From: Chris Forbes <chrisf@ijw.co.nz>
Date: Sat, 29 Nov 2014 20:54:59 +0000 (+1300)
Subject: glcpp: Disallow undefining GL_* builtin macros.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b49a069bd3c96c8a144bb671863d0757fb421a07;p=mesa.git

glcpp: Disallow undefining GL_* builtin macros.

Fixes the piglit test: spec/glsl-es-3.00/compiler/undef-GL_ES.vert

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
---

diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y
index f1119eb805a..287792439b5 100644
--- a/src/glsl/glcpp/glcpp-parse.y
+++ b/src/glsl/glcpp/glcpp-parse.y
@@ -290,7 +290,8 @@ control_line_success:
 		macro_t *macro;
 		if (strcmp("__LINE__", $4) == 0
 		    || strcmp("__FILE__", $4) == 0
-		    || strcmp("__VERSION__", $4) == 0)
+		    || strcmp("__VERSION__", $4) == 0
+		    || strncmp("GL_", $4, 3) == 0)
 			glcpp_error(& @1, parser, "Built-in (pre-defined)"
 				    " macro names can not be undefined.");