From dff477a5e27c39aa61aac8e1555c345211e832b8 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 2 Jul 2008 17:08:47 -0600
Subject: mesa: when linking a shader program, make sure all the shaders
 compiled OK

cherry-picked from master
---
 src/mesa/shader/slang/slang_link.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index dd4990ba02..f08b53e8b7 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -388,6 +388,14 @@ _slang_link(GLcontext *ctx,
 
    _mesa_clear_shader_program_data(ctx, shProg);
 
+   /* check that all programs compiled successfully */
+   for (i = 0; i < shProg->NumShaders; i++) {
+      if (!shProg->Shaders[i]->CompileStatus) {
+         link_error(shProg, "linking with uncompiled shader\n");
+         return;
+      }
+   }
+
    shProg->Uniforms = _mesa_new_uniform_list();
    shProg->Varying = _mesa_new_parameter_list();
 
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