ref: 4e411db85d5d89030440a7faa3106486c6ca26ea
dir: /m4/libopusenc.m4/
# Configure paths for libopusenc # Jean-Marc Valin <jmvalin@jmvalin.ca> 11-12-2017 # Jack Moffitt <jack@icecast.org> 10-21-2000 # Shamelessly stolen from Owen Taylor and Manish Singh dnl XIPH_PATH_LIBOPUSENC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) dnl Test for libopusenc, and define LIBOPUSENC_CFLAGS and LIBOPUSENC_LIBS dnl AC_DEFUN([XIPH_PATH_LIBOPUSENC], [dnl dnl Get the cflags and libraries dnl AC_ARG_WITH(libopusenc,AC_HELP_STRING([--with-libopusenc=PFX],[Prefix where libopusenc is installed (optional)]), libopusenc_prefix="$withval", libopusenc_prefix="") AC_ARG_WITH(libopusenc-libraries,AC_HELP_STRING([--with-libopusenc-libraries=DIR],[Directory where libopusenc library is installed (optional)]), libopusenc_libraries="$withval", libopusenc_libraries="") AC_ARG_WITH(libopusenc-includes,AC_HELP_STRING([--with-libopusenc-includes=DIR],[Directory where libopusenc header files are installed (optional)]), libopusenc_includes="$withval", libopusenc_includes="") AC_ARG_ENABLE(libopusenctest,AC_HELP_STRING([--disable-libopusenctest],[Do not try to compile and run a test libopusenc program]),, enable_libopusenctest=yes) if test "x$libopusenc_libraries" != "x" ; then LIBOPUSENC_LIBS="-L$libopusenc_libraries" elif test "x$libopusenc_prefix" = "xno" || test "x$libopusenc_prefix" = "xyes" ; then LIBOPUSENC_LIBS="" elif test "x$libopusenc_prefix" != "x" ; then LIBOPUSENC_LIBS="-L$libopusenc_prefix/lib" elif test "x$prefix" != "xNONE" ; then LIBOPUSENC_LIBS="-L$prefix/lib" fi if test "x$libopusenc_prefix" != "xno" ; then LIBOPUSENC_LIBS="$LIBOPUSENC_LIBS -lopusenc" fi if test "x$libopusenc_includes" != "x" ; then LIBOPUSENC_CFLAGS="-I$libopusenc_includes" elif test "x$libopusenc_prefix" = "xno" || test "x$libopusenc_prefix" = "xyes" ; then LIBOPUSENC_CFLAGS="" elif test "x$libopusenc_prefix" != "x" ; then LIBOPUSENC_CFLAGS="-I$libopusenc_prefix/include/opus" elif test "x$prefix" != "xNONE"; then LIBOPUSENC_CFLAGS="-I$prefix/include/opus" fi AC_MSG_CHECKING(for libopusenc) if test "x$libopusenc_prefix" = "xno" ; then no_libopusenc="disabled" enable_libopusenctest="no" else no_libopusenc="" fi if test "x$enable_libopusenctest" = "xyes" ; then ac_save_CFLAGS="$CFLAGS" ac_save_LIBS="$LIBS" CFLAGS="$CFLAGS $LIBOPUSENC_CFLAGS $OPUS_CFLAGS" LIBS="$LIBS $LIBOPUSENC_LIBS $OPUS_LIBS" dnl dnl Now check if the installed libopusenc is sufficiently new. dnl rm -f conf.libopusenctest AC_TRY_RUN([ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <opusenc.h> int main () { system("touch conf.libopusenctest"); return 0; } ],, no_libopusenc=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) CFLAGS="$ac_save_CFLAGS" LIBS="$ac_save_LIBS" fi if test "x$no_libopusenc" = "xdisabled" ; then AC_MSG_RESULT(no) ifelse([$2], , :, [$2]) elif test "x$no_libopusenc" = "x" ; then AC_MSG_RESULT(yes) ifelse([$1], , :, [$1]) else AC_MSG_RESULT(no) if test -f conf.libopusenctest ; then : else echo "*** Could not run libopusenc test program, checking why..." CFLAGS="$CFLAGS $LIBOPUSENC_CFLAGS" LIBS="$LIBS $LIBOPUSENC_LIBS" AC_TRY_LINK([ #include <stdio.h> #include <opusenc.h> ], [ return 0; ], [ echo "*** The test program compiled, but did not run. This usually means" echo "*** that the run-time linker is not finding libopusenc or finding the wrong" echo "*** version of libopusenc. If it is not finding libopusenc, you'll need to set your" echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" echo "*** to the installed location Also, make sure you have run ldconfig if that" echo "*** is required on your system" echo "***" echo "*** If you have an old version installed, it is best to remove it, although" echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], [ echo "*** The test program failed to compile or link. See the file config.log for the" echo "*** exact error that occured. This usually means libopusenc was incorrectly installed" echo "*** or that you have moved libopusenc since it was installed." ]) CFLAGS="$ac_save_CFLAGS" LIBS="$ac_save_LIBS" fi LIBOPUSENC_CFLAGS="" LIBOPUSENC_LIBS="" ifelse([$2], , :, [$2]) fi AC_SUBST(LIBOPUSENC_CFLAGS) AC_SUBST(LIBOPUSENC_LIBS) rm -f conf.libopusenctest ])