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