--- bitmaps/right.xbm.orig	1994-12-17 21:29:49 UTC
+++ bitmaps/right.xbm
@@ -1,7 +1,7 @@
 /* Copyright (c) 1993 by Sanjay Ghemawat */
 #define right_width 16
 #define right_height 16
-static char right_bits[] = {
+static unsigned char right_bits[] = {
    0x00, 0x00, 0x80, 0x01, 0x80, 0x02, 0x80, 0x04, 0x80, 0x08, 0xfe, 0x10,
    0x02, 0x20, 0x02, 0x40, 0x02, 0x40, 0x02, 0x20, 0xfe, 0x10, 0x80, 0x08,
    0x80, 0x04, 0x80, 0x02, 0x80, 0x01, 0x00, 0x00};