Josh Coalson | bfeec74 | 2002-06-28 23:45:53 +0000 | [diff] [blame] | 1 | # Configure paths for libFLAC |
| 2 | # "Inspired" by ogg.m4 |
| 3 | |
| 4 | dnl AM_PATH_LIBFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) |
| 5 | dnl Test for libFLAC, and define LIBFLAC_CFLAGS and LIBFLAC_LIBS |
| 6 | dnl |
Josh Coalson | a941454 | 2004-07-20 01:24:48 +0000 | [diff] [blame^] | 7 | AC_DEFUN([AM_PATH_LIBFLAC], |
Josh Coalson | bfeec74 | 2002-06-28 23:45:53 +0000 | [diff] [blame] | 8 | [dnl |
| 9 | dnl Get the cflags and libraries |
| 10 | dnl |
| 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="$withval", libFLAC_includes="") |
| 14 | AC_ARG_ENABLE(libFLACtest, [ --disable-libFLACtest Do not try to compile and run a test libFLAC program],, enable_libFLACtest=yes) |
| 15 | |
| 16 | if test "x$libFLAC_libraries" != "x" ; then |
| 17 | LIBFLAC_LIBS="-L$libFLAC_libraries" |
| 18 | elif test "x$libFLAC_prefix" != "x" ; then |
| 19 | LIBFLAC_LIBS="-L$libFLAC_prefix/lib" |
| 20 | elif test "x$prefix" != "xNONE" ; then |
Josh Coalson | 42a167f | 2004-05-26 20:20:22 +0000 | [diff] [blame] | 21 | LIBFLAC_LIBS="-L$libdir" |
Josh Coalson | bfeec74 | 2002-06-28 23:45:53 +0000 | [diff] [blame] | 22 | fi |
| 23 | |
Josh Coalson | 69101a5 | 2002-06-29 00:31:43 +0000 | [diff] [blame] | 24 | LIBFLAC_LIBS="$LIBFLAC_LIBS -lFLAC -lm" |
Josh Coalson | bfeec74 | 2002-06-28 23:45:53 +0000 | [diff] [blame] | 25 | |
| 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 "$prefix" != "xNONE"; then |
| 31 | LIBFLAC_CFLAGS="-I$prefix/include" |
| 32 | fi |
| 33 | |
| 34 | AC_MSG_CHECKING(for libFLAC) |
| 35 | no_libFLAC="" |
| 36 | |
| 37 | |
| 38 | if test "x$enable_libFLACtest" = "xyes" ; then |
| 39 | ac_save_CFLAGS="$CFLAGS" |
Josh Coalson | 39eb471 | 2002-07-01 20:37:39 +0000 | [diff] [blame] | 40 | ac_save_CXXFLAGS="$CXXFLAGS" |
Josh Coalson | bfeec74 | 2002-06-28 23:45:53 +0000 | [diff] [blame] | 41 | ac_save_LIBS="$LIBS" |
| 42 | CFLAGS="$CFLAGS $LIBFLAC_CFLAGS" |
Josh Coalson | 39eb471 | 2002-07-01 20:37:39 +0000 | [diff] [blame] | 43 | CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS" |
Josh Coalson | bfeec74 | 2002-06-28 23:45:53 +0000 | [diff] [blame] | 44 | LIBS="$LIBS $LIBFLAC_LIBS" |
| 45 | dnl |
| 46 | dnl Now check if the installed libFLAC is sufficiently new. |
| 47 | dnl |
| 48 | rm -f conf.libFLACtest |
| 49 | AC_TRY_RUN([ |
| 50 | #include <stdio.h> |
| 51 | #include <stdlib.h> |
| 52 | #include <string.h> |
| 53 | #include <FLAC/format.h> |
| 54 | |
| 55 | int main () |
| 56 | { |
| 57 | system("touch conf.libFLACtest"); |
| 58 | return 0; |
| 59 | } |
| 60 | |
| 61 | ],, no_libFLAC=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) |
| 62 | CFLAGS="$ac_save_CFLAGS" |
| 63 | LIBS="$ac_save_LIBS" |
| 64 | fi |
| 65 | |
| 66 | if test "x$no_libFLAC" = "x" ; then |
| 67 | AC_MSG_RESULT(yes) |
| 68 | ifelse([$1], , :, [$1]) |
| 69 | else |
| 70 | AC_MSG_RESULT(no) |
| 71 | if test -f conf.libFLACtest ; then |
| 72 | : |
| 73 | else |
| 74 | echo "*** Could not run libFLAC test program, checking why..." |
| 75 | CFLAGS="$CFLAGS $LIBFLAC_CFLAGS" |
| 76 | LIBS="$LIBS $LIBFLAC_LIBS" |
| 77 | AC_TRY_LINK([ |
| 78 | #include <stdio.h> |
| 79 | #include <FLAC/format.h> |
| 80 | ], [ return 0; ], |
| 81 | [ echo "*** The test program compiled, but did not run. This usually means" |
| 82 | echo "*** that the run-time linker is not finding libFLAC or finding the wrong" |
| 83 | echo "*** version of libFLAC. If it is not finding libFLAC, you'll need to set your" |
| 84 | echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" |
| 85 | echo "*** to the installed location Also, make sure you have run ldconfig if that" |
| 86 | echo "*** is required on your system" |
| 87 | echo "***" |
| 88 | echo "*** If you have an old version installed, it is best to remove it, although" |
| 89 | echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], |
| 90 | [ echo "*** The test program failed to compile or link. See the file config.log for the" |
| 91 | echo "*** exact error that occured. This usually means libFLAC was incorrectly installed" |
| 92 | echo "*** or that you have moved libFLAC since it was installed. In the latter case, you" |
| 93 | echo "*** may want to edit the libFLAC-config script: $LIBFLAC_CONFIG" ]) |
| 94 | CFLAGS="$ac_save_CFLAGS" |
| 95 | LIBS="$ac_save_LIBS" |
| 96 | fi |
| 97 | LIBFLAC_CFLAGS="" |
| 98 | LIBFLAC_LIBS="" |
| 99 | ifelse([$2], , :, [$2]) |
| 100 | fi |
| 101 | AC_SUBST(LIBFLAC_CFLAGS) |
| 102 | AC_SUBST(LIBFLAC_LIBS) |
| 103 | rm -f conf.libFLACtest |
| 104 | ]) |