In gcc/:

       * c-family/c-common.h (constant_string_class): Documented with
       comment identical to the one in c-common.c.

From-SVN: r164447

gcc/ChangeLog

+2010-09-20  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	* c-family/c-common.h (constant_string_class): Documented with
+	comment identical to the one already in c-common.c.
+
 2010-09-20  Jakub Jelinek  <jakub@redhat.com>
 
 	* dwarf2out.c (any_cfis_emitted): New static variable.

gcc/c-family/c-common.h

@@ -561,7 +561,7 @@ extern int flag_hosted;
 
 extern int print_struct_values;
 
-/* ???.  Undocumented.  */
+/* Tells the compiler what is the constant string class for ObjC.  */
 
 extern const char *constant_string_class_name;