$OpenBSD: patch-pbm_pbmtoicon_c,v 1.1 2003/03/29 04:13:54 brad Exp $
--- pbm/pbmtoicon.c.orig	Mon Oct  4 05:10:50 1993
+++ pbm/pbmtoicon.c	Fri Mar 28 20:22:06 2003
@@ -42,6 +42,7 @@ main( argc, argv )
     bitrow = pbm_allocrow( cols );
     
     /* Round cols up to the nearest multiple of 16. */
+    overflow_add(cols, 15);
     pad = ( ( cols + 15 ) / 16 ) * 16 - cols;
     padleft = pad / 2;
     padright = pad - padleft;
