diff options
| -rw-r--r-- | m4/libdv.m4 | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/m4/libdv.m4 b/m4/libdv.m4 new file mode 100644 index 00000000..d0eee8a3 --- /dev/null +++ b/m4/libdv.m4 @@ -0,0 +1,108 @@ +# Configure paths for libdv +# copied from vorbis.m4 by Thomas +# checks for libdv 0.9.5 since that added an extra argument to _init +# Shamelessly stolen from Owen Taylor and Manish Singh + +dnl AM_PATH_LIBDV([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) +dnl Test for liblibdv, and define LIBDV_CFLAGS and LIBDV_LIBS +dnl +AC_DEFUN(AM_PATH_LIBDV, +[dnl +dnl Get the cflags and libraries + +AC_ARG_WITH(libdv,[ --with-libdv=PFX Prefix where libdv is installed (optional)], libdv_prefix="$withval", libdv_prefix="") +AC_ARG_WITH(libdv-libraries,[ --with-libdv-libraries=DIR Directory where libdv library is installed (optional)], libdv_libraries="$withval", libdv_libraries="") +AC_ARG_WITH(libdv-includes,[ --with-libdv-includes=DIR Directory where libdv header files are installed (optional)], libdv_includes="$withval", libdv_includes="") +AC_ARG_ENABLE(libdvtest, [ --disable-libdvtest Do not try to compile and run a test libdv program],, enable_libdvtest=yes) + + if test "x$libdv_libraries" != "x" ; then + LIBDV_LIBS="-L$libdv_libraries" + elif test "x$libdv_prefix" != "x" ; then + LIBDV_LIBS="-L$libdv_prefix/lib" + elif test "x$prefix" != "xNONE"; then + LIBDV_LIBS="-L$prefix/lib" + fi + + LIBDV_LIBS="$LIBDV_LIBS -ldv" + + if test "x$libdv_includes" != "x" ; then + LIBDV_CFLAGS="-I$libdv_includes" + elif test "x$libdv_prefix" != "x" ; then + LIBDV_CFLAGS="-I$libdv_prefix/include" + elif test "x$prefix" != "xNONE"; then + LIBDV_CFLAGS="-I$prefix/include" + fi + + + AC_MSG_CHECKING(for libdv) + no_libdv="" + + + if test "x$enable_libdvtest" = "xyes" ; then + ac_save_CFLAGS="$CFLAGS" + ac_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $LIBDV_CFLAGS" + LIBS="$LIBS $LIBDV_LIBS" +dnl +dnl Now check if the installed libdv is sufficiently new. +dnl + dnl rm -f conf.libdvtest + AC_TRY_RUN([ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <libdv/dv.h> + +int main () +{ + dv_decoder_new (0, 0, 0); + return 0; +} + +],, no_libdv=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + fi + + if test "x$no_libdv" = "x" ; then + AC_MSG_RESULT(yes) + ifelse([$1], , :, [$1]) + else + AC_MSG_RESULT(no) + if test -f conf.libdvtest ; then + : + else + echo "*** Could not run libdv test program, checking why..." + CFLAGS="$CFLAGS $LIBDV_CFLAGS" + LIBS="$LIBS $LIBDV_LIBS" + AC_TRY_LINK([ +#include <stdio.h> +#include <libdv/dv.h> +], [ return 0; ], + [ echo "*** The test program compiled, but did not run. This usually means" + echo "*** that the run-time linker is not finding libdv or finding the wrong" + echo "*** version of libdv. If it is not finding libdv, you'll need to set your" + echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" + echo "*** to the installed location Also, make sure you have run ldconfig if that" + echo "*** is required on your system" + echo "***" + echo "*** If you have an old version installed, it is best to remove it, although" + echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], + [ echo "*** The test program failed to compile or link. See the file config.log for the" + echo "*** exact error that occured. This usually means libdv was incorrectly installed" + echo "*** or that you have moved libdv since it was installed." ]) + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + fi + LIBDV_CFLAGS="" + LIBDV_LIBS="" + LIBDVFILE_LIBS="" + LIBDVENC_LIBS="" + ifelse([$2], , :, [$2]) + fi + AC_SUBST(LIBDV_CFLAGS) + AC_SUBST(LIBDV_LIBS) + AC_SUBST(LIBDVFILE_LIBS) + AC_SUBST(LIBDVENC_LIBS) + dnl rm -f conf.libdvtest +]) |