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Diffstat (limited to '')
| -rw-r--r-- | m4/ao.m4 | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/m4/ao.m4 b/m4/ao.m4 new file mode 100644 index 000000000..a2bfa67de --- /dev/null +++ b/m4/ao.m4 @@ -0,0 +1,112 @@ +# ao.m4 +# Configure paths for libao +# Jack Moffitt <jack@icecast.org> 10-21-2000 +# Shamelessly stolen from Owen Taylor and Manish Singh + +dnl XIPH_PATH_AO([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) +dnl Test for libao, and define AO_CFLAGS and AO_LIBS +dnl +AC_DEFUN(XIPH_PATH_AO, +[dnl +dnl Get the cflags and libraries +dnl +AC_ARG_WITH(ao,[ --with-ao=PFX Prefix where libao is installed (optional)], ao_prefix="$withval", ao_prefix="") +AC_ARG_WITH(ao-libraries,[ --with-ao-libraries=DIR Directory where libao library is installed (optional)], ao_libraries="$withval", ao_libraries="") +AC_ARG_WITH(ao-includes,[ --with-ao-includes=DIR Directory where libao header files are installed (optional)], ao_includes="$withval", ao_includes="") +AC_ARG_ENABLE(aotest, [ --disable-aotest Do not try to compile and run a test ao program],, enable_aotest=yes) + + + if test "x$ao_libraries" != "x" ; then + AO_LIBS="-L$ao_libraries" + elif test "x$ao_prefix" != "x"; then + AO_LIBS="-L$ao_prefix/lib" + elif test "x$prefix" != "xNONE"; then + AO_LIBS="-L$prefix/lib" + fi + + if test "x$ao_includes" != "x" ; then + AO_CFLAGS="-I$ao_includes" + elif test "x$ao_prefix" != "x"; then + AO_CFLAGS="-I$ao_prefix/include" + elif test "x$prefix" != "xNONE"; then + AO_CFLAGS="-I$prefix/include" + fi + + # see where dl* and friends live + AC_CHECK_FUNCS(dlopen, [AO_DL_LIBS=""], [ + AC_CHECK_LIB(dl, dlopen, [AO_DL_LIBS="-ldl"], [ + AC_MSG_WARN([could not find dlopen() needed by libao sound drivers + your system may not be supported.]) + ]) + ]) + + AO_LIBS="$AO_LIBS -lao $AO_DL_LIBS" + + AC_MSG_CHECKING(for ao) + no_ao="" + + + if test "x$enable_aotest" = "xyes" ; then + ac_save_CFLAGS="$CFLAGS" + ac_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $AO_CFLAGS" + LIBS="$LIBS $AO_LIBS" +dnl +dnl Now check if the installed ao is sufficiently new. +dnl + rm -f conf.aotest + AC_TRY_RUN([ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ao/ao.h> + +int main () +{ + system("touch conf.aotest"); + return 0; +} + +],, no_ao=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + fi + + if test "x$no_ao" = "x" ; then + AC_MSG_RESULT(yes) + ifelse([$1], , :, [$1]) + else + AC_MSG_RESULT(no) + if test -f conf.aotest ; then + : + else + echo "*** Could not run ao test program, checking why..." + CFLAGS="$CFLAGS $AO_CFLAGS" + LIBS="$LIBS $AO_LIBS" + AC_TRY_LINK([ +#include <stdio.h> +#include <ao/ao.h> +], [ return 0; ], + [ echo "*** The test program compiled, but did not run. This usually means" + echo "*** that the run-time linker is not finding ao or finding the wrong" + echo "*** version of ao. If it is not finding ao, you'll need to set your" + echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" + echo "*** to the installed location Also, make sure you have run ldconfig if that" + echo "*** is required on your system" + echo "***" + echo "*** If you have an old version installed, it is best to remove it, although" + echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], + [ echo "*** The test program failed to compile or link. See the file config.log for the" + echo "*** exact error that occured. This usually means ao was incorrectly installed" + echo "*** or that you have moved ao since it was installed." ]) + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + fi + AO_CFLAGS="" + AO_LIBS="" + ifelse([$2], , :, [$2]) + fi + AC_SUBST(AO_CFLAGS) + AC_SUBST(AO_LIBS) + rm -f conf.aotest +]) |