$OpenBSD: patch-pbm_pbmtozinc_c,v 1.1 2003/03/29 04:13:54 brad Exp $
--- pbm/pbmtozinc.c.orig	Fri Jun  9 03:07:21 2000
+++ pbm/pbmtozinc.c	Fri Mar 28 20:22:07 2003
@@ -66,6 +66,7 @@ main( argc, argv )
     bitrow = pbm_allocrow( cols );
 
     /* Compute padding to round cols up to the nearest multiple of 16. */
+    overflow_add(cols, 16);
     padright = ( ( cols + 15 ) / 16 ) * 16 - cols;
 
     printf( "USHORT %s[] = {\n",name);
