Only initialise OpenGL if the user intends to load it (for real this time) (!796) · Merge requests · STJr / SRB2

Lactozilla requested to merge sdlglcontext into master Feb 18, 2020

Fix what !785 (closed) tried to fix, but correctly.
Merge !794 (merged) first, since this is based out of the branch from that request.

Only initialise OpenGL if the user intends to load it (for real this time)