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# Configure paths for libogg
# Jack Moffitt <jack@icecast.org> 10-21-2000
# Shamelessly stolen from Owen Taylor and Manish Singh
dnl AM_PATH_OGG([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for libogg, and define OGG_CFLAGS and OGG_LIBS
dnl
AC_DEFUN(AM_PATH_OGG,
[dnl
dnl Get the cflags and libraries from the ogg-config script
dnl
AC_ARG_WITH(ogg-prefix,[ --with-ogg-prefix=PFX Prefix where libogg is installed (optional)], ogg_prefix="$withval", ogg_prefix="")
AC_ARG_ENABLE(oggtest, [ --disable-oggtest Do not try to compile and run a test Ogg program],, enable_oggtest=yes)
if test x$ogg_prefix != x ; then
ogg_args="$ogg_args --prefix=$ogg_prefix"
if test x${OGG_CONFIG+set} != xset ; then
OGG_CONFIG=$ogg_prefix/bin/ogg-config
fi
fi
AC_PATH_PROG(OGG_CONFIG, ogg-config, no)
min_ogg_version=ifelse([$1], ,1.0.0,$1)
AC_MSG_CHECKING(for Ogg - version >= $min_ogg_version)
no_ogg=""
if test "$OGG_CONFIG" = "no" ; then
no_esd=yes
else
OGG_CFLAGS=`$OGG_CONFIG $oggconf_args --cflags`
OGG_LIBS=`$OGG_CONFIG $oggconf_args --libs`
ogg_major_version=`$OGG_CONFIG $ogg_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
ogg_minor_version=`$OGG_CONFIG $ogg_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
ogg_micro_version=`$OGG_CONFIG $ogg_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_oggtest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $OGG_CFLAGS"
LIBS="$LIBS $OGG_LIBS"
dnl
dnl Now check if the installed Ogg is sufficiently new. (Also sanity
dnl checks the results of ogg-config to some extent
dnl
rm -f conf.oggtest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ogg/ogg.h>
int main ()
{
system("touch conf.oggtest");
return 0;
}
],, no_ogg=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_ogg" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$OGG_CONFIG" = "no" ; then
echo "*** The ogg-config script installed by Ogg could not be found"
echo "*** If Ogg was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the OGG_CONFIG environment variable to the"
echo "*** full path to ogg-config."
else
if test -f conf.oggtest ; then
:
else
echo "*** Could not run Ogg test program, checking why..."
CFLAGS="$CFLAGS $OGG_CFLAGS"
LIBS="$LIBS $OGG_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <ogg/ogg.h>
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding Ogg or finding the wrong"
echo "*** version of Ogg. If it is not finding Ogg, 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 Ogg was incorrectly installed"
echo "*** or that you have moved Ogg since it was installed. In the latter case, you"
echo "*** may want to edit the ogg-config script: $OGG_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
OGG_CFLAGS=""
OGG_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(OGG_CFLAGS)
AC_SUBST(OGG_LIBS)
rm -f conf.oggtest
])
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