[cff] Fix compiler warning (#55105).

* src/cff/cffparse.c (cff_parser_run): Guard label only used if
CFF_CONFIG_OPTION_OLD_ENGINE is active.

ChangeLog

@@ -1,6 +1,13 @@
 2018-11-27  Ben Wagner  <bungeman@google.com>
 
-	[truetype Fix numeric overflow (#55103).
+	[cff] Fix compiler warning (#55105).
+
+	* src/cff/cffparse.c (cff_parser_run): Guard label only used if
+	CFF_CONFIG_OPTION_OLD_ENGINE is active.
+
+2018-11-27  Ben Wagner  <bungeman@google.com>
+
+	[truetype] Fix numeric overflow (#55103).
 
 	* src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.
 

src/cff/cffparse.c

@@ -1534,9 +1534,11 @@
 #endif
     return error;
 
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
   Out_Of_Memory_Error:
     error = FT_THROW( Out_Of_Memory );
     goto Exit;
+#endif
 
   Stack_Overflow:
     error = FT_THROW( Invalid_Argument );