Mesa (gallium-mesa-7.4): mesa: improved error msg

[Alan Hourihane]

Module: Mesa
Branch: gallium-mesa-7.4
Commit: 84d9806484c6e7ed4640092de71bc5f2f3c1bcf2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=84d9806484c6e7ed4640092de71bc5f2f3c1bcf2

Author: Brian Paul <brianp at vmware.com>
Date:   Wed Feb 18 13:41:12 2009 -0700

mesa: improved error msg

(cherry picked from master, commit 621c999d823eed077aee9ac0779077ba2f0c5e5a)

---

 src/mesa/shader/shader_api.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index 63d8727..1bfb952 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -1440,7 +1440,8 @@ _mesa_use_program(GLcontext *ctx, GLuint program)
          return;
       }
       if (!shProg->LinkStatus) {
-         _mesa_error(ctx, GL_INVALID_OPERATION, "glUseProgram");
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glUseProgram(program %u not linked)", program);
          return;
       }
    }