1 files changed, 15 insertions, 0 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index b1f800f4c21..3bddf2570ec 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -597,6 +597,21 @@ _mesa_init_constants(GLcontext *ctx)
    ctx->Const.MaxVarying = MAX_VARYING;
 #endif
 
+   /* Shading language version */
+   if (ctx->API == API_OPENGL) {
+#if FEATURE_ARB_shading_language_120
+      ctx->Const.GLSLVersion = 120;
+#else
+      ctx->Const.GLSLVersion = 110;
+#endif
+   }
+   else if (ctx->API == API_OPENGLES2) {
+      ctx->Const.GLSLVersion = 100;
+   }
+   else if (ctx->API == API_OPENGLES) {
+      ctx->Const.GLSLVersion = 0; /* GLSL not supported */
+   }
+
    /* GL_ARB_framebuffer_object */
    ctx->Const.MaxSamples = 0;