dixstruct.h: fix segfaults - char is unsigned for ARM and PowerPC architectures

see ARM related bug reports [1-3]

[1] https://github.com/archlinuxarm/PKGBUILDs/issues/446I
[2] http://www.raspberrypi.org/phpBB3/viewtopic.php?t=38568&p=321673
[3] http://lists.linuxtogo.org/pipermail/openembedded-core/2013-April/037805.html

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/include/dixstruct.h b/include/dixstruct.h
index 6784819..aef822c 100644 (file)
--- a/include/dixstruct.h
+++ b/include/dixstruct.h
@@ -96,7 +96,7 @@ typedef struct _Client {
     unsigned int clientGone:1;
     unsigned int closeDownMode:2;
     unsigned int clientState:2;
-    char smart_priority;
+    signed char smart_priority;
     short noClientException;      /* this client died or needs to be killed */
     int priority;
     ReplySwapPtr pSwapReplyFunc;