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https://git.code.sf.net/p/quake/quakeforge
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102 lines
3.8 KiB
Text
102 lines
3.8 KiB
Text
# Configure paths for libFLAC
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# "Inspired" by ogg.m4
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dnl AM_PATH_LIBFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
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dnl Test for libFLAC, and define LIBFLAC_CFLAGS and LIBFLAC_LIBS
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dnl
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AC_DEFUN([AM_PATH_LIBFLAC],
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[dnl
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dnl Get the cflags and libraries
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dnl
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AC_ARG_WITH(libFLAC,AS_HELP_STRING([--with-libFLAC=PFX], [prefix where libFLAC is installed (optional)]), libFLAC_prefix="$withval", libFLAC_prefix="")
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AC_ARG_WITH(libFLAC-libraries,AS_HELP_STRING([--with-libFLAC-libraries=DIR], [directory where libFLAC library is installed (optional)]), libFLAC_libraries="$withval", libFLAC_libraries="")
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AC_ARG_WITH(libFLAC-includes,AS_HELP_STRING([--with-libFLAC-includes=DIR], [directory where libFLAC header files are installed (optional)]), libFLAC_includes="$withval", libFLAC_includes="")
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AC_ARG_ENABLE(libFLACtest, AS_HELP_STRING([--disable-libFLACtest], [do not try to compile and run a test libFLAC program]),, enable_libFLACtest=yes)
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if test "x$libFLAC_libraries" != "x" ; then
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LIBFLAC_LIBS="-L$libFLAC_libraries"
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elif test "x$libFLAC_prefix" != "x" ; then
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LIBFLAC_LIBS="-L$libFLAC_prefix/lib"
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elif test "x$prefix" != "xNONE" ; then
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LIBFLAC_LIBS="-L$libdir"
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fi
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LIBFLAC_LIBS="$LIBFLAC_LIBS -lFLAC -lm"
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if test "x$libFLAC_includes" != "x" ; then
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LIBFLAC_CFLAGS="-I$libFLAC_includes"
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elif test "x$libFLAC_prefix" != "x" ; then
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LIBFLAC_CFLAGS="-I$libFLAC_prefix/include"
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elif test "$prefix" != "xNONE"; then
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LIBFLAC_CFLAGS="-I$prefix/include"
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fi
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AC_MSG_CHECKING(for libFLAC)
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no_libFLAC=""
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if test "x$enable_libFLACtest" = "xyes" ; then
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ac_save_CFLAGS="$CFLAGS"
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ac_save_CXXFLAGS="$CXXFLAGS"
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ac_save_LIBS="$LIBS"
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CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
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CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS"
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LIBS="$LIBS $LIBFLAC_LIBS"
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dnl
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dnl Now check if the installed libFLAC is sufficiently new.
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dnl
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rm -f conf.libFLACtest
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <FLAC/format.h>
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int main ()
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{
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system("touch conf.libFLACtest");
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return 0;
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}
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]])],[],[no_libFLAC=yes],[echo $ac_n "cross compiling; assumed OK... $ac_c"])
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CFLAGS="$ac_save_CFLAGS"
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LIBS="$ac_save_LIBS"
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fi
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if test "x$no_libFLAC" = "x" ; then
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AC_MSG_RESULT(yes)
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ifelse([$1], , :, [$1])
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else
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AC_MSG_RESULT(no)
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if test -f conf.libFLACtest ; then
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:
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else
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echo "*** Could not run libFLAC test program, checking why..."
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CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
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LIBS="$LIBS $LIBFLAC_LIBS"
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <stdio.h>
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#include <FLAC/format.h>
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]], [[ return 0; ]])],[ echo "*** The test program compiled, but did not run. This usually means"
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echo "*** that the run-time linker is not finding libFLAC or finding the wrong"
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echo "*** version of libFLAC. If it is not finding libFLAC, you'll need to set your"
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echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
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echo "*** to the installed location Also, make sure you have run ldconfig if that"
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echo "*** is required on your system"
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echo "***"
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echo "*** If you have an old version installed, it is best to remove it, although"
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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"
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echo "*** exact error that occured. This usually means libFLAC was incorrectly installed"
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echo "*** or that you have moved libFLAC since it was installed. In the latter case, you"
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echo "*** may want to edit the libFLAC-config script: $LIBFLAC_CONFIG" ])
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CFLAGS="$ac_save_CFLAGS"
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LIBS="$ac_save_LIBS"
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fi
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LIBFLAC_CFLAGS=""
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LIBFLAC_LIBS=""
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ifelse([$2], , :, [$2])
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fi
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AC_SUBST(LIBFLAC_CFLAGS)
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AC_SUBST(LIBFLAC_LIBS)
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rm -f conf.libFLACtest
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])
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