diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b4e88e26c902..abcfdea4cfb1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2013-10-17  Sriraman Tallam  <tmsriram@google.com>
+
+	* opth-gen.awk: Define target_flags_explicit.
+
 2013-10-17  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	* config/rs6000/rs6000.c (enum rs6000_reload_reg_type): Add new
diff --git a/gcc/opth-gen.awk b/gcc/opth-gen.awk
index 01c5ab65f410..46bd570f6f72 100644
--- a/gcc/opth-gen.awk
+++ b/gcc/opth-gen.awk
@@ -114,6 +114,7 @@ print "};"
 print "extern struct gcc_options global_options;"
 print "extern const struct gcc_options global_options_init;"
 print "extern struct gcc_options global_options_set;"
+print "#define target_flags_explicit global_options_set.x_target_flags"
 print "#endif"
 print "#endif"
 print ""