diff -r e64f2cb57d05 -r e3182741ade2 common/autoconf/Makefile.in
--- a/common/autoconf/Makefile.in	Fri Oct 26 14:29:57 2012 -0700
+++ b/common/autoconf/Makefile.in	Mon Oct 29 14:06:57 2012 -0700
@@ -21,6 +21,7 @@
 # questions.
 #
 
-# Generated Makefile @DATE_WHEN_CONFIGURED@
+# This Makefile was generated by configure @DATE_WHEN_CONFIGURED@
+# GENERATED FILE, DO NOT EDIT
 SPEC:=@OUTPUT_ROOT@/spec.gmk
 include @SRC_ROOT@/common/makefiles/Makefile