Fix GLSL compilation errors on some drivers.
authorSteinar H. Gunderson <sgunderson@bigfoot.com>
Tue, 6 Oct 2015 18:08:05 +0000 (20:08 +0200)
committerSteinar H. Gunderson <sgunderson@bigfoot.com>
Tue, 6 Oct 2015 18:08:05 +0000 (20:08 +0200)
commit5b08f06cd4547102186932ce789788e07ea8fd8c
treed4e9db35a82ccf3c4cd45017476c1e0f3a12922f
parent67a7863f5f060d4396b27a39ea8b495498197e45
Fix GLSL compilation errors on some drivers.

Evidently #if FOO is illegal in GLSL if FOO is not defined,
unlike in C++. Reported by Dan Dennedy.
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