- use absolute path for top_builddir and top_srcdir.
  Fixes make trying to include the very same file in an endless loop.
diff --git a/scripts/config/Makefile b/scripts/config/Makefile
index 8983ee5..716e130 100644
--- a/scripts/config/Makefile
+++ b/scripts/config/Makefile
@@ -2,8 +2,12 @@
 #
 # Copyright (C) 2002 Erik Andersen <andersen@codepoet.org>
 
+ifndef top_srcdir
 top_srcdir=../..
+endif
+ifndef top_builddir
 top_builddir=../..
+endif
 srcdir=$(top_srcdir)/scripts/config
 include $(top_srcdir)/Rules.mak