[Cscope-cvs] CVS: cscope configure.in,1.28,1.29 configure,1.21,1.22

[Hans-Bernhard B. <br...@us...>]

Update of /cvsroot/cscope/cscope
In directory sc8-pr-cvs1:/tmp/cvs-serv26974

Modified Files:
	configure.in configure 
Log Message:
Have configure check for <regex.h>, and stop if none found.

Index: configure.in
===================================================================
RCS file: /cvsroot/cscope/cscope/configure.in,v
retrieving revision 1.28
retrieving revision 1.29
diff -C2 -r1.28 -r1.29
*** configure.in	12 Jun 2003 17:11:37 -0000	1.28
--- configure.in	14 Aug 2003 14:34:15 -0000	1.29
***************
*** 350,353 ****
--- 350,357 ----
  dnl AC_CHECK_LIB(curses, main)
  
+ AC_CHECK_HEADER(regex.h, [], [
+   AC_MSG_ERROR([necessary header <regex.h> not found])
+ ])
+ 
  dnl Cygwin is a bit peculiar: it has the regcomp() functions, but in a
  dnl separate library, so we have to check for that:

Index: configure
===================================================================
RCS file: /cvsroot/cscope/cscope/configure,v
retrieving revision 1.21
retrieving revision 1.22
diff -C2 -r1.21 -r1.22
*** configure	12 Jun 2003 17:11:37 -0000	1.21
--- configure	14 Aug 2003 14:34:16 -0000	1.22
***************
*** 3856,3859 ****
--- 3856,4223 ----
  
  
+ 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.$ac_ext <<_ACEOF
+ /* end confdefs.h.  */
+ #include <stdlib.h>
+ #include <stdarg.h>
+ #include <string.h>
+ #include <float.h>
+ 
+ int
+ main ()
+ {
+ 
+   ;
+   return 0;
+ }
+ _ACEOF
+ rm -f conftest.$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.$ac_ext <<_ACEOF
+ /* end confdefs.h.  */
+ #include <string.h>
+ 
+ _ACEOF
+ if (eval "$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.$ac_ext <<_ACEOF
+ /* end confdefs.h.  */
+ #include <stdlib.h>
+ 
+ _ACEOF
+ if (eval "$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.$ac_ext <<_ACEOF
+ /* end confdefs.h.  */
+ #include <ctype.h>
+ #if ((' ' & 0x0FF) == 0x020)
+ # define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+ # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+ #else
+ # define ISLOWER(c) \
+                    (('a' <= (c) && (c) <= 'i') \
+                      || ('j' <= (c) && (c) <= 'r') \
+                      || ('s' <= (c) && (c) <= 'z'))
+ # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+ #endif
+ 
+ #define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+ int
+ main ()
+ {
+   int i;
+   for (i = 0; i < 256; i++)
+     if (XOR (islower (i), ISLOWER (i))
+         || toupper (i) != TOUPPER (i))
+       exit(2);
+   exit (0);
+ }
+ _ACEOF
+ rm -f conftest$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 $ac_status )
+ ac_cv_header_stdc=no
+ fi
+ rm -f core core.* *.core gmon.out bb.out conftest$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
+ /* end confdefs.h.  */
+ $ac_includes_default
+ 
+ #include <$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" | $as_tr_cpp` 1
+ _ACEOF
+ 
+ fi
+ 
+ done
+ 
+ 
+ if test "${ac_cv_header_regex_h+set}" = set; then
+   echo "$as_me:$LINENO: checking for regex.h" >&5
+ echo $ECHO_N "checking for regex.h... $ECHO_C" >&6
+ if test "${ac_cv_header_regex_h+set}" = set; then
+   echo $ECHO_N "(cached) $ECHO_C" >&6
+ fi
+ echo "$as_me:$LINENO: result: $ac_cv_header_regex_h" >&5
+ echo "${ECHO_T}$ac_cv_header_regex_h" >&6
+ else
+   # Is the header compilable?
+ echo "$as_me:$LINENO: checking regex.h usability" >&5
+ echo $ECHO_N "checking regex.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
+ /* end confdefs.h.  */
+ $ac_includes_default
+ #include <regex.h>
+ _ACEOF
+ rm -f conftest.$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 regex.h presence" >&5
+ echo $ECHO_N "checking regex.h presence... $ECHO_C" >&6
+ cat >conftest.$ac_ext <<_ACEOF
+ #line $LINENO "configure"
+ /* confdefs.h.  */
+ _ACEOF
+ cat confdefs.h >>conftest.$ac_ext
+ cat >>conftest.$ac_ext <<_ACEOF
+ /* end confdefs.h.  */
+ #include <regex.h>
+ _ACEOF
+ if { (eval echo "$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: regex.h: accepted by the compiler, rejected by the preprocessor!" >&5
+ echo "$as_me: WARNING: regex.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+     { echo "$as_me:$LINENO: WARNING: regex.h: proceeding with the preprocessor's result" >&5
+ echo "$as_me: WARNING: regex.h: proceeding with the preprocessor's result" >&2;}
+     (
+       cat <<\_ASBOX
+ ## ------------------------------------ ##
+ ## Report this to bug...@gn.... ##
+ ## ------------------------------------ ##
+ _ASBOX
+     ) |
+       sed "s/^/$as_me: WARNING:     /" >&2
+     ;;
+   no:yes )
+     { echo "$as_me:$LINENO: WARNING: regex.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: regex.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: regex.h: check for missing prerequisite headers?" >&5
+ echo "$as_me: WARNING: regex.h: check for missing prerequisite headers?" >&2;}
+     { echo "$as_me:$LINENO: WARNING: regex.h: proceeding with the preprocessor's result" >&5
+ echo "$as_me: WARNING: regex.h: proceeding with the preprocessor's result" >&2;}
+     (
+       cat <<\_ASBOX
+ ## ------------------------------------ ##
+ ## Report this to bug...@gn.... ##
+ ## ------------------------------------ ##
+ _ASBOX
+     ) |
+       sed "s/^/$as_me: WARNING:     /" >&2
+     ;;
+ esac
+ echo "$as_me:$LINENO: checking for regex.h" >&5
+ echo $ECHO_N "checking for regex.h... $ECHO_C" >&6
+ if test "${ac_cv_header_regex_h+set}" = set; then
+   echo $ECHO_N "(cached) $ECHO_C" >&6
+ else
+   ac_cv_header_regex_h=$ac_header_preproc
+ fi
+ echo "$as_me:$LINENO: result: $ac_cv_header_regex_h" >&5
+ echo "${ECHO_T}$ac_cv_header_regex_h" >&6
+ 
+ fi
+ if test $ac_cv_header_regex_h = yes; then
+   :
+ else
+ 
+   { { echo "$as_me:$LINENO: error: necessary header <regex.h> not found" >&5
+ echo "$as_me: error: necessary header <regex.h> not found" >&2;}
+    { (exit 1); exit 1; }; }
+ 
+ fi
+ 
+ 
+ 
  
  echo "$as_me:$LINENO: checking for regcomp in -lregex" >&5
***************
*** 4476,4542 ****
  
  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
- /* end confdefs.h.  */
- $ac_includes_default
- 
- #include <$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
- 
  
  
--- 4840,4843 ----