File butt-fix.patch of Package butt

Index: butt-0.1.15/configure.ac
===================================================================
--- butt-0.1.15.orig/configure.ac
+++ butt-0.1.15/configure.ac
@@ -61,7 +61,7 @@ AC_CHECK_PROG([FLTKCONFIG],[fltk-config]
 if test "$FLTKCONFIG" = "fltk-config"; then
     AC_CHECK_LIB([fltk], [main], 
 		    [
-		    LIBS="$LIBS `fltk-config --ldflags --use-images`"
+		    LIBS="$LIBS `fltk-config --ldflags --use-images` -lX11"
 		    CXXFLAGS="$CXXFLAGS `fltk-config --cxxflags`"
 		    ],
 		    [AC_MSG_ERROR([**** Could not find libfltk     ****])]