* gdb.gdb/selftest.exp (do_steps_and_nexts): Don't reference

uninitialized value of "description".

gdb/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2014-04-15  Doug Evans  <dje@google.com>
+
+	* gdb.gdb/selftest.exp (do_steps_and_nexts): Don't reference
+	uninitialized value of "description".
+
 2014-04-15  Keith Seitz  <keiths@redhat.com>
 
 	* gdb.mi/mi-simplerun.exp (test_breakpoints_creation_and_listing):

gdb/testsuite/gdb.gdb/selftest.exp

@@ -222,7 +222,13 @@ proc do_steps_and_nexts {} {
 		set command "next"
 	    }
 	    -re ".*$gdb_prompt $" {
-		fail "unknown source line after $description"
+		# If $description hasn't been set yet, it's likely the file
+		# has been edited but gdb hasn't been recompiled.
+		if [info exists description] {
+		    fail "unknown source line (after $description)"
+		} else {
+		    fail "unknown source line"
+		}
 		return
 	    }
 	    default {