--- source/include/byteorder.h.orig		 2003-07-31 13:36:52.000000000 +1000
+++ source/include/byteorder.h		 2003-07-31 13:38:14.000000000 +1000
@@ -105,7 +105,7 @@
 #define CAREFUL_ALIGNMENT 1
 #endif
 
-#define CVAL(buf,pos) (((const unsigned char *)(buf))[pos])
+#define CVAL(buf,pos) ((unsigned)(((const unsigned char *)(buf))[pos]))
 #define CVAL_NC(buf,pos) (((unsigned char *)(buf))[pos]) /* Non-const version of CVAL */
 #define PVAL(buf,pos) (CVAL(buf,pos))
 #define SCVAL(buf,pos,val) (CVAL_NC(buf,pos) = (val))