Index: gdb/c-exp.y
===================================================================
RCS file: /cvs/src/src/gdb/c-exp.y,v
retrieving revision 1.35
diff -u -p -r1.35 c-exp.y
--- gdb/c-exp.y	2 Aug 2006 03:13:20 -0000	1.35
+++ gdb/c-exp.y	25 Aug 2006 01:42:21 -0000
@@ -719,8 +719,13 @@ variable:	name_not_typename
 			      else if (!have_full_symbols () && !have_partial_symbols ())
 				error ("No symbol table is loaded.  Use the \"file\" command.");
 			      else
-				error ("No symbol \"%s\" in current context.",
-				       copy_name ($1.stoken));
+			        {
+				  /* https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=185337  */
+				  if (strcmp (arg, "errno") == 0)
+				    warning ("You should use symbol \"(*__errno_location ())\" or"
+					     " compile the program with `gcc -ggdb3' or `gcc -pthread'.");
+				  error ("No symbol \"%s\" in current context.", arg);
+			        }
 			    }
 			}
 	;