Index: gcc/gengtype.c
===================================================================
--- gcc/gengtype.c	(revision 165645)
+++ gcc/gengtype.c	(working copy)
@@ -756,20 +756,6 @@ new_structure (const char *name, int isunion, stru
   if (s->u.s.lang_struct)
     s->u.s.lang_struct->u.s.bitmap |= bitmap;
 
-  /* Reset location_s's location to input.h so that we know where to
-     write out its mark routine.  */
-  if (!strcmp (name, "location_s") && !isunion && pos->file == this_file)
-    {
-      size_t n;
-      for (n = 0; n < num_gt_files; n++)
-	if (!strcmp (gt_files[n] + strlen (gt_files[n]) - strlen ("input.h"),
-		     "input.h"))
-	  {
-	    s->u.s.line.file = gt_files[n];
-	    break;
-	  }
-    }
-
   return s;
 }