNISTD_HAS_USECONDS_T;

# caveat: sometimes __intptr_t is defined, hence the space
if (egrep "typedef.* intptr_t;" check_vxl_unistd.i >/dev/null 2>&1); then
  VXL_UNISTD_HAS_INTPTR_T=1;
  echo "... for intptr_t... yes"
else
  VXL_UNISTD_HAS_INTPTR_T=0;
  echo "... for intptr_t... no"
fi; export VXL_UNISTD_HAS_INTPTR_T;

echo "... if usleep() returns void"
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <unistd.h>
int main() { int x = usleep(0); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VXL_UNISTD_USLEEP_IS_VOID=0;
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VXL_UNISTD_USLEEP_IS_VOID=1;
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VXL_UNISTD_USLEEP_IS_VOID;

rm -f check_vxl_unistd.c check_vxl_unistd.i
echo "$as_me:$LINENO: checking for ualarm" >&5
echo $ECHO_N "checking for ualarm... $ECHO_C" >&6
if test "${ac_cv_func_ualarm+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char ualarm (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char ualarm ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_ualarm) || defined (__stub___ualarm)
choke me
#else
char (*f) () = ualarm;
#endif
#ifdef __cplusplus
}
#endif
int main() { return f != ualarm; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_ualarm=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_ualarm=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_ualarm" >&5
echo "${ECHO_T}$ac_cv_func_ualarm" >&6
if test $ac_cv_func_ualarm = yes; then
  VXL_UNISTD_HAS_UALARM=1
else
  VXL_UNISTD_HAS_UALARM=0
fi

echo "$as_me:$LINENO: checking for usleep" >&5
echo $ECHO_N "checking for usleep... $ECHO_C" >&6
if test "${ac_cv_func_usleep+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char usleep (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char usleep ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_usleep) || defined (__stub___usleep)
choke me
#else
char (*f) () = usleep;
#endif
#ifdef __cplusplus
}
#endif
int main() { return f != usleep; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_usleep=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_usleep=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_usleep" >&5
echo "${ECHO_T}$ac_cv_func_usleep" >&6
if test $ac_cv_func_usleep = yes; then
  VXL_UNISTD_HAS_USLEEP=1
else
  VXL_UNISTD_HAS_USLEEP=0
fi

echo "$as_me:$LINENO: checking for lchown" >&5
echo $ECHO_N "checking for lchown... $ECHO_C" >&6
if test "${ac_cv_func_lchown+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char lchown (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char lchown ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_lchown) || defined (__stub___lchown)
choke me
#else
char (*f) () = lchown;
#endif
#ifdef __cplusplus
}
#endif
int main() { return f != lchown; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_lchown=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_lchown=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_lchown" >&5
echo "${ECHO_T}$ac_cv_func_lchown" >&6
if test $ac_cv_func_lchown = yes; then
  VXL_UNISTD_HAS_LCHOWN=1
else
  VXL_UNISTD_HAS_LCHOWN=0
fi

echo "$as_me:$LINENO: checking for pread" >&5
echo $ECHO_N "checking for pread... $ECHO_C" >&6
if test "${ac_cv_func_pread+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char pread (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char pread ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_pread) || defined (__stub___pread)
choke me
#else
char (*f) () = pread;
#endif
#ifdef __cplusplus
}
#endif
int main() { return f != pread; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_pread=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_pread=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_pread" >&5
echo "${ECHO_T}$ac_cv_func_pread" >&6
if test $ac_cv_func_pread = yes; then
  VXL_UNISTD_HAS_PREAD=1
else
  VXL_UNISTD_HAS_PREAD=0
fi

echo "$as_me:$LINENO: checking for pwrite" >&5
echo $ECHO_N "checking for pwrite... $ECHO_C" >&6
if test "${ac_cv_func_pwrite+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char pwrite (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char pwrite ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_pwrite) || defined (__stub___pwrite)
choke me
#else
char (*f) () = pwrite;
#endif
#ifdef __cplusplus
}
#endif
int main() { return f != pwrite; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_pwrite=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_pwrite=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_pwrite" >&5
echo "${ECHO_T}$ac_cv_func_pwrite" >&6
if test $ac_cv_func_pwrite = yes; then
  VXL_UNISTD_HAS_PWRITE=1
else
  VXL_UNISTD_HAS_PWRITE=0
fi

echo "$as_me:$LINENO: checking for tell" >&5
echo $ECHO_N "checking for tell... $ECHO_C" >&6
if test "${ac_cv_func_tell+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char tell (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
{
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char tell ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_tell) || defined (__stub___tell)
choke me
#else
char (*f) () = tell;
#endif
#ifdef __cplusplus
}
#endif
int main() { return f != tell; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_func_tell=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_func_tell=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_tell" >&5
echo "${ECHO_T}$ac_cv_func_tell" >&6
if test $ac_cv_func_tell = yes; then
  VXL_UNISTD_HAS_TELL=1
else
  VXL_UNISTD_HAS_TELL=0
fi

echo "$as_me:$LINENO: checking for machine word sizes " >&5
echo $ECHO_N "checking for machine word sizes ... $ECHO_C" >&6
cat > check_vxl_words.cc <<EOF
#include <stdio.h>
#include <limits.h>
#ifndef CHAR_BIT
# define CHAR_BIT 8
#endif

// this is a silly workaround. on most machines, the configure
// script will cat the 2-character sequence \" as a 2-character
// sequence. however, julia@robots.ox.ac.uk "expands it" to a
// single quote character first. the obvious solution, which is
// to add extra backslashes will fix it for julia, but break it
// for other machines. so to print a quote, we use its ascii
// value.
// note that the backslashes in the macro 'macro' are expanded
// by configure, but we dont care about that.
#define QUOTE 34

#define macro(NAME, n, cand, cnd2) \
  if (CHAR_BIT==8 && sizeof(cnd2)==n) \
    printf("VXL_" #NAME "=%c" #cnd2 "%c;\nVXL_HAS_" #NAME "=%c1%c;\n" , QUOTE, QUOTE, QUOTE, QUOTE); \
  else if (CHAR_BIT==8 && sizeof(cand)==n) \
    printf("VXL_" #NAME "=%c" #cand "%c;\nVXL_HAS_" #NAME "=%c1%c;\n" , QUOTE, QUOTE, QUOTE, QUOTE); \
  else \
    printf("VXL_" #NAME "=%c" "void" "%c;\nVXL_HAS_" #NAME "=%c0%c;\n" , QUOTE, QUOTE, QUOTE, QUOTE); \
  printf("export VXL_" #NAME ";\nexport VXL_HAS_" #NAME ";\n" )
int main(int, char **) {
  macro(BYTE, 1, char, char);
  macro(INT_8, 1, char, short);
  macro(INT_16, 2, short, int);
  macro(INT_32, 4, long, int);
  macro(INT_64, 8, long long, long);
  macro(IEEE_32, 4, double, float);
  macro(IEEE_64, 8, long double, double);
  macro(IEEE_96, 12, long double, double);  // x86
  macro(IEEE_128, 16, long double, double); // sparc, mips
  if (sizeof(long)==8)
    printf("VXL_INT_64_IS_LONG=1;\n");
  else
    printf("VXL_INT_64_IS_LONG=0;\n");
  return 0;
}
EOF
if eval "$CXX ./check_vxl_words.cc -o ./check_vxl_words.exe" 2>&5; then
  eval `./check_vxl_words.exe` 2>&5
  echo "$as_me:$LINENO: result: ok " >&5
echo "${ECHO_T}ok " >&6
else
  echo "$as_me:$LINENO: result: error " >&5
echo "${ECHO_T}error " >&6
fi
rm -f ./check_vxl_words.*

if test "${ac_cv_header_ieeefp_h+set}" = set; then
  echo "$as_me:$LINENO: checking for ieeefp.h" >&5
echo $ECHO_N "checking for ieeefp.h... $ECHO_C" >&6
if test "${ac_cv_header_ieeefp_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ieeefp_h" >&5
echo "${ECHO_T}$ac_cv_header_ieeefp_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking ieeefp.h usability" >&5
echo $ECHO_N "checking ieeefp.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <ieeefp.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking ieeefp.h presence" >&5
echo $ECHO_N "checking ieeefp.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <ieeefp.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: ieeefp.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: ieeefp.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: ieeefp.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ieeefp.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: ieeefp.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: ieeefp.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: ieeefp.h: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: ieeefp.h: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: ieeefp.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: ieeefp.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for ieeefp.h" >&5
echo $ECHO_N "checking for ieeefp.h... $ECHO_C" >&6
if test "${ac_cv_header_ieeefp_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_ieeefp_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_ieeefp_h" >&5
echo "${ECHO_T}$ac_cv_header_ieeefp_h" >&6

fi
if test $ac_cv_header_ieeefp_h = yes; then
  VXL_HAS_IEEEFP_H=1
else
  VXL_HAS_IEEEFP_H=0
fi

if test "${ac_cv_header_iso646_h+set}" = set; then
  echo "$as_me:$LINENO: checking for iso646.h" >&5
echo $ECHO_N "checking for iso646.h... $ECHO_C" >&6
if test "${ac_cv_header_iso646_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iso646_h" >&5
echo "${ECHO_T}$ac_cv_header_iso646_h" >&6
else
  # Is the header compilable?
echo "$as_me:$LINENO: checking iso646.h usability" >&5
echo $ECHO_N "checking iso646.h usability... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
$ac_includes_default
#include <iso646.h>
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_header_compiler=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_header_compiler=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
echo "${ECHO_T}$ac_header_compiler" >&6

# Is the header present?
echo "$as_me:$LINENO: checking iso646.h presence" >&5
echo $ECHO_N "checking iso646.h presence... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <iso646.h>
_ACEOF
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } >/dev/null; then
  if test -s conftest.err; then
    ac_cpp_err=$ac_c_preproc_warn_flag
  else
    ac_cpp_err=
  fi
else
  ac_cpp_err=yes
fi
if test -z "$ac_cpp_err"; then
  ac_header_preproc=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  ac_header_preproc=no
fi
rm -f conftest.err conftest.$ac_ext
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
echo "${ECHO_T}$ac_header_preproc" >&6

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc in
  yes:no )
    { echo "$as_me:$LINENO: WARNING: iso646.h: accepted by the compiler, rejected by the preprocessor!" >&5
echo "$as_me: WARNING: iso646.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { echo "$as_me:$LINENO: WARNING: iso646.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iso646.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
  no:yes )
    { echo "$as_me:$LINENO: WARNING: iso646.h: present but cannot be compiled" >&5
echo "$as_me: WARNING: iso646.h: present but cannot be compiled" >&2;}
    { echo "$as_me:$LINENO: WARNING: iso646.h: check for missing prerequisite headers?" >&5
echo "$as_me: WARNING: iso646.h: check for missing prerequisite headers?" >&2;}
    { echo "$as_me:$LINENO: WARNING: iso646.h: proceeding with the preprocessor's result" >&5
echo "$as_me: WARNING: iso646.h: proceeding with the preprocessor's result" >&2;}
    (
      cat <<\_ASBOX
## ------------------------------------ ##
## Report this to bug-autoconf@gnu.org. ##
## ------------------------------------ ##
_ASBOX
    ) |
      sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
echo "$as_me:$LINENO: checking for iso646.h" >&5
echo $ECHO_N "checking for iso646.h... $ECHO_C" >&6
if test "${ac_cv_header_iso646_h+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_cv_header_iso646_h=$ac_header_preproc
fi
echo "$as_me:$LINENO: result: $ac_cv_header_iso646_h" >&5
echo "${ECHO_T}$ac_cv_header_iso646_h" >&6

fi
if test $ac_cv_header_iso646_h = yes; then
  VCL_CXX_HAS_HEADER_ISO646_H=1
else
  VCL_CXX_HAS_HEADER_ISO646_H=0
fi

# these math functions are probably defined in libm, so make sure the
# library can be found before trying to link against it.

echo "$as_me:$LINENO: checking for cos in -lm" >&5
echo $ECHO_N "checking for cos in -lm... $ECHO_C" >&6
if test "${ac_cv_lib_m_cos+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lm  $LIBS"
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* Override any gcc2 internal prototype to avoid an error.  */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char cos();
int main() { cos(); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_lib_m_cos=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_lib_m_cos=no
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_m_cos" >&5
echo "${ECHO_T}$ac_cv_lib_m_cos" >&6
if test $ac_cv_lib_m_cos = yes; then
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBM 1
_ACEOF

  LIBS="-lm $LIBS"
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  echo "$as_me:$LINENO: checking whether <math.h> provides finite()" >&5
echo $ECHO_N "checking whether <math.h> provides finite()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <math.h>
int main() { finitef(4.0f); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_C_MATH_HAS_FINITEF=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_C_MATH_HAS_FINITEF=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  echo "$as_me:$LINENO: checking whether <math.h> provides finite()" >&5
echo $ECHO_N "checking whether <math.h> provides finite()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <math.h>
int main() { finite(4.0); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_C_MATH_HAS_FINITE=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_C_MATH_HAS_FINITE=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  echo "$as_me:$LINENO: checking whether <math.h> provides finite()" >&5
echo $ECHO_N "checking whether <math.h> provides finite()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <math.h>
int main() { finitel((long double)4); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_C_MATH_HAS_FINITEL=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_C_MATH_HAS_FINITEL=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  echo "$as_me:$LINENO: checking whether <math.h> provides sqrtf()" >&5
echo $ECHO_N "checking whether <math.h> provides sqrtf()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <math.h>
int main() { sqrtf(4.0); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_C_MATH_HAS_SQRTF=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_C_MATH_HAS_SQRTF=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  echo "$as_me:$LINENO: checking whether <ieeefp.h> provides finite()" >&5
echo $ECHO_N "checking whether <ieeefp.h> provides finite()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <ieeefp.h>
int main() { finite(4.0); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_IEEEFP_HAS_FINITE=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_IEEEFP_HAS_FINITE=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  echo "$as_me:$LINENO: checking whether <stdlib.h> provides lrand48()" >&5
echo $ECHO_N "checking whether <stdlib.h> provides lrand48()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <stdlib.h>
int main() { lrand48(); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_STDLIB_HAS_LRAND48=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_STDLIB_HAS_LRAND48=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

  echo "$as_me:$LINENO: checking whether <stdlib.h> provides drand48()" >&5
echo $ECHO_N "checking whether <stdlib.h> provides drand48()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <stdlib.h>
int main() { drand48(); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_STDLIB_HAS_DRAND48=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_STDLIB_HAS_DRAND48=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6

fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

  echo "$as_me:$LINENO: checking whether <stdlib.h> provides srand48()" >&5
echo $ECHO_N "checking whether <stdlib.h> provides srand48()... $ECHO_C" >&6
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
  #include <stdlib.h>
int main() { srand48(0L); return 0; }
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then

  VXL_STDLIB_HAS_SRAND48=1
  echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6

else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

  VXL_STDLIB_HAS_SRAND48=0
  echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6

fi
rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

echo "$as_me:$LINENO: checking whether we have a working qsort" >&5
echo $ECHO_N "checking whether we have a working qsort... $ECHO_C" >&6

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <stdlib.h>
int f(const void *a,const void *b) { return 1; }
/* configure provides its own main(), so putting one here makes the test fail even if qsort() is available */
int not_main(void) { int a[5]; qsort(a, 5, sizeof(int), f); return 0; }
int main() { return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  VXL_STDLIB_HAS_QSORT=1
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

VXL_STDLIB_HAS_QSORT=0
fi
rm -f conftest.$ac_objext conftest.$ac_ext
export VXL_STDLIB_HAS_QSORT
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

# check for bigendian
echo "$as_me:$LINENO: checking whether byte ordering is bigendian" >&5
echo $ECHO_N "checking whether byte ordering is bigendian... $ECHO_C" >&6
if test "${ac_cv_c_bigendian+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  # See if sys/param.h defines the BYTE_ORDER macro.
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <sys/types.h>
#include <sys/param.h>
int main() {
#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
 bogus endian macros
#endif
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  # It does; now see whether it defined to BIG_ENDIAN or not.
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
#include <sys/types.h>
#include <sys/param.h>
int main() {
#if BYTE_ORDER != BIG_ENDIAN
 not big endian
#endif
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_c_bigendian=yes
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

ac_cv_c_bigendian=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

# It does not; compile a test program.
if test "$cross_compiling" = yes; then
  # try to guess the endianness by grepping values into an object file
  ac_cv_c_bigendian=unknown
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
short ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
short ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
void _ascii () { char *s = (char *) ascii_mm; s = (char *) ascii_ii; }
short ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
short ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
void _ebcdic () { char *s = (char *) ebcdic_mm; s = (char *) ebcdic_ii; }
int main() { _ascii (); _ebcdic (); return 0; }
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } &&
         { ac_try='test -s conftest.$ac_objext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  if grep BIGenDianSyS conftest.$ac_objext >/dev/null ; then
  ac_cv_c_bigendian=yes
fi
if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
  if test "$ac_cv_c_bigendian" = unknown; then
    ac_cv_c_bigendian=no
  else
    # finding both strings is unlikely to happen, but who knows?
    ac_cv_c_bigendian=unknown
  fi
fi
else
  echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

fi
rm -f conftest.$ac_objext conftest.$ac_ext
else
  cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
int main() {
  /* Are we little or big endian?  From Harbison&Steele.  */
  union { long l; char c[sizeof(long)]; } u;
  u.l = 1;
  exit (u.c[sizeof (long) - 1] == 1);
}
_ACEOF
rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; }; then
  ac_cv_c_bigendian=no
else
  echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

( exit $ac_status )
ac_cv_c_bigendian=yes
fi
rm -f core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
rm -f conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_c_bigendian" >&5
echo "${ECHO_T}$ac_cv_c_bigendian" >&6
case $ac_cv_c_bigendian in
  yes)

cat >>confdefs.h <<\_ACEOF
#define WORDS_BIGENDIAN 1
_ACEOF
 ;;
  no)
     ;;
  *)
    { { echo "$as_me:$LINENO: error: unknown endianness
presetting ac_cv_c_bigendian=no (or yes) will help" >&5
echo "$as_me: error: unknown endianness
presetting ac_cv_c_bigendian=no (or yes) will help" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

if test $ac_cv_c_bigendian = no; then
  VXL_BIG_ENDIAN=0;
  VXL_LITTLE_ENDIAN=1;
else
  VXL_BIG_ENDIAN=1;
  VXL_LITTLE_ENDIAN=0;
fi

#--------------------------------------------------------------------------------
# complete list of substitutions:

# ...

# libraries

# architecture

CXXFLAGS=$given_CXXFLAGS
TXXFLAGS=$given_TXXFLAGS

                                        ac_config_files="$ac_config_files vcl/vcl_config_manual.h~:vcl/vcl_config_manual.h.in vcl/vcl_config_compiler.h~:vcl/vcl_config_compiler.h.in vcl/vcl_config_headers.h~:vcl/vcl_config_headers.h.in core/vxl_config.h~:core/vxl_config.h.in core/vnl/vnl_config.h~:core/vnl/vnl_config.h.in"
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs, see configure's option --config-cache.
# It is not useful on other systems.  If it contains results you don't
# want to keep, you may remove or edit it.
#
# config.status only pays attention to the cache file if you give it
# the --recheck option to rerun configure.
#
# `ac_cv_env_foo' variables (set or unset) will be overridden when
# loading this file, other *unset* `ac_cv_foo' will be assigned the
# following values.

_ACEOF

# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, don't put newlines in cache variables' values.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
{
  (set) 2>&1 |
    case `(ac_space=' '; set | grep ac_space) 2>&1` in
    *ac_space=\ *)
      # `set' does not quote correctly, so add quotes (double-quote
      # substitution turns \\\\ into \\, and sed turns \\ into \).
      sed -n \
        "s/'/'\\\\''/g;
    	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
      ;;
    *)
      # `set' quotes correctly as required by POSIX, so do not add quotes.
      sed -n \
        "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
      ;;
    esac;
} |
  sed '
     t clear
     : clear
     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
     t end
     /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     : end' >>confcache
if diff $cache_file confcache >/dev/null 2>&1; then :; else
  if test -w $cache_file; then
    test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
    cat confcache >$cache_file
  else
    echo "not updating unwritable cache $cache_file"
  fi
fi
rm -f confcache

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# VPATH may cause trouble with some makes, so we remove $(srcdir),
# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
# trailing colons and then remove the whole line if VPATH becomes empty
# (actually we leave an empty line to preserve line numbers).
if test "x$srcdir" = x.; then
  ac_vpsub='/^[ 	]*VPATH[ 	]*=/{
s/:*\$(srcdir):*/:/;
s/:*\${srcdir}:*/:/;
s/:*@srcdir@:*/:/;
s/^\([^=]*=[ 	]*\):*/\1/;
s/:*$//;
s/^[^=]*=[ 	]*$//;
}'
fi

# Transform confdefs.h into DEFS.
# Protect against shell expansion while executing Makefile rules.
# Protect against Makefile macro expansion.
#
# If the first sed substitution is executed (which looks for macros that
# take arguments), then we branch to the quote section.  Otherwise,
# look for a macro that doesn't take arguments.
cat >confdef2opt.sed <<\_ACEOF
t clear
: clear
s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	(][^ 	(]*([^)]*)\)[ 	]*\(.*\),-D\1=\2,g
t quote
s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	][^ 	]*\)[ 	]*\(.*\),-D\1=\2,g
t quote
d
: quote
s,[ 	`~#$^&*(){}\\|;'"<>?],\\&,g
s,\[,\\&,g
s,\],\\&,g
s,\$,$$,g
p
_ACEOF
# We use echo to avoid assuming a particular line-breaking character.
# The extra dot is to prevent the shell from consuming trailing
# line-breaks from the sub-command output.  A line-break within
# single-quotes doesn't work because, if this script is created in a
# platform that uses two characters for line-breaks (e.g., DOS), tr
# would break.
ac_LF_and_DOT=`echo; echo .`
DEFS=`sed -n -f confdef2opt.sed confdefs.h | tr "$ac_LF_and_DOT" ' .'`
rm -f confdef2opt.sed

ac_libobjs=
ac_ltlibobjs=
for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_i=`echo "$ac_i" |
         sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
  # 2. Add them.
  ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
  ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
done
LIBOBJS=$ac_libobjs

LTLIBOBJS=$ac_ltlibobjs

: ${CONFIG_STATUS=./config.status}
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files $CONFIG_STATUS"
{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
echo "$as_me: creating $CONFIG_STATUS" >&6;}
cat >$CONFIG_STATUS <<_ACEOF
#! $SHELL
# Generated by $as_me.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.

debug=false
ac_cs_recheck=false
ac_cs_silent=false
SHELL=\${CONFIG_SHELL-$SHELL}
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
## --------------------- ##
## M4sh Initialization.  ##
## --------------------- ##

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
  set -o posix
fi

# Support unset when possible.
if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
  as_unset=unset
else
  as_unset=false
fi

# Work around bugs in pre-3.0 UWIN ksh.
$as_unset ENV MAIL MAILPATH
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
for as_var in \
  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
  LC_TELEPHONE LC_TIME
do
  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
    eval $as_var=C; export $as_var
  else
    $as_unset $as_var
  fi
done

# Required to use basename.
if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

# Name of the executable.
as_me=`$as_basename "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)$' \| \
	 .     : '\(.\)' 2>/dev/null ||
echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
  	  /^X\/\(\/\/\)$/{ s//\1/; q; }
  	  /^X\/\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`

# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  echo "#! /bin/sh" >conf$$.sh
  echo  "exit 0"   >>conf$$.sh
  chmod +x conf$$.sh
  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
    PATH_SEPARATOR=';'
  else
    PATH_SEPARATOR=:
  fi
  rm -f conf$$.sh
fi

  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2"  || {
  # Find who we are.  Look in the path if we contain no path at all
  # relative or not.
  case $0 in
    *[\\/]* ) as_myself=$0 ;;
    *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
done
       ;;
  esac
  # We did not find ourselves, most probably we were run as `sh COMMAND'
  # in which case we are not to be found in the path.
  if test "x$as_myself" = x; then
    as_myself=$0
  fi
  if test ! -f "$as_myself"; then
    { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
   { (exit 1); exit 1; }; }
  fi
  case $CONFIG_SHELL in
  '')
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for as_base in sh bash ksh sh5; do
	 case $as_dir in
	 /*)
	   if ("$as_dir/$as_base" -c '
  as_lineno_1=$LINENO
  as_lineno_2=$LINENO
  as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
  test "x$as_lineno_1" != "x$as_lineno_2" &&
  test "x$as_lineno_3"  = "x$as_lineno_2" ') 2>/dev/null; then
	     $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
	     $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
	     CONFIG_SHELL=$as_dir/$as_base
	     export CONFIG_SHELL
	     exec "$CONFIG_SHELL" "$0" ${1+"$@"}
	   fi;;
	 esac
       done
done
;;
  esac

  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
  # uniformly replaced by the line number.  The first 'sed' inserts a
  # line-number line before each line; the second 'sed' does the real
  # work.  The second script uses 'N' to pair each line-number line
  # with the numbered line, and appends trailing '-' during
  # substitution so that $LINENO is not a special case at line end.
  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
  # second 'sed' script.  Blame Lee E. McMahon for sed's syntax.  :-)
  sed '=' <$as_myself |
    sed '
      N
      s,$,-,
      : loop
      s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
      t loop
      s,-$,,
      s,^['$as_cr_digits']*\n,,
    ' >$as_me.lineno &&
  chmod +x $as_me.lineno ||
    { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
   { (exit 1); exit 1; }; }

  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensible to this).
  . ./$as_me.lineno
  # Exit status is that of the last command.
  exit
}

case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
  *c*,-n*) ECHO_N= ECHO_C='
' ECHO_T='	' ;;
  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac

if expr a : '\(a\)' >/dev/null 2>&1; then
  as_expr=expr
else
  as_expr=false
fi

rm -f conf$$ conf$$.exe conf$$.file
echo >conf$$.file
if ln -s conf$$.file conf$$ 2>/dev/null; then
  # We could just check for DJGPP; but this test a) works b) is more generic
  # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
  if test -f conf$$.exe; then
    # Don't use ln at all; we don't have any links
    as_ln_s='cp -p'
  else
    as_ln_s='ln -s'
  fi
elif ln conf$$.file conf$$ 2>/dev/null; then
  as_ln_s=ln
else
  as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.file

if mkdir -p . 2>/dev/null; then
  as_mkdir_p=:
else
  as_mkdir_p=false
fi

as_executable_p="test -f"

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"

# IFS
# We need space, tab and new line, in precisely that order.
as_nl='
'
IFS=" 	$as_nl"

# CDPATH.
$as_unset CDPATH

exec 6>&1

# Open the log real soon, to keep \$[0] and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.  Logging --version etc. is OK.
exec 5>>config.log
{
  echo
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
## Running $as_me. ##
_ASBOX
} >&5
cat >&5 <<_CSEOF

This file was extended by $as_me, which was
generated by GNU Autoconf 2.57.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

_CSEOF
echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
echo >&5
_ACEOF

# Files that config.status was made for.
if test -n "$ac_config_files"; then
  echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_headers"; then
  echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_links"; then
  echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
fi

if test -n "$ac_config_commands"; then
  echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
fi

cat >>$CONFIG_STATUS <<\_ACEOF

ac_cs_usage="\
\`$as_me' instantiates files from templates according to the
current configuration.

Usage: $0 [OPTIONS] [FILE]...

  -h, --help       print this help, then exit
  -V, --version    print version number, then exit
  -q, --quiet      do not print progress messages
  -d, --debug      don't remove temporary files
      --recheck    update $as_me by reconfiguring in the same conditions
  --file=FILE[:TEMPLATE]
                   instantiate the configuration file FILE

Configuration files:
$config_files

Report bugs to <bug-autoconf@gnu.org>."
_ACEOF

cat >>$CONFIG_STATUS <<_ACEOF
ac_cs_version="\\
config.status
configured by $0, generated by GNU Autoconf 2.57,
  with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"

Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."
srcdir=$srcdir
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
# If no file are specified by the user, then we need to provide default
# value.  By we need to know if files were specified by the user.
ac_need_defaults=:
while test $# != 0
do
  case $1 in
  --*=*)
    ac_option=`expr "x$1" : 'x\([^=]*\)='`
    ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
    ac_shift=:
    ;;
  -*)
    ac_option=$1
    ac_optarg=$2
    ac_shift=shift
    ;;
  *) # This is not an option, so the user has probably given explicit
     # arguments.
     ac_option=$1
     ac_need_defaults=false;;
  esac

  case $ac_option in
  # Handling of the options.
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --vers* | -V )
    echo "$ac_cs_version"; exit 0 ;;
  --he | --h)
    # Conflict between --help and --header
    { { echo "$as_me:$LINENO: error: ambiguous option: $1
Try \`$0 --help' for more information." >&5
echo "$as_me: error: ambiguous option: $1
Try \`$0 --help' for more information." >&2;}
   { (exit 1); exit 1; }; };;
  --help | --hel | -h )
    echo "$ac_cs_usage"; exit 0 ;;
  --debug | --d* | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    CONFIG_FILES="$CONFIG_FILES $ac_optarg"
    ac_need_defaults=false;;
  --header | --heade | --head | --hea )
    $ac_shift
    CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
    ac_need_defaults=false;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;

  # This is an error.
  -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
Try \`$0 --help' for more information." >&5
echo "$as_me: error: unrecognized option: $1
Try \`$0 --help' for more information." >&2;}
   { (exit 1); exit 1; }; } ;;

  *) ac_config_targets="$ac_config_targets $1" ;;

  esac
  shift
done

ac_configure_extra_args=

if $ac_cs_silent; then
  exec 6>/dev/null
  ac_configure_extra_args="$ac_configure_extra_args --silent"
fi

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
if \$ac_cs_recheck; then
  echo "running $SHELL $0 " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
  exec $SHELL $0 $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
fi

_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF
for ac_config_target in $ac_config_targets
do
  case "$ac_config_target" in
  # Handling of arguments.
  "vcl/vcl_config_manual.h~" ) CONFIG_FILES="$CONFIG_FILES vcl/vcl_config_manual.h~:vcl/vcl_config_manual.h.in" ;;
  "vcl/vcl_config_compiler.h~" ) CONFIG_FILES="$CONFIG_FILES vcl/vcl_config_compiler.h~:vcl/vcl_config_compiler.h.in" ;;
  "vcl/vcl_config_headers.h~" ) CONFIG_FILES="$CONFIG_FILES vcl/vcl_config_headers.h~:vcl/vcl_config_headers.h.in" ;;
  "core/vxl_config.h~" ) CONFIG_FILES="$CONFIG_FILES core/vxl_config.h~:core/vxl_config.h.in" ;;
  "core/vnl/vnl_config.h~" ) CONFIG_FILES="$CONFIG_FILES core/vnl/vnl_config.h~:core/vnl/vnl_config.h.in" ;;
  *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
   { (exit 1); exit 1; }; };;
  esac
done

# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used.  Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
fi

# Have a temporary directory for convenience.  Make it in the build tree
# simply because there is no reason to put it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
# Create a temporary directory, and hook for its removal unless debugging.
$debug ||
{
  trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
  trap '{ (exit 1); exit 1; }' 1 2 13 15
}

# Create a (secure) tmp directory for tmp files.

{
  tmp=`(umask 077 && mktemp -d -q "./confstatXXXXXX") 2>/dev/null` &&
  test -n "$tmp" && test -d "$tmp"
}  ||
{
  tmp=./confstat$$-$RANDOM
  (umask 077 && mkdir $tmp)
} ||
{
   echo "$me: cannot create a temporary directory in ." >&2
   { (exit 1); exit 1; }
}

_ACEOF

cat >>$CONFIG_STATUS <<_ACEOF

#
# CONFIG_FILES section.
#

# No need to generate the scripts if there are no CONFIG_FILES.
# This happens for instance when ./config.status config.h
if test -n "\$CONFIG_FILES"; then
  # Protect against being on the right side of a sed subst in config.status.
  sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
   s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF
s,@SHELL@,$SHELL,;t t
s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
s,@exec_prefix@,$exec_prefix,;t t
s,@prefix@,$prefix,;t t
s,@program_transform_name@,$program_transform_name,;t t
s,@bindir@,$bindir,;t t
s,@sbindir@,$sbindir,;t t
s,@libexecdir@,$libexecdir,;t t
s,@datadir@,$datadir,;t t
s,@sysconfdir@,$sysconfdir,;t t
s,@sharedstatedir@,$sharedstatedir,;t t
s,@localstatedir@,$localstatedir,;t t
s,@libdir@,$libdir,;t t
s,@includedir@,$includedir,;t t
s,@oldincludedir@,$oldincludedir,;t t
s,@infodir@,$infodir,;t t
s,@mandir@,$mandir,;t t
s,@build_alias@,$build_alias,;t t
s,@host_alias@,$host_alias,;t t
s,@target_alias@,$target_alias,;t t
s,@DEFS@,$DEFS,;t t
s,@ECHO_C@,$ECHO_C,;t t
s,@ECHO_N@,$ECHO_N,;t t
s,@ECHO_T@,$ECHO_T,;t t
s,@LIBS@,$LIBS,;t t
s,@CC@,$CC,;t t
s,@CFLAGS@,$CFLAGS,;t t
s,@LDFLAGS@,$LDFLAGS,;t t
s,@CPPFLAGS@,$CPPFLAGS,;t t
s,@ac_ct_CC@,$ac_ct_CC,;t t
s,@EXEEXT@,$EXEEXT,;t t
s,@OBJEXT@,$OBJEXT,;t t
s,@CXX@,$CXX,;t t
s,@CXXFLAGS@,$CXXFLAGS,;t t
s,@ac_ct_CXX@,$ac_ct_CXX,;t t
s,@CXXCPP@,$CXXCPP,;t t
s,@EGREP@,$EGREP,;t t
s,@VCL_USE_NATIVE_STL@,$VCL_USE_NATIVE_STL,;t t
s,@VCL_USE_NATIVE_COMPLEX@,$VCL_USE_NATIVE_COMPLEX,;t t
s,@VCL_USE_IMPLICIT_TEMPLATES@,$VCL_USE_IMPLICIT_TEMPLATES,;t t
s,@VNL_CONFIG_CHECK_BOUNDS@,$VNL_CONFIG_CHECK_BOUNDS,;t t
s,@VNL_CONFIG_LEGACY_METHODS@,$VNL_CONFIG_LEGACY_METHODS,;t t
s,@VNL_CONFIG_THREAD_SAFE@,$VNL_CONFIG_THREAD_SAFE,;t t
s,@VCL_HAS_BOOL@,$VCL_HAS_BOOL,;t t
s,@VCL_HAS_DYNAMIC_CAST@,$VCL_HAS_DYNAMIC_CAST,;t t
s,@VCL_HAS_RTTI@,$VCL_HAS_RTTI,;t t
s,@VCL_HAS_TYPENAME@,$VCL_HAS_TYPENAME,;t t
s,@VCL_HAS_EXPORT@,$VCL_HAS_EXPORT,;t t
s,@VCL_HAS_MUTABLE@,$VCL_HAS_MUTABLE,;t t
s,@VCL_HAS_EXPLICIT@,$VCL_HAS_EXPLICIT,;t t
s,@VCL_STATIC_CONST_INIT_INT@,$VCL_STATIC_CONST_INIT_INT,;t t
s,@VCL_STATIC_CONST_INIT_NO_DEFN@,$VCL_STATIC_CONST_INIT_NO_DEFN,;t t
s,@VCL_STATIC_CONST_INIT_FLOAT@,$VCL_STATIC_CONST_INIT_FLOAT,;t t
s,@VCL_FOR_SCOPE_HACK@,$VCL_FOR_SCOPE_HACK,;t t
s,@VCL_HAS_MEMBER_TEMPLATES@,$VCL_HAS_MEMBER_TEMPLATES,;t t
s,@VCL_CAN_DO_PARTIAL_SPECIALIZATION@,$VCL_CAN_DO_PARTIAL_SPECIALIZATION,;t t
s,@VCL_ALLOWS_INLINE_INSTANTIATION@,$VCL_ALLOWS_INLINE_INSTANTIATION,;t t
s,@VCL_NEEDS_INLINE_INSTANTIATION@,$VCL_NEEDS_INLINE_INSTANTIATION,;t t
s,@VCL_CAN_DO_STATIC_TEMPLATE_MEMBER@,$VCL_CAN_DO_STATIC_TEMPLATE_MEMBER,;t t
s,@VCL_CAN_DO_NON_TYPE_FUNCTION_TEMPLATE_PARAMETER@,$VCL_CAN_DO_NON_TYPE_FUNCTION_TEMPLATE_PARAMETER,;t t
s,@VCL_NEED_FRIEND_FOR_TEMPLATE_OVERLOAD@,$VCL_NEED_FRIEND_FOR_TEMPLATE_OVERLOAD,;t t
s,@VCL_OVERLOAD_CAST@,$VCL_OVERLOAD_CAST,;t t
s,@VCL_DEFINE_SPECIALIZATION@,$VCL_DEFINE_SPECIALIZATION,;t t
s,@VCL_CANNOT_SPECIALIZE_CV@,$VCL_CANNOT_SPECIALIZE_CV,;t t
s,@VCL_NULL_TMPL_ARGS@,$VCL_NULL_TMPL_ARGS,;t t
s,@VCL_COMPLEX_POW_WORKS@,$VCL_COMPLEX_POW_WORKS,;t t
s,@VCL_DEFAULT_VALUE@,$VCL_DEFAULT_VALUE,;t t
s,@VCL_NO_STATIC_DATA_MEMBERS@,$VCL_NO_STATIC_DATA_MEMBERS,;t t
s,@VCL_HAS_TEMPLATE_SYMBOLS@,$VCL_HAS_TEMPLATE_SYMBOLS,;t t
s,@VCL_TEMPLATE_MATCHES_TOO_OFTEN@,$VCL_TEMPLATE_MATCHES_TOO_OFTEN,;t t
s,@VCL_HAS_SLICED_DESTRUCTOR_BUG@,$VCL_HAS_SLICED_DESTRUCTOR_BUG,;t t
s,@VCL_CHAR_IS_SIGNED@,$VCL_CHAR_IS_SIGNED,;t t
s,@VCL_NUMERIC_LIMITS_HAS_INFINITY@,$VCL_NUMERIC_LIMITS_HAS_INFINITY,;t t
s,@VCL_PROCESSOR_HAS_INFINITY@,$VCL_PROCESSOR_HAS_INFINITY,;t t
s,@VCL_DEFAULT_TMPL_ARG@,$VCL_DEFAULT_TMPL_ARG,;t t
s,@VCL_CAN_DO_COMPLETE_DEFAULT_TYPE_PARAMETER@,$VCL_CAN_DO_COMPLETE_DEFAULT_TYPE_PARAMETER,;t t
s,@VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER@,$VCL_CAN_DO_TEMPLATE_DEFAULT_TYPE_PARAMETER,;t t
s,@VCL_SUNPRO_CLASS_SCOPE_HACK@,$VCL_SUNPRO_CLASS_SCOPE_HACK,;t t
s,@VCL_HAS_EXCEPTIONS@,$VCL_HAS_EXCEPTIONS,;t t
s,@VCL_HAS_NAMESPACES@,$VCL_HAS_NAMESPACES,;t t
s,@VCL_ALLOWS_NAMESPACE_STD@,$VCL_ALLOWS_NAMESPACE_STD,;t t
s,@VCL_NEEDS_NAMESPACE_STD@,$VCL_NEEDS_NAMESPACE_STD,;t t
s,@VCL_BIG_ENDIAN@,$VCL_BIG_ENDIAN,;t t
s,@VCL_LITTLE_ENDIAN@,$VCL_LITTLE_ENDIAN,;t t
s,@VCL_CXX_HAS_HEADER_CASSERT@,$VCL_CXX_HAS_HEADER_CASSERT,;t t
s,@VCL_CXX_HAS_HEADER_CISO646@,$VCL_CXX_HAS_HEADER_CISO646,;t t
s,@VCL_CXX_HAS_HEADER_CSETJMP@,$VCL_CXX_HAS_HEADER_CSETJMP,;t t
s,@VCL_CXX_HAS_HEADER_CSTDIO@,$VCL_CXX_HAS_HEADER_CSTDIO,;t t
s,@VCL_CXX_HAS_HEADER_CTIME@,$VCL_CXX_HAS_HEADER_CTIME,;t t
s,@VCL_CXX_HAS_HEADER_CCTYPE@,$VCL_CXX_HAS_HEADER_CCTYPE,;t t
s,@VCL_CXX_HAS_HEADER_CLIMITS@,$VCL_CXX_HAS_HEADER_CLIMITS,;t t
s,@VCL_CXX_HAS_HEADER_CSIGNAL@,$VCL_CXX_HAS_HEADER_CSIGNAL,;t t
s,@VCL_CXX_HAS_HEADER_CSTDLIB@,$VCL_CXX_HAS_HEADER_CSTDLIB,;t t
s,@VCL_CXX_HAS_HEADER_CWCHAR@,$VCL_CXX_HAS_HEADER_CWCHAR,;t t
s,@VCL_CXX_HAS_HEADER_CERRNO@,$VCL_CXX_HAS_HEADER_CERRNO,;t t
s,@VCL_CXX_HAS_HEADER_CLOCALE@,$VCL_CXX_HAS_HEADER_CLOCALE,;t t
s,@VCL_CXX_HAS_HEADER_CSTDARG@,$VCL_CXX_HAS_HEADER_CSTDARG,;t t
s,@VCL_CXX_HAS_HEADER_CSTRING@,$VCL_CXX_HAS_HEADER_CSTRING,;t t
s,@VCL_CXX_HAS_HEADER_CWCTYPE@,$VCL_CXX_HAS_HEADER_CWCTYPE,;t t
s,@VCL_CXX_HAS_HEADER_CFLOAT@,$VCL_CXX_HAS_HEADER_CFLOAT,;t t
s,@VCL_CXX_HAS_HEADER_CMATH@,$VCL_CXX_HAS_HEADER_CMATH,;t t
s,@VCL_CXX_HAS_HEADER_CSTDDEF@,$VCL_CXX_HAS_HEADER_CSTDDEF,;t t
s,@VCL_CXX_HAS_HEADER_ALGORITHM@,$VCL_CXX_HAS_HEADER_ALGORITHM,;t t
s,@VCL_CXX_HAS_HEADER_IOMANIP@,$VCL_CXX_HAS_HEADER_IOMANIP,;t t
s,@VCL_CXX_HAS_HEADER_LIST@,$VCL_CXX_HAS_HEADER_LIST,;t t
s,@VCL_CXX_HAS_HEADER_OSTREAM@,$VCL_CXX_HAS_HEADER_OSTREAM,;t t
s,@VCL_CXX_HAS_HEADER_STREAMBUF@,$VCL_CXX_HAS_HEADER_STREAMBUF,;t t
s,@VCL_CXX_HAS_HEADER_BITSET@,$VCL_CXX_HAS_HEADER_BITSET,;t t
s,@VCL_CXX_HAS_HEADER_IOS@,$VCL_CXX_HAS_HEADER_IOS,;t t
s,@VCL_CXX_HAS_HEADER_LOCALE@,$VCL_CXX_HAS_HEADER_LOCALE,;t t
s,@VCL_CXX_HAS_HEADER_QUEUE@,$VCL_CXX_HAS_HEADER_QUEUE,;t t
s,@VCL_CXX_HAS_HEADER_STRING@,$VCL_CXX_HAS_HEADER_STRING,;t t
s,@VCL_CXX_HAS_HEADER_COMPLEX@,$VCL_CXX_HAS_HEADER_COMPLEX,;t t
s,@VCL_CXX_HAS_HEADER_IOSFWD@,$VCL_CXX_HAS_HEADER_IOSFWD,;t t
s,@VCL_CXX_HAS_HEADER_MAP@,$VCL_CXX_HAS_HEADER_MAP,;t t
s,@VCL_CXX_HAS_HEADER_SET@,$VCL_CXX_HAS_HEADER_SET,;t t
s,@VCL_CXX_HAS_HEADER_TYPEINFO@,$VCL_CXX_HAS_HEADER_TYPEINFO,;t t
s,@VCL_CXX_HAS_HEADER_DEQUE@,$VCL_CXX_HAS_HEADER_DEQUE,;t t
s,@VCL_CXX_HAS_HEADER_IOSTREAM@,$VCL_CXX_HAS_HEADER_IOSTREAM,;t t
s,@VCL_CXX_HAS_HEADER_MEMORY@,$VCL_CXX_HAS_HEADER_MEMORY,;t t
s,@VCL_CXX_HAS_HEADER_SSTREAM@,$VCL_CXX_HAS_HEADER_SSTREAM,;t t
s,@VCL_CXX_HAS_HEADER_UTILITY@,$VCL_CXX_HAS_HEADER_UTILITY,;t t
s,@VCL_CXX_HAS_HEADER_EXCEPTION@,$VCL_CXX_HAS_HEADER_EXCEPTION,;t t
s,@VCL_CXX_HAS_HEADER_ISTREAM@,$VCL_CXX_HAS_HEADER_ISTREAM,;t t
s,@VCL_CXX_HAS_HEADER_NEW@,$VCL_CXX_HAS_HEADER_NEW,;t t
s,@VCL_CXX_HAS_HEADER_STACK@,$VCL_CXX_HAS_HEADER_STACK,;t t
s,@VCL_CXX_HAS_HEADER_VALARRAY@,$VCL_CXX_HAS_HEADER_VALARRAY,;t t
s,@VCL_CXX_HAS_HEADER_FSTREAM@,$VCL_CXX_HAS_HEADER_FSTREAM,;t t
s,@VCL_CXX_HAS_HEADER_ITERATOR@,$VCL_CXX_HAS_HEADER_ITERATOR,;t t
s,@VCL_CXX_HAS_HEADER_NUMERIC@,$VCL_CXX_HAS_HEADER_NUMERIC,;t t
s,@VCL_CXX_HAS_HEADER_STDEXCEPT@,$VCL_CXX_HAS_HEADER_STDEXCEPT,;t t
s,@VCL_CXX_HAS_HEADER_VECTOR@,$VCL_CXX_HAS_HEADER_VECTOR,;t t
s,@VCL_CXX_HAS_HEADER_FUNCTIONAL@,$VCL_CXX_HAS_HEADER_FUNCTIONAL,;t t
s,@VCL_CXX_HAS_HEADER_LIMITS@,$VCL_CXX_HAS_HEADER_LIMITS,;t t
s,@VCL_CXX_HAS_HEADER_STRSTREAM@,$VCL_CXX_HAS_HEADER_STRSTREAM,;t t
s,@CPP@,$CPP,;t t
s,@VXL_HAS_PTHREAD_H@,$VXL_HAS_PTHREAD_H,;t t
s,@VXL_HAS_SEMAPHORE_H@,$VXL_HAS_SEMAPHORE_H,;t t
s,@VXL_UNISTD_HAS_USECONDS_T@,$VXL_UNISTD_HAS_USECONDS_T,;t t
s,@VXL_UNISTD_HAS_INTPTR_T@,$VXL_UNISTD_HAS_INTPTR_T,;t t
s,@VXL_UNISTD_HAS_UALARM@,$VXL_UNISTD_HAS_UALARM,;t t
s,@VXL_UNISTD_HAS_USLEEP@,$VXL_UNISTD_HAS_USLEEP,;t t
s,@VXL_UNISTD_HAS_LCHOWN@,$VXL_UNISTD_HAS_LCHOWN,;t t
s,@VXL_UNISTD_HAS_PREAD@,$VXL_UNISTD_HAS_PREAD,;t t
s,@VXL_UNISTD_HAS_PWRITE@,$VXL_UNISTD_HAS_PWRITE,;t t
s,@VXL_UNISTD_HAS_TELL@,$VXL_UNISTD_HAS_TELL,;t t
s,@VXL_STDLIB_HAS_QSORT@,$VXL_STDLIB_HAS_QSORT,;t t
s,@VXL_STDLIB_HAS_LRAND48@,$VXL_STDLIB_HAS_LRAND48,;t t
s,@VXL_STDLIB_HAS_DRAND48@,$VXL_STDLIB_HAS_DRAND48,;t t
s,@VXL_STDLIB_HAS_SRAND48@,$VXL_STDLIB_HAS_SRAND48,;t t
s,@VXL_IEEEFP_HAS_FINITE@,$VXL_IEEEFP_HAS_FINITE,;t t
s,@VXL_C_MATH_HAS_FINITEF@,$VXL_C_MATH_HAS_FINITEF,;t t
s,@VXL_C_MATH_HAS_FINITE@,$VXL_C_MATH_HAS_FINITE,;t t
s,@VXL_C_MATH_HAS_FINITEL@,$VXL_C_MATH_HAS_FINITEL,;t t
s,@VXL_C_MATH_HAS_SQRTF@,$VXL_C_MATH_HAS_SQRTF,;t t
s,@VXL_UNISTD_USLEEP_IS_VOID@,$VXL_UNISTD_USLEEP_IS_VOID,;t t
s,@VXL_TWO_ARG_GETTIME@,$VXL_TWO_ARG_GETTIME,;t t
s,@VXL_HAS_IEEEFP_H@,$VXL_HAS_IEEEFP_H,;t t
s,@VCL_CXX_HAS_HEADER_ISO646_H@,$VCL_CXX_HAS_HEADER_ISO646_H,;t t
s,@VXL_BIG_ENDIAN@,$VXL_BIG_ENDIAN,;t t
s,@VXL_LITTLE_ENDIAN@,$VXL_LITTLE_ENDIAN,;t t
s,@VXL_HAS_BYTE@,$VXL_HAS_BYTE,;t t
s,@VXL_HAS_INT_8@,$VXL_HAS_INT_8,;t t
s,@VXL_HAS_INT_16@,$VXL_HAS_INT_16,;t t
s,@VXL_HAS_INT_32@,$VXL_HAS_INT_32,;t t
s,@VXL_HAS_INT_64@,$VXL_HAS_INT_64,;t t
s,@VXL_HAS_IEEE_32@,$VXL_HAS_IEEE_32,;t t
s,@VXL_HAS_IEEE_64@,$VXL_HAS_IEEE_64,;t t
s,@VXL_HAS_IEEE_96@,$VXL_HAS_IEEE_96,;t t
s,@VXL_HAS_IEEE_128@,$VXL_HAS_IEEE_128,;t t
s,@VXL_BYTE@,$VXL_BYTE,;t t
s,@VXL_INT_8@,$VXL_INT_8,;t t
s,@VXL_INT_16@,$VXL_INT_16,;t t
s,@VXL_INT_32@,$VXL_INT_32,;t t
s,@VXL_INT_64@,$VXL_INT_64,;t t
s,@VXL_INT_64_IS_LONG@,$VXL_INT_64_IS_LONG,;t t
s,@VXL_IEEE_32@,$VXL_IEEE_32,;t t
s,@VXL_IEEE_64@,$VXL_IEEE_64,;t t
s,@VXL_IEEE_96@,$VXL_IEEE_96,;t t
s,@VXL_IEEE_128@,$VXL_IEEE_128,;t t
s,@LIBOBJS@,$LIBOBJS,;t t
s,@LTLIBOBJS@,$LTLIBOBJS,;t t
CEOF

_ACEOF

  cat >>$CONFIG_STATUS <<\_ACEOF
  # Split the substitutions into bite-sized pieces for seds with
  # small command number limits, like on Digital OSF/1 and HP-UX.
  ac_max_sed_lines=48
  ac_sed_frag=1 # Number of current file.
  ac_beg=1 # First line for current file.
  ac_end=$ac_max_sed_lines # Line after last line for current file.
  ac_more_lines=:
  ac_sed_cmds=
  while $ac_more_lines; do
    if test $ac_beg -gt 1; then
      sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    else
      sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    fi
    if test ! -s $tmp/subs.frag; then
      ac_more_lines=false
    else
      # The purpose of the label and of the branching condition is to
      # speed up the sed processing (if there are no `@' at all, there
      # is no need to browse any of the substitutions).
      # These are the two extra sed commands mentioned above.
      (echo ':t
  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
      if test -z "$ac_sed_cmds"; then
  	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
      else
  	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
      fi
      ac_sed_frag=`expr $ac_sed_frag + 1`
      ac_beg=$ac_end
      ac_end=`expr $ac_end + $ac_max_sed_lines`
    fi
  done
  if test -z "$ac_sed_cmds"; then
    ac_sed_cmds=cat
  fi
fi # test -n "$CONFIG_FILES"

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case $ac_file in
  - | *:- | *:-:* ) # input from stdin
        cat >$tmp/stdin
        ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  * )   ac_file_in=$ac_file.in ;;
  esac

  # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
  ac_dir=`(dirname "$ac_file") 2>/dev/null ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
         X"$ac_file" : 'X\(//\)[^/]' \| \
         X"$ac_file" : 'X\(//\)$' \| \
         X"$ac_file" : 'X\(/\)' \| \
         .     : '\(.\)' 2>/dev/null ||
echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
  { if $as_mkdir_p; then
    mkdir -p "$ac_dir"
  else
    as_dir="$ac_dir"
    as_dirs=
    while test ! -d "$as_dir"; do
      as_dirs="$as_dir $as_dirs"
      as_dir=`(dirname "$as_dir") 2>/dev/null ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
         X"$as_dir" : 'X\(//\)[^/]' \| \
         X"$as_dir" : 'X\(//\)$' \| \
         X"$as_dir" : 'X\(/\)' \| \
         .     : '\(.\)' 2>/dev/null ||
echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
  	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
  	  /^X\(\/\/\)$/{ s//\1/; q; }
  	  /^X\(\/\).*/{ s//\1/; q; }
  	  s/.*/./; q'`
    done
    test ! -n "$as_dirs" || mkdir $as_dirs
  fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
   { (exit 1); exit 1; }; }; }

  ac_builddir=.

if test "$ac_dir" != .; then
  ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
  # A "../" for each directory in $ac_dir_suffix.
  ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
else
  ac_dir_suffix= ac_top_builddir=
fi

case $srcdir in
  .)  # No --srcdir option.  We are building in place.
    ac_srcdir=.
    if test -z "$ac_top_builddir"; then
       ac_top_srcdir=.
    else
       ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
    fi ;;
  [\\/]* | ?:[\\/]* )  # Absolute path.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir ;;
  *) # Relative path.
    ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_builddir$srcdir ;;
esac
# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
# absolute.
ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`

  if test x"$ac_file" != x-; then
    { echo "$as_me:$LINENO: creating $ac_file" >&5
echo "$as_me: creating $ac_file" >&6;}
    rm -f "$ac_file"
  fi
  # Let's still pretend it is `configure' which instantiates (i.e., don't
  # use $as_me), people would be surprised to read:
  #    /* config.h.  Generated by config.status.  */
  if test x"$ac_file" = x-; then
    configure_input=
  else
    configure_input="$ac_file.  "
  fi
  configure_input=$configure_input"Generated from `echo $ac_file_in |
                                     sed 's,.*/,,'` by configure."

  # First look for the input files in the build tree, otherwise in the
  # src tree.
  ac_file_inputs=`IFS=:
    for f in $ac_file_in; do
      case $f in
      -) echo $tmp/stdin ;;
      [\\/$]*)
         # Absolute (can't be DOS-style, as IFS=:)
         test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
         echo $f;;
      *) # Relative
         if test -f "$f"; then
           # Build tree
           echo $f
         elif test -f "$srcdir/$f"; then
           # Source tree
           echo $srcdir/$f
         else
           # /dev/null tree
           { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
echo "$as_me: error: cannot find input file: $f" >&2;}
   { (exit 1); exit 1; }; }
         fi;;
      esac
    done` || { (exit 1); exit 1; }
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
  sed "$ac_vpsub
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
:t
/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
s,@configure_input@,$configure_input,;t t
s,@srcdir@,$ac_srcdir,;t t
s,@abs_srcdir@,$ac_abs_srcdir,;t t
s,@top_srcdir@,$ac_top_srcdir,;t t
s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
s,@builddir@,$ac_builddir,;t t
s,@abs_builddir@,$ac_abs_builddir,;t t
s,@top_builddir@,$ac_top_builddir,;t t
s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
  rm -f $tmp/stdin
  if test x"$ac_file" != x-; then
    mv $tmp/out $ac_file
  else
    cat $tmp/out
    rm -f $tmp/out
  fi

done
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF

{ (exit 0); exit 0; }
_ACEOF
chmod +x $CONFIG_STATUS
ac_clean_files=$ac_clean_files_save

# configure is writing to config.log, and then calls config.status.
# config.status does its own redirection, appending to config.log.
# Unfortunately, on DOS this fails, as config.log is still kept open
# by configure, so config.status won't be able to write to it; its
# output is simply discarded.  So we exec the FD to /dev/null,
# effectively closing config.log, so it can be properly (re)opened and
# appended to by config.status.  When coming back to configure, we
# need to make the FD available again.
if test "$no_create" != yes; then
  ac_cs_success=:
  ac_config_status_args=
  test "$silent" = yes &&
    ac_config_status_args="$ac_config_status_args --quiet"
  exec 5>/dev/null
  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
  exec 5>>config.log
  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
  # would make configure fail if this is the last instruction.
  $ac_cs_success || { (exit 1); exit 1; }
fi


# only touch files that actually change.
for f in "vcl/vcl_config_manual.h" "vcl/vcl_config_compiler.h" "vcl/vcl_config_headers.h" "core/vxl_config.h" "core/vnl/vnl_config.h"; do
  if test -f $f; then
    if diff ${f} ${f}~ 2>&1 >/dev/null ; then
      echo "no change to ${f}"
      rm -f ${f}~
    else
      echo "replacing old ${f}"
      mv -f ${f}~ ${f}
    fi
  else
    echo "creating new ${f}"
    mv -f ${f}~ ${f}
  fi
done

# END VXL STUFF
#=========================================================================