From 07a248a3664e4cd63c98ff3478bdd9b1e45c1398 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 29 Apr 2010 13:35:37 -0700
Subject: [PATCH] mesa: Don't overwrite a driver's shader infolog with generic
 failure message.

---
 src/mesa/shader/slang/slang_link.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index f71fde1d727..47bc9339716 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -1028,7 +1028,10 @@ _slang_link(GLcontext *ctx,
 
    if (!vertNotify || !fragNotify) {
       /* driver rejected one/both of the vertex/fragment programs */
-      link_error(shProg, "Vertex and/or fragment program rejected by driver\n");
+      if (!shProg->InfoLog) {
+	 link_error(shProg,
+		    "Vertex and/or fragment program rejected by driver\n");
+      }
    }
    else {
       shProg->LinkStatus = (shProg->VertexProgram || shProg->FragmentProgram);
-- 
2.30.2