glsl: Add extension plumbing and define for ARB_shader_subroutine

Reviewed-by: Tapani Pälli <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Signed-off-by: Chris Forbes <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/glsl/standalone_scaffolding.cpp b/src/glsl/standalone_scaffolding.cpp
index 057ca6ee8a7..6033364afc5 100644
--- a/src/glsl/standalone_scaffolding.cpp
+++ b/src/glsl/standalone_scaffolding.cpp
@@ -133,6 +133,7 @@ void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
    ctx->Extensions.ARB_sample_shading = true;
    ctx->Extensions.ARB_shader_bit_encoding = true;
    ctx->Extensions.ARB_shader_stencil_export = true;
+   ctx->Extensions.ARB_shader_subroutine = true;
    ctx->Extensions.ARB_shader_texture_lod = true;
    ctx->Extensions.ARB_shading_language_420pack = true;
    ctx->Extensions.ARB_shading_language_packing = true;