glsl: Implement the GL_ARB_conservative_depth extension.
It's the same as GL_AMD_conservative_depth. The specs have slight
differences in wording, but don't differ in content or behavior.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index b54ef41..ba81c59 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -395,7 +395,7 @@
/* Validate layout qualifiers for gl_FragDepth.
*
- * From the AMD_conservative_depth spec:
+ * From the AMD/ARB_conservative_depth specs:
* "If gl_FragDepth is redeclared in any fragment shader in
* a program, it must be redeclared in all fragment shaders in that
* program that have static assignments to gl_FragDepth. All