[doc] Makefile VPATH patch

2007-03-21 Andrew J. Schorr <ajschorr@alumni.princeton.edu>

	* Makefile.am: Patch rule for draft-zebra-00.txt to work
	  in VPATH build environments.
diff --git a/doc/Makefile.am b/doc/Makefile.am
index c998e63..ed3a6d5 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -67,5 +67,5 @@
 	mpls/opaque_lsa.txt mpls/ospfd.conf \
 	$(figures_sources) $(figures_png) $(figures_txt)
 
-draft-zebra-00.txt:
-	groff -T ascii -ms draft-zebra-00.ms > draft-zebra-00.txt
+draft-zebra-00.txt: draft-zebra-00.ms
+	groff -T ascii -ms $< > $@