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