1
dnl macros for X-related detections
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dnl AC_SUBST's HAVE_X, X_CFLAGS, X_LIBS
3
AC_DEFUN([GST_CHECK_X],
6
ac_cflags_save="$CFLAGS"
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ac_cppflags_save="$CPPFLAGS"
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CFLAGS="$CFLAGS $X_CFLAGS"
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CPPFLAGS="$CPPFLAGS $X_CFLAGS"
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dnl now try to find the HEADER
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AC_CHECK_HEADER(X11/Xlib.h, HAVE_X="yes", HAVE_X="no")
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if test "x$HAVE_X" = "xno"
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AC_MSG_NOTICE([cannot find X11 development files])
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dnl this is much more than we want
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X_LIBS="$X_LIBS $X_PRE_LIBS $X_EXTRA_LIBS"
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dnl AC_PATH_XTRA only defines the path needed to find the X libs,
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dnl it does not add the libs; therefore we add them here
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X_LIBS="$X_LIBS -lX11"
30
dnl Look for the PIC library first, Debian requires it.
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dnl Check debian-devel archives for gory details.
33
dnl At the moment XFree86 doesn't distribute shared libXv due
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dnl to unstable API. On many platforms you CAN NOT link a shared
35
dnl lib to a static non-PIC lib. This is what the xvideo GStreamer
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dnl plug-in wants to do. So Debian distributes a PIC compiled
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dnl version of the static lib for plug-ins to link to when it is
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dnl inappropriate to link the main application to libXv directly.
39
dnl FIXME: add check if this platform can support linking to a
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dnl non-PIC libXv, if not then don not use Xv.
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dnl FIXME: perhaps warn user if they have a shared libXv since
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dnl this is an error until XFree86 starts shipping one
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AC_DEFUN([GST_CHECK_XV],
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if test x$HAVE_X = xyes; then
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AC_CHECK_LIB(Xv_pic, XvQueryExtension,
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HAVE_XVIDEO="yes", HAVE_XVIDEO="no",
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if test x$HAVE_XVIDEO = xyes; then
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XVIDEO_LIBS="-lXv_pic -lXext"
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dnl try again using something else if we didn't find it first
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if test x$HAVE_XVIDEO = xno; then
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AC_CHECK_LIB(Xv, XvQueryExtension,
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HAVE_XVIDEO="yes", HAVE_XVIDEO="no",
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if test x$HAVE_XVIDEO = xyes; then
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XVIDEO_LIBS="-lXv -lXext"
added
removed
common/m4/gst-x11.m4
