gstreamer/m4/vorbis.m4

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# Configure paths for libvorbis
# Jack Moffitt <jack@icecast.org> 10-21-2000
# Shamelessly stolen from Owen Taylor and Manish Singh
dnl AM_PATH_VORBIS([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
dnl Test for libvorbis, and define VORBIS_CFLAGS and VORBIS_LIBS
dnl
AC_DEFUN(AM_PATH_VORBIS,
[dnl
dnl Get the cflags and libraries
dnl
AC_ARG_WITH(vorbis-prefix,
AC_HELP_STRING([--with-vorbis-prefix=PFX],
[prefix where libvorbis is installed (optional)]),
vorbis_prefix="$withval", vorbis_prefix="")
AC_ARG_ENABLE(vorbistest,
AC_HELP_STRING([--disable-vorbistest],
[do not try to compile and run a test Vorbis program]),
, enable_vorbistest=yes)
if test "x$vorbis_prefix" != "xNONE" ; then
vorbis_args="$vorbis_args --prefix=$vorbis_prefix"
VORBIS_CFLAGS="-I$vorbis_prefix/include"
VORBIS_LIBDIR="-L$vorbis_prefix/lib"
elif test "$prefix" != ""; then
vorbis_args="$vorbis_args --prefix=$prefix"
VORBIS_CFLAGS="-I$prefix/include"
VORBIS_LIBDIR="-L$prefix/lib"
fi
VORBIS_LIBS="$VORBIS_LIBDIR -lvorbis -lm"
VORBISFILE_LIBS="-lvorbisfile"
VORBISENC_LIBS="-lvorbisenc"
AC_MSG_CHECKING(for Vorbis)
no_vorbis=""
if test "x$enable_vorbistest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $VORBIS_CFLAGS"
LIBS="$LIBS $VORBIS_LIBS $OGG_LIBS"
dnl
dnl Now check if the installed Vorbis is sufficiently new.
dnl
rm -f conf.vorbistest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vorbis/codec.h>
int main ()
{
system("touch conf.vorbistest");
return 0;
}
],, no_vorbis=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
if test "x$no_vorbis" = "x" ; then
AC_MSG_RESULT(yes)
ifelse([$1], , :, [$1])
else
AC_MSG_RESULT(no)
if test -f conf.vorbistest ; then
:
else
echo "*** Could not run Vorbis test program, checking why..."
CFLAGS="$CFLAGS $VORBIS_CFLAGS"
LIBS="$LIBS $VORBIS_LIBS $OGG_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <vorbis/codec.h>
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding Vorbis or finding the wrong"
echo "*** version of Vorbis. If it is not finding Vorbis, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means Vorbis was incorrectly installed"
echo "*** or that you have moved Vorbis since it was installed." ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
VORBIS_CFLAGS=""
VORBIS_LIBS=""
VORBISFILE_LIBS=""
VORBISENC_LIBS=""
ifelse([$2], , :, [$2])
fi
AC_SUBST(VORBIS_CFLAGS)
AC_SUBST(VORBIS_LIBS)
AC_SUBST(VORBISFILE_LIBS)
AC_SUBST(VORBISENC_LIBS)
rm -f conf.vorbistest
])