# Configure paths for SMPEG
# Nicolas Vignal 11/19/2000
# stolen from Sam Lantinga
# stolen from Manish Singh
# stolen back from Frank Belew
# stolen from Manish Singh
# Shamelessly stolen from Owen Taylor
dnl AM_PATH_SMPEG([MINIMUM-VERSION, [ACTION-IF-FOUND [,
ACTION-IF-NOT-FOUND]]])
dnl Test for SMPEG, and define SMPEG_CFLAGS and SMPEG_LIBS
dnl
AC_DEFUN(AM_PATH_SMPEG,
[dnl
dnl Get the cflags and libraries from the smpeg-config script
dnl
AC_ARG_WITH(smpeg-prefix,[ --with-smpeg-prefix=PFX Prefix where SMPEG is installed (optional)],
smpeg_prefix="$withval", smpeg_prefix="")
AC_ARG_WITH(smpeg-exec-prefix,[ --with-smpeg-exec-prefix=PFX Exec prefix where SMPEG is installed (optional)],
smpeg_exec_prefix="$withval", smpeg_exec_prefix="")
AC_ARG_ENABLE(smpegtest, [ --disable-smpegtest Do not try to compile and run a test SMPEG program],
, enable_smpegtest=yes)
if test x$smpeg_exec_prefix != x ; then
smpeg_args="$smpeg_args --exec-prefix=$smpeg_exec_prefix"
if test x${SMPEG_CONFIG+set} != xset ; then
SMPEG_CONFIG=$smpeg_exec_prefix/bin/smpeg-config
fi
fi
if test x$smpeg_prefix != x ; then
smpeg_args="$smpeg_args --prefix=$smpeg_prefix"
if test x${SMPEG_CONFIG+set} != xset ; then
SMPEG_CONFIG=$smpeg_prefix/bin/smpeg-config
fi
fi
AC_PATH_PROG(SMPEG_CONFIG, smpeg-config, no)
min_smpeg_version=ifelse([$1], ,0.2.7,$1)
AC_MSG_CHECKING(for SMPEG - version >= $min_smpeg_version)
no_smpeg=""
if test "$SMPEG_CONFIG" = "no" ; then
no_smpeg=yes
else
SMPEG_CFLAGS=`$SMPEG_CONFIG $smpegconf_args --cflags`
SMPEG_LIBS=`$SMPEG_CONFIG $smpegconf_args --libs`
smpeg_major_version=`$SMPEG_CONFIG $smpeg_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
smpeg_minor_version=`$SMPEG_CONFIG $smpeg_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
smpeg_micro_version=`$SMPEG_CONFIG $smpeg_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_smpegtest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $SMPEG_CFLAGS $SDL_CFLAGS"
LIBS="$LIBS $SMPEG_LIBS $SDL_LIBS"
dnl
dnl Now check if the installed SMPEG is sufficiently new. (Also sanity
dnl checks the results of smpeg-config to some extent
dnl
rm -f conf.smpegtest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "smpeg.h"
char*
my_strdup (char *str)
{
char *new_str;
if (str)
{
new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
strcpy (new_str, str);
}
else
new_str = NULL;
return new_str;
}
int main (int argc, char *argv[])
{
int major, minor, micro;
char *tmp_version;
/* This hangs on some systems (?)
system ("touch conf.smpegtest");
*/
{ FILE *fp = fopen("conf.smpegtest", "a"); if ( fp ) fclose(fp); }
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = my_strdup("$min_smpeg_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
printf("%s, bad version string\n", "$min_smpeg_version");
exit(1);
}
if (($smpeg_major_version > major) ||
(($smpeg_major_version == major) && ($smpeg_minor_version > minor)) ||
(($smpeg_major_version == major) && ($smpeg_minor_version == minor) && ($smpeg_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** 'smpeg-config --version' returned %d.%d.%d, but the minimum version\n", $smpeg_major_version, $smpeg_minor_version, $smpeg_micro_version);
printf("*** of SMPEG required is %d.%d.%d. If smpeg-config is correct, then it is\n", major, minor, micro);
printf("*** best to upgrade to the required version.\n");
printf("*** If smpeg-config was wrong, set the environment variable SMPEG_CONFIG\n");
printf("*** to point to the correct copy of smpeg-config, and remove the file\n");
printf("*** config.cache before re-running configure\n");
return 1;
}
}
],, no_smpeg=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_smpeg" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$SMPEG_CONFIG" = "no" ; then
echo "*** The smpeg-config script installed by SMPEG could not be found"
echo "*** If SMPEG was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the SMPEG_CONFIG environment variable to the"
echo "*** full path to smpeg-config."
else
if test -f conf.smpegtest ; then
:
else
echo "*** Could not run SMPEG test program, checking why..."
CFLAGS="$CFLAGS $SMPEG_CFLAGS $SDL_CFLAGS"
LIBS="$LIBS $SMPEG_LIBS $SDL_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include "smpeg.h"
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding SMPEG or finding the wrong"
echo "*** version of SMPEG. If it is not finding SMPEG, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means SMPEG was incorrectly installed"
echo "*** or that you have moved SMPEG since it was installed. In the latter case, you"
echo "*** may want to edit the smpeg-config script: $SMPEG_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
SMPEG_CFLAGS=""
SMPEG_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(SMPEG_CFLAGS)
AC_SUBST(SMPEG_LIBS)
rm -f conf.smpegtest
])