ref: 0f869cba0f271f3d9aee1289d490c44ce1e12975
dir: /opus.m4/
# Configure paths for libopus # Gregory Maxwell <[email protected]> 08-30-2012 # Shamelessly stolen from Jack Moffitt (libogg) who # Shamelessly stole from Owen Taylor and Manish Singh dnl XIPH_PATH_OPUS([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) dnl Test for libopus, and define OPUS_CFLAGS and OPUS_LIBS dnl AC_DEFUN([XIPH_PATH_OPUS], [dnl dnl Get the cflags and libraries dnl AC_ARG_WITH(opus,AC_HELP_STRING([--with-opus=PFX],[Prefix where opus is installed (optional)]), opus_prefix="$withval", opus_prefix="") AC_ARG_WITH(opus-libraries,AC_HELP_STRING([--with-opus-libraries=DIR],[Directory where the opus library is installed (optional)]), opus_libraries="$withval", opus_libraries="") AC_ARG_WITH(opus-includes,AC_HELP_STRING([--with-opus-includes=DIR],[Directory where the opus header files are installed (optional)]), opus_includes="$withval", opus_includes="") AC_ARG_ENABLE(opustest,AC_HELP_STRING([--disable-opustest],[Do not try to compile and run a test opus program]),, enable_opustest=yes) if test "x$opus_libraries" != "x" ; then OPUS_LIBS="-L$opus_libraries" elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then OPUS_LIBS="" elif test "x$opus_prefix" != "x" ; then OPUS_LIBS="-L$opus_prefix/lib" elif test "x$prefix" != "xNONE" ; then OPUS_LIBS="-L$prefix/lib" fi if test "x$opus_prefix" != "xno" ; then OPUS_LIBS="$OPUS_LIBS -lopus" fi if test "x$opus_includes" != "x" ; then OPUS_CFLAGS="-I$opus_includes" elif test "x$opus_prefix" = "xno" || test "x$opus_prefix" = "xyes" ; then OPUS_CFLAGS="" elif test "x$opus_prefix" != "x" ; then OPUS_CFLAGS="-I$opus_prefix/include" elif test "x$prefix" != "xNONE"; then OPUS_CFLAGS="-I$prefix/include" fi AC_MSG_CHECKING(for Opus) if test "x$opus_prefix" = "xno" ; then no_opus="disabled" enable_opustest="no" else no_opus="" fi if test "x$enable_opustest" = "xyes" ; then ac_save_CFLAGS="$CFLAGS" ac_save_LIBS="$LIBS" CFLAGS="$CFLAGS $OPUS_CFLAGS" LIBS="$LIBS $OPUS_LIBS" dnl dnl Now check if the installed Opus is sufficiently new. dnl rm -f conf.opustest AC_TRY_RUN([ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <opus.h> int main () { system("touch conf.opustest"); return 0; } ],, no_opus=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) CFLAGS="$ac_save_CFLAGS" LIBS="$ac_save_LIBS" fi if test "x$no_opus" = "xdisabled" ; then AC_MSG_RESULT(no) ifelse([$2], , :, [$2]) elif test "x$no_opus" = "x" ; then AC_MSG_RESULT(yes) ifelse([$1], , :, [$1]) else AC_MSG_RESULT(no) if test -f conf.opustest ; then : else echo "*** Could not run Opus test program, checking why..." CFLAGS="$CFLAGS $OPUS_CFLAGS" LIBS="$LIBS $OPUS_LIBS" AC_TRY_LINK([ #include <stdio.h> #include <opus.h> ], [ return 0; ], [ echo "*** The test program compiled, but did not run. This usually means" echo "*** that the run-time linker is not finding Opus or finding the wrong" echo "*** version of Opus. If it is not finding Opus, you'll need to set your" echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" echo "*** to the installed location Also, make sure you have run ldconfig if that" echo "*** is required on your system" echo "***" echo "*** If you have an old version installed, it is best to remove it, although" echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], [ echo "*** The test program failed to compile or link. See the file config.log for the" echo "*** exact error that occurred. This usually means Opus was incorrectly installed" echo "*** or that you have moved Opus since it was installed." ]) CFLAGS="$ac_save_CFLAGS" LIBS="$ac_save_LIBS" fi OPUS_CFLAGS="" OPUS_LIBS="" ifelse([$2], , :, [$2]) fi AC_SUBST(OPUS_CFLAGS) AC_SUBST(OPUS_LIBS) rm -f conf.opustest ])