[Piglit] [PATCH] Add missing extension check in arb_gpu_shader5/invocation-id.

[Kenneth Graunke]

I was surprised to see this failing on my system.  It shouldn't run.
---
 tests/spec/arb_gpu_shader5/execution/invocation-id.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/spec/arb_gpu_shader5/execution/invocation-id.c b/tests/spec/arb_gpu_shader5/execution/invocation-id.c
index a78332e..b723516 100644
--- a/tests/spec/arb_gpu_shader5/execution/invocation-id.c
+++ b/tests/spec/arb_gpu_shader5/execution/invocation-id.c
@@ -104,6 +104,8 @@ piglit_init(int argc, char **argv)
 {
 	bool pass = true;
 
+	piglit_require_extension("GL_ARB_gpu_shader5");
+
 	pass = test_gs_invocations(gs_source1, 1) && pass;
 	pass = test_gs_invocations(gs_source4, 4) && pass;
 
-- 
1.8.5.2