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-rw-r--r--m4/ao.m4112
1 files changed, 112 insertions, 0 deletions
diff --git a/m4/ao.m4 b/m4/ao.m4
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index 000000000..a2bfa67de
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+++ 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
+])