--- rxvt-unicode/src/rxvtutil.C	2006/01/29 22:27:04	1.4
+++ rxvt-unicode/src/rxvtutil.C	2006/02/20 22:40:35	1.6
@@ -1,3 +1,25 @@
+/*--------------------------------*-C-*---------------------------------*
+ * File:	rxvtutil.C
+ *----------------------------------------------------------------------*
+ *
+ * All portions of code are copyright by their respective author/s.
+ * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *----------------------------------------------------------------------*/
+
 #include <cstdlib>
 #include <cstring>
 #include <inttypes.h>
@@ -24,7 +46,7 @@
 }
 
 #if !HAVE_GCC_BUILTINS
-int ctz (unsigned int x)
+int ctz (unsigned int x) CONST
 {
   int r = 0;
 
@@ -39,7 +61,7 @@
   return r;
 }
 
-int popcount (unsigned int x)
+int popcount (unsigned int x) CONST
 {
   x -=  (x >> 1) & 0x55555555;
   x  = ((x >> 2) & 0x33333333) + (x & 0x33333333);