File u_GLX-SWrast-Make-GLX-with-SWrast-enabled-work-on-olde.patch of Package Mesa

From bb5ac44693cc6a50de068c729a089b7bdd6db4cd Mon Sep 17 00:00:00 2001
From: Egbert Eich <eich@freedesktop.org>
Date: Thu, 9 Jun 2011 12:42:59 +0200
Subject: [PATCH] [GLX/SWrast] Make GLX with SWrast enabled work on older Xservers.
Patch-mainline: To be upstreamed

Older Xservers don't offer a set of configs/visuals that is compatible
with DRI. If no visuals or configs are found let driswCreateScreen()
fail so that the next fallback path is take.

Signed-off-by: Egbert Eich <eich@freedesktop.org>
---
 src/glx/drisw_glx.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c
index 2eaa3c5..7bf29af 100644
--- a/src/glx/drisw_glx.c
+++ b/src/glx/drisw_glx.c
@@ -490,6 +490,9 @@ driswCreateScreen(int screen, struct glx_display *priv)
    psc->base.visuals =
       driConvertConfigs(psc->core, psc->base.visuals, driver_configs);
 
+   if (psc->base.configs == NULL || psc->base.visuals == NULL)
+       goto handle_error;
+
    psc->driver_configs = driver_configs;
 
    psc->base.vtable = &drisw_screen_vtable;
-- 
1.7.3.4