cannam@86: # Configure paths for libogg
cannam@86: # Jack Moffitt <jack@icecast.org> 10-21-2000
cannam@86: # Shamelessly stolen from Owen Taylor and Manish Singh
cannam@86: 
cannam@86: dnl XIPH_PATH_OGG([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
cannam@86: dnl Test for libogg, and define OGG_CFLAGS and OGG_LIBS
cannam@86: dnl
cannam@86: AC_DEFUN([XIPH_PATH_OGG],
cannam@86: [dnl 
cannam@86: dnl Get the cflags and libraries
cannam@86: dnl
cannam@86: AC_ARG_WITH(ogg,AC_HELP_STRING([--with-ogg=PFX],[Prefix where libogg is installed (optional)]), ogg_prefix="$withval", ogg_prefix="")
cannam@86: AC_ARG_WITH(ogg-libraries,AC_HELP_STRING([--with-ogg-libraries=DIR],[Directory where libogg library is installed (optional)]), ogg_libraries="$withval", ogg_libraries="")
cannam@86: AC_ARG_WITH(ogg-includes,AC_HELP_STRING([--with-ogg-includes=DIR],[Directory where libogg header files are installed (optional)]), ogg_includes="$withval", ogg_includes="")
cannam@86: AC_ARG_ENABLE(oggtest,AC_HELP_STRING([--disable-oggtest],[Do not try to compile and run a test Ogg program]),, enable_oggtest=yes)
cannam@86: 
cannam@86:   if test "x$ogg_libraries" != "x" ; then
cannam@86:     OGG_LIBS="-L$ogg_libraries"
cannam@86:   elif test "x$ogg_prefix" = "xno" || test "x$ogg_prefix" = "xyes" ; then
cannam@86:     OGG_LIBS=""
cannam@86:   elif test "x$ogg_prefix" != "x" ; then
cannam@86:     OGG_LIBS="-L$ogg_prefix/lib"
cannam@86:   elif test "x$prefix" != "xNONE" ; then
cannam@86:     OGG_LIBS="-L$prefix/lib"
cannam@86:   fi
cannam@86: 
cannam@86:   if test "x$ogg_prefix" != "xno" ; then
cannam@86:     OGG_LIBS="$OGG_LIBS -logg"
cannam@86:   fi
cannam@86: 
cannam@86:   if test "x$ogg_includes" != "x" ; then
cannam@86:     OGG_CFLAGS="-I$ogg_includes"
cannam@86:   elif test "x$ogg_prefix" = "xno" || test "x$ogg_prefix" = "xyes" ; then
cannam@86:     OGG_CFLAGS=""
cannam@86:   elif test "x$ogg_prefix" != "x" ; then
cannam@86:     OGG_CFLAGS="-I$ogg_prefix/include"
cannam@86:   elif test "x$prefix" != "xNONE"; then
cannam@86:     OGG_CFLAGS="-I$prefix/include"
cannam@86:   fi
cannam@86: 
cannam@86:   AC_MSG_CHECKING(for Ogg)
cannam@86:   if test "x$ogg_prefix" = "xno" ; then
cannam@86:     no_ogg="disabled"
cannam@86:     enable_oggtest="no"
cannam@86:   else
cannam@86:     no_ogg=""
cannam@86:   fi
cannam@86: 
cannam@86: 
cannam@86:   if test "x$enable_oggtest" = "xyes" ; then
cannam@86:     ac_save_CFLAGS="$CFLAGS"
cannam@86:     ac_save_LIBS="$LIBS"
cannam@86:     CFLAGS="$CFLAGS $OGG_CFLAGS"
cannam@86:     LIBS="$LIBS $OGG_LIBS"
cannam@86: dnl
cannam@86: dnl Now check if the installed Ogg is sufficiently new.
cannam@86: dnl
cannam@86:       rm -f conf.oggtest
cannam@86:       AC_TRY_RUN([
cannam@86: #include <stdio.h>
cannam@86: #include <stdlib.h>
cannam@86: #include <string.h>
cannam@86: #include <ogg/ogg.h>
cannam@86: 
cannam@86: int main ()
cannam@86: {
cannam@86:   system("touch conf.oggtest");
cannam@86:   return 0;
cannam@86: }
cannam@86: 
cannam@86: ],, no_ogg=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
cannam@86:        CFLAGS="$ac_save_CFLAGS"
cannam@86:        LIBS="$ac_save_LIBS"
cannam@86:   fi
cannam@86: 
cannam@86:   if test "x$no_ogg" = "xdisabled" ; then
cannam@86:      AC_MSG_RESULT(no)
cannam@86:      ifelse([$2], , :, [$2])
cannam@86:   elif test "x$no_ogg" = "x" ; then
cannam@86:      AC_MSG_RESULT(yes)
cannam@86:      ifelse([$1], , :, [$1])
cannam@86:   else
cannam@86:      AC_MSG_RESULT(no)
cannam@86:      if test -f conf.oggtest ; then
cannam@86:        :
cannam@86:      else
cannam@86:        echo "*** Could not run Ogg test program, checking why..."
cannam@86:        CFLAGS="$CFLAGS $OGG_CFLAGS"
cannam@86:        LIBS="$LIBS $OGG_LIBS"
cannam@86:        AC_TRY_LINK([
cannam@86: #include <stdio.h>
cannam@86: #include <ogg/ogg.h>
cannam@86: ],     [ return 0; ],
cannam@86:        [ echo "*** The test program compiled, but did not run. This usually means"
cannam@86:        echo "*** that the run-time linker is not finding Ogg or finding the wrong"
cannam@86:        echo "*** version of Ogg. If it is not finding Ogg, you'll need to set your"
cannam@86:        echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
cannam@86:        echo "*** to the installed location  Also, make sure you have run ldconfig if that"
cannam@86:        echo "*** is required on your system"
cannam@86:        echo "***"
cannam@86:        echo "*** If you have an old version installed, it is best to remove it, although"
cannam@86:        echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
cannam@86:        [ echo "*** The test program failed to compile or link. See the file config.log for the"
cannam@86:        echo "*** exact error that occured. This usually means Ogg was incorrectly installed"
cannam@86:        echo "*** or that you have moved Ogg since it was installed." ])
cannam@86:        CFLAGS="$ac_save_CFLAGS"
cannam@86:        LIBS="$ac_save_LIBS"
cannam@86:      fi
cannam@86:      OGG_CFLAGS=""
cannam@86:      OGG_LIBS=""
cannam@86:      ifelse([$2], , :, [$2])
cannam@86:   fi
cannam@86:   AC_SUBST(OGG_CFLAGS)
cannam@86:   AC_SUBST(OGG_LIBS)
cannam@86:   rm -f conf.oggtest
cannam@86: ])