smpeg.m4
上传用户:nini_0081
上传日期:2022-07-21
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文件大小:6k
- ##############################################################################
- # 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 stringn", "$min_smpeg_version");
- exit(1);
- }
- if (($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 versionn", $smpeg_major_version, $smpeg_minor_version, $smpeg_micro_version);
- printf("*** of SMPEG required is %d.%d.%d. If smpeg-config is correct, then it isn", major, minor, micro);
- printf("*** best to upgrade to the required version.n");
- printf("*** If smpeg-config was wrong, set the environment variable SMPEG_CONFIGn");
- printf("*** to point to the correct copy of smpeg-config, and remove the filen");
- printf("*** config.cache before re-running configuren");
- 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
- ])