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_xine.m4    146 lines (131 with data), 4.8 kB

dnl
dnl Check for minimum version of libtool
dnl AC_PREREQ_LIBTOOL([MINIMUM VERSION],[ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]])
AC_DEFUN([AC_PREREQ_LIBTOOL],
  [
    lt_min_full=ifelse([$1], ,1.3.5,$1)
    lt_min=`echo $lt_min_full | sed -e 's/\.//g'`
    AC_MSG_CHECKING(for libtool >= $lt_min_full)
    lpwd="`pwd`"
    lt_pathname="`echo $lpwd/ltmain.sh | sed -e 's/\=build\///g'`"
    lt_version="`grep '^VERSION' $lt_pathname | sed -e 's/\.//g;s/VERSION\=//g;s/[a-zA-Z]//g;s/-//g'`"

    if test $lt_version -lt 100; then
      lt_version=`expr $lt_version \* 10`
    fi

    if test $lt_version -lt $lt_min; then
      AC_MSG_RESULT(no)
      ifelse([$3], , :, [$3])
    fi
    AC_MSG_RESULT(yes)
    ifelse([$2], , :, [$2])
  ])

dnl
AC_DEFUN([AC_CHECK_LIRC],
  [AC_ARG_ENABLE(lirc,
     [  --disable-lirc          Turn off LIRC support.],
     , enable_lirc=yes)

  if test x"$enable_lirc" = xyes; then
     have_lirc=yes
     AC_REQUIRE_CPP
     AC_CHECK_LIB(lirc_client,lirc_init,
           AC_CHECK_HEADER(lirc/lirc_client.h, true, have_lirc=no), have_lirc=no)
     if test "$have_lirc" = "yes"; then

        if test x"$LIRC_PREFIX" != "x"; then
           lirc_libprefix="$LIRC_PREFIX/lib"
  	   LIRC_INCLUDE="-I$LIRC_PREFIX/include"
        fi
        for llirc in $lirc_libprefix /lib /usr/lib /usr/local/lib; do
          AC_CHECK_FILE("$llirc/liblirc_client.a",
             LIRC_LIBS="$llirc/liblirc_client.a"
             AC_DEFINE(HAVE_LIRC),,)
        done
     else
         AC_MSG_RESULT([*** LIRC client support not available, LIRC support will be disabled ***]);
     fi
  fi

     AC_SUBST(LIRC_LIBS)
     AC_SUBST(LIRC_INCLUDE)
])


dnl AC_C_ATTRIBUTE_ALIGNED
dnl define ATTRIBUTE_ALIGNED_MAX to the maximum alignment if this is supported
AC_DEFUN([AC_C_ATTRIBUTE_ALIGNED],
    [AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
        [ac_cv_c_attribute_aligned],
        [ac_cv_c_attribute_aligned=0
        for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
            AC_TRY_COMPILE([],
                [static char c __attribute__ ((aligned($ac_cv_c_attr_align_try))) = 0
; return c;],
                [ac_cv_c_attribute_aligned=$ac_cv_c_attr_align_try])
        done])
    if test x"$ac_cv_c_attribute_aligned" != x"0"; then
        AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
            [$ac_cv_c_attribute_aligned],[maximum supported data alignment])
    fi])

dnl AC_TRY_CFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
dnl check if $CC supports a given set of cflags
AC_DEFUN([AC_TRY_CFLAGS],
    [AC_MSG_CHECKING([if $CC supports $1 flags])
    SAVE_CFLAGS="$CFLAGS"
    CFLAGS="$1"
    AC_TRY_COMPILE([],[],[ac_cv_try_cflags_ok=yes],[ac_cv_try_cflags_ok=no])
    CFLAGS="$SAVE_CFLAGS"
    AC_MSG_RESULT([$ac_cv_try_cflags_ok])
    if test x"$ac_cv_try_cflags_ok" = x"yes"; then
        ifelse([$2],[],[:],[$2])
    else
        ifelse([$3],[],[:],[$3])
    fi])


dnl AC_CHECK_GENERATE_INTTYPES_H (INCLUDE-DIRECTORY)
dnl generate a default inttypes.h if the header file does not exist already
AC_DEFUN([AC_CHECK_GENERATE_INTTYPES],
    [AC_CHECK_HEADER([inttypes.h],[],
        [AC_COMPILE_CHECK_SIZEOF([char],[1])
        AC_COMPILE_CHECK_SIZEOF([short],[2])
        AC_COMPILE_CHECK_SIZEOF([int],[4])
        AC_COMPILE_CHECK_SIZEOF([long long],[8])
        cat >$1/inttypes.h << EOF
#ifndef _INTTYPES_H
#define _INTTYPES_H
/* default inttypes.h for people who do not have it on their system */
#if (!defined __int8_t_defined) && (!defined __BIT_TYPES_DEFINED__)
#define __int8_t_defined
typedef signed char int8_t;
typedef signed short int16_t;
typedef signed int int32_t;
#ifdef ARCH_X86
typedef signed long long int64_t;
#endif
#endif
#if (!defined _LINUX_TYPES_H)
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#ifdef ARCH_X86
typedef unsigned long long uint64_t;
#endif
#endif
#endif
EOF
        ])])


dnl AC_COMPILE_CHECK_SIZEOF (TYPE SUPPOSED-SIZE)
dnl abort if the given type does not have the supposed size
AC_DEFUN([AC_COMPILE_CHECK_SIZEOF],
    [AC_MSG_CHECKING(that size of $1 is $2)
    AC_TRY_COMPILE([],[switch (0) case 0: case (sizeof ($1) == $2):;],[],
        [AC_MSG_ERROR([can not build a default inttypes.h])])
    AC_MSG_RESULT([yes])])

dnl AC_TRY_LDFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
dnl check if $CC supports a given set of ldflags
AC_DEFUN([AC_TRY_LDFLAGS],
    [AC_MSG_CHECKING([if $CC supports $1 flags])
    SAVE_LDFLAGS="$LDFLAGS"
    LDFLAGS="$1"
    AC_TRY_LINK([],[],[ac_cv_try_ldflags_ok=yes],[ac_cv_try_ldflags_ok=no])
    LDFLAGS="$SAVE_LDFLAGS"
    AC_MSG_RESULT([$ac_cv_try_ldflags_ok])
    if test x"$ac_cv_try_ldflags_ok" = x"yes"; then
        ifelse([$2],[],[:],[$2])
    else
        ifelse([$3],[],[:],[$3])
    fi])