diff -r 000000000000 -r 6f7a81934006 lib/fdbuf/fdobuf_signed.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/fdbuf/fdobuf_signed.cc	Wed Jan 16 22:39:43 2008 +0100
@@ -0,0 +1,38 @@
+// Copyright (C) 1999,2000 Bruce Guenter <bruceg@em.ca>
+//
+// 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+#include "fdbuf.h"
+#include <limits.h>
+
+#define MAXSTRLEN ((sizeof(signed long)*CHAR_BIT)/3)
+
+fdobuf& fdobuf::operator<<(signed long i)
+{
+  if(i == 0)
+    return operator<<('0');
+  if(i < 0) {
+    operator<<('-');
+    i = -i;
+  }
+  char buf[MAXSTRLEN+1];
+  char* ptr = buf+MAXSTRLEN;
+  *ptr-- = 0;
+  while(i) {
+    *ptr-- = i % 10 + '0';
+    i /= 10;
+  }
+  return operator<<(ptr+1);
+}