1# Configure paths for libFLAC++ 2# "Inspired" by ogg.m4 3# Caller must first run AM_PATH_LIBFLAC 4 5dnl AM_PATH_LIBFLACPP([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) 6dnl Test for libFLAC++, and define LIBFLACPP_CFLAGS, LIBFLACPP_LIBS, LIBFLACPP_LIBDIR 7dnl 8AC_DEFUN([AM_PATH_LIBFLACPP], 9[dnl 10dnl Get the cflags and libraries 11dnl 12AC_ARG_WITH(libFLACPP,[ --with-libFLACPP=PFX Prefix where libFLAC++ is installed (optional)], libFLACPP_prefix="$withval", libFLACPP_prefix="") 13AC_ARG_WITH(libFLACPP-libraries,[ --with-libFLACPP-libraries=DIR Directory where libFLAC++ library is installed (optional)], libFLACPP_libraries="$withval", libFLACPP_libraries="") 14AC_ARG_WITH(libFLACPP-includes,[ --with-libFLACPP-includes=DIR Directory where libFLAC++ header files are installed (optional)], libFLACPP_includes="$withval", libFLACPP_includes="") 15AC_ARG_ENABLE(libFLACPPtest, [ --disable-libFLACPPtest Do not try to compile and run a test libFLAC++ program],, enable_libFLACPPtest=yes) 16 17 if test "x$libFLACPP_libraries" != "x" ; then 18 LIBFLACPP_LIBDIR="$libFLACPP_libraries" 19 elif test "x$libFLACPP_prefix" != "x" ; then 20 LIBFLACPP_LIBDIR="$libFLACPP_prefix/lib" 21 elif test "x$prefix" != "xNONE" ; then 22 LIBFLACPP_LIBDIR="$libdir" 23 fi 24 25 LIBFLACPP_LIBS="-L$LIBFLACPP_LIBDIR -lFLAC++ $LIBFLAC_LIBS" 26 27 if test "x$libFLACPP_includes" != "x" ; then 28 LIBFLACPP_CFLAGS="-I$libFLACPP_includes" 29 elif test "x$libFLACPP_prefix" != "x" ; then 30 LIBFLACPP_CFLAGS="-I$libFLACPP_prefix/include" 31 elif test "$prefix" != "xNONE"; then 32 LIBFLACPP_CFLAGS="" 33 fi 34 35 LIBFLACPP_CFLAGS="$LIBFLACPP_CFLAGS $LIBFLAC_CFLAGS" 36 37 AC_MSG_CHECKING(for libFLAC++) 38 no_libFLACPP="" 39 40 41 if test "x$enable_libFLACPPtest" = "xyes" ; then 42 ac_save_CFLAGS="$CFLAGS" 43 ac_save_CXXFLAGS="$CXXFLAGS" 44 ac_save_LIBS="$LIBS" 45 ac_save_LD_LIBRARY_PATH="$LD_LIBRARY_PATH" 46 CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS" 47 CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS" 48 LIBS="$LIBS $LIBFLACPP_LIBS" 49 LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH" 50dnl 51dnl Now check if the installed libFLAC++ is sufficiently new. 52dnl 53 rm -f conf.libFLAC++test 54 AC_TRY_RUN([ 55#include <stdio.h> 56#include <stdlib.h> 57#include <string.h> 58#include <FLAC++/decoder.h> 59 60int main () 61{ 62 system("touch conf.libFLAC++test"); 63 return 0; 64} 65 66],, no_libFLACPP=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 67 CFLAGS="$ac_save_CFLAGS" 68 CXXFLAGS="$ac_save_CXXFLAGS" 69 LIBS="$ac_save_LIBS" 70 LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH" 71 fi 72 73 if test "x$no_libFLACPP" = "x" ; then 74 AC_MSG_RESULT(yes) 75 ifelse([$1], , :, [$1]) 76 else 77 AC_MSG_RESULT(no) 78 if test -f conf.libFLAC++test ; then 79 : 80 else 81 echo "*** Could not run libFLAC++ test program, checking why..." 82 CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS" 83 CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS" 84 LIBS="$LIBS $LIBFLACPP_LIBS" 85 LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH" 86 AC_TRY_LINK([ 87#include <stdio.h> 88#include <FLAC++/decoder.h> 89], [ return 0; ], 90 [ echo "*** The test program compiled, but did not run. This usually means" 91 echo "*** that the run-time linker is not finding libFLAC++ or finding the wrong" 92 echo "*** version of libFLAC++. If it is not finding libFLAC++, you'll need to set your" 93 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" 94 echo "*** to the installed location Also, make sure you have run ldconfig if that" 95 echo "*** is required on your system" 96 echo "***" 97 echo "*** If you have an old version installed, it is best to remove it, although" 98 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], 99 [ echo "*** The test program failed to compile or link. See the file config.log for the" 100 echo "*** exact error that occurred. This usually means libFLAC++ was incorrectly installed" 101 echo "*** or that you have moved libFLAC++ since it was installed. In the latter case, you" 102 echo "*** may want to edit the libFLAC++-config script: $LIBFLACPP_CONFIG" ]) 103 CFLAGS="$ac_save_CFLAGS" 104 CXXFLAGS="$ac_save_CXXFLAGS" 105 LIBS="$ac_save_LIBS" 106 LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH" 107 fi 108 LIBFLACPP_CFLAGS="" 109 LIBFLACPP_LIBDIR="" 110 LIBFLACPP_LIBS="" 111 ifelse([$2], , :, [$2]) 112 fi 113 AC_SUBST(LIBFLACPP_CFLAGS) 114 AC_SUBST(LIBFLACPP_LIBDIR) 115 AC_SUBST(LIBFLACPP_LIBS) 116 rm -f conf.libFLAC++test 117]) 118