LIB_XINERAMA=

AC_ARG_WITH([xinerama],
  AC_HELP_STRING([--without-xinerama], [Disable xinerama extension support (default: check)]) )

if test "x$with_xinerama" != "xno"; then
  xinerama_save_ldflags="$LDFLAGS"
  LDFLAGS="$X_LDFLAGS"

  KDE_CHECK_HEADER(X11/extensions/Xinerama.h,
    [
    AC_CHECK_LIB(Xinerama,XineramaQueryExtension,
	[
        AC_DEFINE(HAVE_XINERAMA, 1, [Define if you have the Xinerama extension])
	LIB_XINERAMA="-lXinerama -lXext"
        ],
        [],
        [ $X_PRE_LIBS -lXext -lX11 $X_EXTRA_LIBS ])
     ], [],
     [
     #include <X11/Xlib.h>
     ] )

  AC_SUBST(LIB_XINERAMA)
  LDFLAGS="$xinerama_save_ldflags"
fi