[Mesa-dev] [PATCH 0/5] Remainder of GLES3.1 foundation work

[Ian Romanick]

The first two patches are just re-re-sends of the same patches.

Based on feedback from Emil and others, I changed the later patches to
use a new environment variable, MESA_GLES_VERSION_OVERRIDE, to override
GLES versions.  I considered naming this MESA_GLES2_VERSION_OVERRIDE so
that we could later add support for ES1 overrides.  I decided against
this because

1. I don't think anyone cares two hoots about ES1.

2. Everyone will typo MESA_GLES_VERSION_OVERRIDE instead of
MESA_GLES2_VERSION_OVERRIDE anyway.