# 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 -lm" 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 ])