--- rxvt-unicode/src/rxvtutil.C	2011/01/08 10:06:48	1.12
+++ rxvt-unicode/src/rxvtutil.C	2014/10/24 14:53:20	1.20
@@ -3,11 +3,11 @@
  *----------------------------------------------------------------------*
  *
  * All portions of code are copyright by their respective author/s.
- * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
+ * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
  *
  * 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
+ * the Free Software Foundation; either version 3 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -20,39 +20,20 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *----------------------------------------------------------------------*/
 
-#include <cstdlib>
-#include <cstring>
+// we include emman.c here to avoid relying on a C compiler, or
+// on the c++ compiler not complaining about .c, which is unlikely,
+// but...
+// This must be the first include, because the _GNU_SOURCE and
+// _XOPEN_SOURCE macros, used by emman.c, must be defined before
+// inclusion of any header.
+#include "emman.c"
+
+#include <stdlib.h>
+#include <string.h>
 #include <inttypes.h>
 
 #include "rxvtutil.h"
 
-#if !HAVE_GCC_BUILTINS
-int rxvt_ctz (unsigned int x) CONST
-{
-  int r = 0;
-
-  x &= -x; // this isolates the lowest bit
-
-  if (x & 0xaaaaaaaa) r +=  1;
-  if (x & 0xcccccccc) r +=  2;
-  if (x & 0xf0f0f0f0) r +=  4;
-  if (x & 0xff00ff00) r +=  8;
-  if (x & 0xffff0000) r += 16;
-
-  return r;
-}
-
-int rxvt_popcount (unsigned int x) CONST
-{
-  x -=  (x >> 1) & 0x55555555;
-  x  = ((x >> 2) & 0x33333333) + (x & 0x33333333);
-  x  = ((x >> 4) + x) & 0x0f0f0f0f;
-  x *= 0x01010101;
-
-  return x >> 24;
-}
-#endif
-
 void *
 zero_initialized::operator new (size_t s)
 {
@@ -84,4 +65,3 @@
   return temp_buf;
 }
 
-