From 4ca075ac4f047141d5e5ef865991650e0ac488e4 Mon Sep 17 00:00:00 2001
From: Benjamin Franzke <benjaminfranzke@googlemail.com>
Date: Wed, 2 Mar 2011 21:23:04 +0100
Subject: egl_dri2 x11: Workaround device_name xcb-dri2 bug

This commit is basically a copy-over of the fix
Chia-I Wu's commited to wayland:
   http://cgit.freedesktop.org/wayland/wayland-demos/commit/?id=1b6c0ed95
   "Workaround an xcb-dri2 bug.
    xcb_dri2_connect_device_name generated by xcb-proto 1.6 is broken.
    It only works when the length of the driver name is a multiple of 4."
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 9fa5eeea18..d33ca301f9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1162,6 +1162,9 @@ if test "x$enable_egl" = xyes; then
                 if test "$have_libudev" = yes; then
                     DEFINES="$DEFINES -DHAVE_LIBUDEV"
                 fi
+                # workaround a bug in xcb-dri2 generated by xcb-proto 1.6
+                AC_CHECK_LIB(xcb-dri2, xcb_dri2_connect_alignment_pad, [],
+                          [DEFINES="$DEFINES -DXCB_DRI2_CONNECT_DEVICE_NAME_BROKEN"])
             fi
 	fi
 
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