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# Configure paths for libFLAC++
# "Inspired" by ogg.m4
# Caller must first run AM_PATH_LIBFLAC
dnl AM_PATH_LIBFLACPP([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
dnl Test for libFLAC++, and define LIBFLACPP_CFLAGS, LIBFLACPP_LIBS, LIBFLACPP_LIBDIR
dnl
AC_DEFUN([AM_PATH_LIBFLACPP],
[dnl
dnl Get the cflags and libraries
dnl
AC_ARG_WITH(libFLACPP,[ --with-libFLACPP=PFX Prefix where libFLAC++ is installed (optional)], libFLACPP_prefix="$withval", libFLACPP_prefix="")
AC_ARG_WITH(libFLACPP-libraries,[ --with-libFLACPP-libraries=DIR Directory where libFLAC++ library is installed (optional)], libFLACPP_libraries="$withval", libFLACPP_libraries="")
AC_ARG_WITH(libFLACPP-includes,[ --with-libFLACPP-includes=DIR Directory where libFLAC++ header files are installed (optional)], libFLACPP_includes="$withval", libFLACPP_includes="")
AC_ARG_ENABLE(libFLACPPtest, [ --disable-libFLACPPtest Do not try to compile and run a test libFLAC++ program],, enable_libFLACPPtest=yes)
if test "x$libFLACPP_libraries" != "x" ; then
LIBFLACPP_LIBDIR="$libFLACPP_libraries"
elif test "x$libFLACPP_prefix" != "x" ; then
LIBFLACPP_LIBDIR="$libFLACPP_prefix/lib"
elif test "x$prefix" != "xNONE" ; then
LIBFLACPP_LIBDIR="$libdir"
fi
LIBFLACPP_LIBS="-L$LIBFLACPP_LIBDIR -lFLAC++ $LIBFLAC_LIBS"
if test "x$libFLACPP_includes" != "x" ; then
LIBFLACPP_CFLAGS="-I$libFLACPP_includes"
elif test "x$libFLACPP_prefix" != "x" ; then
LIBFLACPP_CFLAGS="-I$libFLACPP_prefix/include"
elif test "$prefix" != "xNONE"; then
LIBFLACPP_CFLAGS=""
fi
LIBFLACPP_CFLAGS="$LIBFLACPP_CFLAGS $LIBFLAC_CFLAGS"
AC_MSG_CHECKING(for libFLAC++)
no_libFLACPP=""
if test "x$enable_libFLACPPtest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_CXXFLAGS="$CXXFLAGS"
ac_save_LIBS="$LIBS"
ac_save_LD_LIBRARY_PATH="$LD_LIBRARY_PATH"
CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS"
CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS"
LIBS="$LIBS $LIBFLACPP_LIBS"
LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
dnl
dnl Now check if the installed libFLAC++ is sufficiently new.
dnl
rm -f conf.libFLAC++test
AC_RUN_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <FLAC++/decoder.h>
]],[[
system("touch conf.libFLAC++test");
return 0;
]])],[],[no_libFLACPP=yes],[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
CXXFLAGS="$ac_save_CXXFLAGS"
LIBS="$ac_save_LIBS"
LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
fi
if test "x$no_libFLACPP" = "x" ; then
AC_MSG_RESULT(yes)
ifelse([$1], , :, [$1])
else
AC_MSG_RESULT(no)
if test -f conf.libFLAC++test ; then
:
else
echo "*** Could not run libFLAC++ test program, checking why..."
CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS"
CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS"
LIBS="$LIBS $LIBFLACPP_LIBS"
LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
AC_TRY_LINK([
#include <stdio.h>
#include <FLAC++/decoder.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 occurred. 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: $LIBFLACPP_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
CXXFLAGS="$ac_save_CXXFLAGS"
LIBS="$ac_save_LIBS"
LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
fi
LIBFLACPP_CFLAGS=""
LIBFLACPP_LIBDIR=""
LIBFLACPP_LIBS=""
ifelse([$2], , :, [$2])
fi
AC_SUBST(LIBFLACPP_CFLAGS)
AC_SUBST(LIBFLACPP_LIBDIR)
AC_SUBST(LIBFLACPP_LIBS)
rm -f conf.libFLAC++test
])
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