Christian Widmer 87aaa9e145 Window/Unix: Fix compilation with glxext header versions >=20180525 ... When mesa updated their headers, they changed the include guard from __glxext_h_ to __glx_glxext_h_, which breaks compilation due to conflicting declarations. This commit modifies the preprocessor directives to allow for compilation with older and newer mesa header versions. Fixes: #1472		2018-08-28 20:36:08 +02:00
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SFML	Window/Unix: Fix compilation with glxext header versions >=20180525	2018-08-28 20:36:08 +02:00