1 # Configure paths for libFLAC
4 dnl AM_PATH_LIBFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
5 dnl Test for libFLAC, and define LIBFLAC_CFLAGS, LIBFLAC_LIBS, LIBFLAC_LIBDIR
7 AC_DEFUN([AM_PATH_LIBFLAC],
9 dnl Get the cflags and libraries
11 AC_ARG_WITH(libFLAC,[ --with-libFLAC=PFX Prefix where libFLAC is installed (optional)], libFLAC_prefix="$withval", libFLAC_prefix="")
12 AC_ARG_WITH(libFLAC-libraries,[ --with-libFLAC-libraries=DIR Directory where libFLAC library is installed (optional)], libFLAC_libraries="$withval", libFLAC_libraries="")
13 AC_ARG_WITH(libFLAC-includes,[ --with-libFLAC-includes=DIR Directory where libFLAC header files are installed (optional)], libFLAC_includes="$withval", libFLAC_includes="")
14 AC_ARG_ENABLE(libFLACtest, [ --disable-libFLACtest Do not try to compile and run a test libFLAC program],, enable_libFLACtest=yes)
16 if test "x$libFLAC_libraries" != "x" ; then
17 LIBFLAC_LIBDIR="$libFLAC_libraries"
18 elif test "x$libFLAC_prefix" != "x" ; then
19 LIBFLAC_LIBDIR="$libFLAC_prefix/lib"
20 elif test "x$prefix" != "xNONE" ; then
21 LIBFLAC_LIBDIR="$libdir"
24 LIBFLAC_LIBS="-L$LIBFLAC_LIBDIR -lFLAC $OGG_LIBS -lm"
26 if test "x$libFLAC_includes" != "x" ; then
27 LIBFLAC_CFLAGS="-I$libFLAC_includes"
28 elif test "x$libFLAC_prefix" != "x" ; then
29 LIBFLAC_CFLAGS="-I$libFLAC_prefix/include"
30 elif test "$prefix" != "xNONE"; then
34 AC_MSG_CHECKING(for libFLAC)
38 if test "x$enable_libFLACtest" = "xyes" ; then
39 ac_save_CFLAGS="$CFLAGS"
40 ac_save_CXXFLAGS="$CXXFLAGS"
42 ac_save_LDPATH="$LD_LIBRARY_PATH"
43 CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
44 CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS"
45 LIBS="$LIBS $LIBFLAC_LIBS"
46 LD_LIBRARY_PATH="$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
48 dnl Now check if the installed libFLAC is sufficiently new.
50 rm -f conf.libFLACtest
55 #include <FLAC/format.h>
59 system("touch conf.libFLACtest");
63 ],, no_libFLAC=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
64 CFLAGS="$ac_save_CFLAGS"
65 CXXFLAGS="$ac_save_CXXFLAGS"
67 LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
70 if test "x$no_libFLAC" = "x" ; then
72 ifelse([$1], , :, [$1])
75 if test -f conf.libFLACtest ; then
78 echo "*** Could not run libFLAC test program, checking why..."
79 CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
80 CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS"
81 LIBS="$LIBS $LIBFLAC_LIBS"
82 LD_LIBRARY_PATH="$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
85 #include <FLAC/format.h>
87 [ echo "*** The test program compiled, but did not run. This usually means"
88 echo "*** that the run-time linker is not finding libFLAC or finding the wrong"
89 echo "*** version of libFLAC. If it is not finding libFLAC, you'll need to set your"
90 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
91 echo "*** to the installed location Also, make sure you have run ldconfig if that"
92 echo "*** is required on your system"
94 echo "*** If you have an old version installed, it is best to remove it, although"
95 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
96 [ echo "*** The test program failed to compile or link. See the file config.log for the"
97 echo "*** exact error that occured. This usually means libFLAC was incorrectly installed"
98 echo "*** or that you have moved libFLAC since it was installed. In the latter case, you"
99 echo "*** may want to edit the libFLAC-config script: $LIBFLAC_CONFIG" ])
100 CFLAGS="$ac_save_CFLAGS"
101 CXXFLAGS="$ac_save_CXXFLAGS"
103 LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
108 ifelse([$2], , :, [$2])
110 AC_SUBST(LIBFLAC_CFLAGS)
111 AC_SUBST(LIBFLAC_LIBDIR)
112 AC_SUBST(LIBFLAC_LIBS)
113 rm -f conf.libFLACtest