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-rw-r--r--src/mesa/tnl/t_context.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/tnl/t_context.c b/src/mesa/tnl/t_context.c
index 2c529afd79..330c19d649 100644
--- a/src/mesa/tnl/t_context.c
+++ b/src/mesa/tnl/t_context.c
@@ -121,6 +121,10 @@ _tnl_CreateContext( GLcontext *ctx )
tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables;
+
+ if (getenv("MESA_CODEGEN"))
+ tnl->AllowCodegen = GL_TRUE;
+
return GL_TRUE;
}