[Piglit] [PATCH 02/15] Stop using GLEW extension macros

[Kenneth Graunke]

On 03/03/2012 10:01 AM, Paul Berry wrote:
> Several tests were checking for the presence of GL extensions using
> GLEW macros.  This patch changes the tests to use
> piglit_is_extension_supported(), which provides the same functionality
> in a way that is not dependent on GLEW.
>
> v2: Follow piglit convention of including "GL_" in the string passed
> to piglit_is_extension_supported().

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>