# Configure paths for libFLAC # "Inspired" by ogg.m4 dnl AM_PATH_LIBFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) dnl Test for libFLAC, and define LIBFLAC_CFLAGS and LIBFLAC_LIBS dnl AC_DEFUN([AM_PATH_LIBFLAC], [dnl dnl Get the cflags and libraries dnl AC_ARG_WITH(libFLAC,[ --with-libFLAC=PFX Prefix where libFLAC is installed (optional)], libFLAC_prefix="$withval", libFLAC_prefix="") AC_ARG_WITH(libFLAC-libraries,[ --with-libFLAC-libraries=DIR Directory where libFLAC library is installed (optional)], libFLAC_libraries="$withval", libFLAC_libraries="") AC_ARG_WITH(libFLAC-includes,[ --with-libFLAC-includes=DIR Directory where libFLAC header files are installed (optional)], libFLAC_includes="$withval", libFLAC_includes="") AC_ARG_ENABLE(libFLACtest, [ --disable-libFLACtest Do not try to compile and run a test libFLAC program],, enable_libFLACtest=yes) if test "x$libFLAC_libraries" != "x" ; then LIBFLAC_LIBS="-L$libFLAC_libraries" elif test "x$libFLAC_prefix" != "x" ; then LIBFLAC_LIBS="-L$libFLAC_prefix/lib" elif test "x$prefix" != "xNONE" ; then LIBFLAC_LIBS="-L$libdir" fi LIBFLAC_LIBS="$LIBFLAC_LIBS -lFLAC -lm" if test "x$libFLAC_includes" != "x" ; then LIBFLAC_CFLAGS="-I$libFLAC_includes" elif test "x$libFLAC_prefix" != "x" ; then LIBFLAC_CFLAGS="-I$libFLAC_prefix/include" elif test "$prefix" != "xNONE"; then LIBFLAC_CFLAGS="-I$libdir" fi AC_MSG_CHECKING(for libFLAC) no_libFLAC="" if test "x$enable_libFLACtest" = "xyes" ; then ac_save_CFLAGS="$CFLAGS" ac_save_CXXFLAGS="$CXXFLAGS" ac_save_LIBS="$LIBS" CFLAGS="$CFLAGS $LIBFLAC_CFLAGS" CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS" LIBS="$LIBS $LIBFLAC_LIBS" dnl dnl Now check if the installed libFLAC is sufficiently new. dnl rm -f conf.libFLACtest AC_TRY_RUN([ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <FLAC/format.h> int main () { system("touch conf.libFLACtest"); return 0; } ],, no_libFLAC=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) CFLAGS="$ac_save_CFLAGS" LIBS="$ac_save_LIBS" fi if test "x$no_libFLAC" = "x" ; then AC_MSG_RESULT(yes) ifelse([$1], , :, [$1]) else AC_MSG_RESULT(no) if test -f conf.libFLACtest ; then : else echo "*** Could not run libFLAC test program, checking why..." CFLAGS="$CFLAGS $LIBFLAC_CFLAGS" LIBS="$LIBS $LIBFLAC_LIBS" AC_TRY_LINK([ #include <stdio.h> #include <FLAC/format.h> ], [ return 0; ], [ echo "*** The test program compiled, but did not run. This usually means" echo "*** that the run-time linker is not finding libFLAC or finding the wrong" echo "*** version of libFLAC. If it is not finding libFLAC, 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 libFLAC was incorrectly installed" echo "*** or that you have moved libFLAC since it was installed. In the latter case, you" echo "*** may want to edit the libFLAC-config script: $LIBFLAC_CONFIG" ]) CFLAGS="$ac_save_CFLAGS" LIBS="$ac_save_LIBS" fi LIBFLAC_CFLAGS="" LIBFLAC_LIBS="" ifelse([$2], , :, [$2]) fi AC_SUBST(LIBFLAC_CFLAGS) AC_SUBST(LIBFLAC_LIBS) rm -f conf.libFLACtest ])