acinclude/esd.m4
author Sam Lantinga <slouken@libsdl.org>
Sun, 04 Oct 2009 20:44:04 +0000
changeset 3342 3da232c5980a
permissions -rw-r--r--
Split acinclude.m4 into its constituent parts for easy upgrading
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##############################################################################
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#
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# --- esd.m4 ---
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#
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# Configure paths for ESD
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# Manish Singh    98-9-30
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# stolen back from Frank Belew
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# stolen from Manish Singh
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# Shamelessly stolen from Owen Taylor
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dnl AM_PATH_ESD([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
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dnl Test for ESD, and define ESD_CFLAGS and ESD_LIBS
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dnl
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AC_DEFUN([AM_PATH_ESD],
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[dnl 
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dnl Get the cflags and libraries from the esd-config script
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dnl
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AC_ARG_WITH(esd-prefix,[  --with-esd-prefix=PFX   Prefix where ESD is installed (optional)],
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            esd_prefix="$withval", esd_prefix="")
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AC_ARG_WITH(esd-exec-prefix,[  --with-esd-exec-prefix=PFX Exec prefix where ESD is installed (optional)],
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            esd_exec_prefix="$withval", esd_exec_prefix="")
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AC_ARG_ENABLE(esdtest, [  --disable-esdtest       Do not try to compile and run a test ESD program],
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		    , enable_esdtest=yes)
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  if test x$esd_exec_prefix != x ; then
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     esd_args="$esd_args --exec-prefix=$esd_exec_prefix"
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     if test x${ESD_CONFIG+set} != xset ; then
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        ESD_CONFIG=$esd_exec_prefix/bin/esd-config
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     fi
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  fi
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  if test x$esd_prefix != x ; then
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     esd_args="$esd_args --prefix=$esd_prefix"
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     if test x${ESD_CONFIG+set} != xset ; then
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        ESD_CONFIG=$esd_prefix/bin/esd-config
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     fi
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  fi
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  AC_PATH_PROG(ESD_CONFIG, esd-config, no)
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  min_esd_version=ifelse([$1], ,0.2.7,$1)
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  AC_MSG_CHECKING(for ESD - version >= $min_esd_version)
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  no_esd=""
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  if test "$ESD_CONFIG" = "no" ; then
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    no_esd=yes
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  else
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    ESD_CFLAGS=`$ESD_CONFIG $esdconf_args --cflags`
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    ESD_LIBS=`$ESD_CONFIG $esdconf_args --libs`
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    esd_major_version=`$ESD_CONFIG $esd_args --version | \
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           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
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    esd_minor_version=`$ESD_CONFIG $esd_args --version | \
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           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
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    esd_micro_version=`$ESD_CONFIG $esd_config_args --version | \
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           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
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    if test "x$enable_esdtest" = "xyes" ; then
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      ac_save_CFLAGS="$CFLAGS"
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      ac_save_LIBS="$LIBS"
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      CFLAGS="$CFLAGS $ESD_CFLAGS"
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      LIBS="$LIBS $ESD_LIBS"
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dnl
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dnl Now check if the installed ESD is sufficiently new. (Also sanity
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dnl checks the results of esd-config to some extent
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dnl
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      rm -f conf.esdtest
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      AC_TRY_RUN([
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <esd.h>
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char*
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my_strdup (char *str)
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{
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  char *new_str;
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  if (str)
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    {
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      new_str = malloc ((strlen (str) + 1) * sizeof(char));
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      strcpy (new_str, str);
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    }
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  else
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    new_str = NULL;
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  return new_str;
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}
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int main ()
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{
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  int major, minor, micro;
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  char *tmp_version;
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  system ("touch conf.esdtest");
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  /* HP/UX 9 (%@#!) writes to sscanf strings */
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  tmp_version = my_strdup("$min_esd_version");
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  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
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     printf("%s, bad version string\n", "$min_esd_version");
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     exit(1);
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   }
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   if (($esd_major_version > major) ||
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      (($esd_major_version == major) && ($esd_minor_version > minor)) ||
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      (($esd_major_version == major) && ($esd_minor_version == minor) && ($esd_micro_version >= micro)))
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    {
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      return 0;
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    }
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  else
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    {
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      printf("\n*** 'esd-config --version' returned %d.%d.%d, but the minimum version\n", $esd_major_version, $esd_minor_version, $esd_micro_version);
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      printf("*** of ESD required is %d.%d.%d. If esd-config is correct, then it is\n", major, minor, micro);
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      printf("*** best to upgrade to the required version.\n");
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      printf("*** If esd-config was wrong, set the environment variable ESD_CONFIG\n");
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      printf("*** to point to the correct copy of esd-config, and remove the file\n");
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      printf("*** config.cache before re-running configure\n");
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      return 1;
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    }
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}
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],, no_esd=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
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       CFLAGS="$ac_save_CFLAGS"
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       LIBS="$ac_save_LIBS"
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     fi
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  fi
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  if test "x$no_esd" = x ; then
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     AC_MSG_RESULT(yes)
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     ifelse([$2], , :, [$2])     
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  else
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     AC_MSG_RESULT(no)
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     if test "$ESD_CONFIG" = "no" ; then
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       echo "*** The esd-config script installed by ESD could not be found"
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       echo "*** If ESD was installed in PREFIX, make sure PREFIX/bin is in"
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       echo "*** your path, or set the ESD_CONFIG environment variable to the"
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       echo "*** full path to esd-config."
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     else
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       if test -f conf.esdtest ; then
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        :
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       else
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          echo "*** Could not run ESD test program, checking why..."
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          CFLAGS="$CFLAGS $ESD_CFLAGS"
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          LIBS="$LIBS $ESD_LIBS"
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          AC_TRY_LINK([
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#include <stdio.h>
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#include <esd.h>
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],      [ return 0; ],
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        [ echo "*** The test program compiled, but did not run. This usually means"
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          echo "*** that the run-time linker is not finding ESD or finding the wrong"
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          echo "*** version of ESD. If it is not finding ESD, you'll need to set your"
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          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
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          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
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          echo "*** is required on your system"
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	  echo "***"
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          echo "*** If you have an old version installed, it is best to remove it, although"
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          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
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        [ echo "*** The test program failed to compile or link. See the file config.log for the"
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          echo "*** exact error that occured. This usually means ESD was incorrectly installed"
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          echo "*** or that you have moved ESD since it was installed. In the latter case, you"
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          echo "*** may want to edit the esd-config script: $ESD_CONFIG" ])
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          CFLAGS="$ac_save_CFLAGS"
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          LIBS="$ac_save_LIBS"
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       fi
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     fi
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     ESD_CFLAGS=""
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     ESD_LIBS=""
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     ifelse([$3], , :, [$3])
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  fi
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  AC_SUBST(ESD_CFLAGS)
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  AC_SUBST(ESD_LIBS)
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  rm -f conf.esdtest
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])