$NetBSD: patch-synacore,v 1.1 2007/05/23 11:44:36 rillig Exp $

gcc4 complains about possibly undefined behavior in line 161.

--- syna_core.c.orig	2001-04-26 22:46:13.000000000 +0200
+++ syna_core.c	2007-05-23 13:27:21.000000000 +0200
@@ -158,14 +158,13 @@ static void fadeFade()
 /*    //Bytewize version was: *(ptr++) -= *ptr+(*ptr>>1)>>4;*/
 		if (*ptr)
 /*      //if (*ptr & 0xf0f0f0f0ul)*/
-			*(ptr++) -=
+			*ptr -=
 				((*ptr & 0xf0f0f0f0ul) >> 4) +
 				((*ptr & 0xe0e0e0e0ul) >> 5);
 /*      //else {
       //  *(ptr++) = (*ptr * 14 >> 4) & 0x0f0f0f0ful;
       //}*/
-		else
-			ptr++;
+		ptr++;
 	}
 	while (--i > 0);
 }