[Bug 41930] Civilization III Complete shows black terrain (Wine compiled with OSMesa support)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=41930

--- Comment #27 from Bryan Varner  ---
Ok! So the mesa headers are out of date with the implementation.

Looking into the actual osmesa.c source - it looks like it's saying it'll wrap
the the actual buffer created to CHAN_BITS size with one that reports /
functions as the type specified.

Perhaps I should do some more debugging here -- I'm wondering if osmesa is
returning a GL_FALSE (resulting in the black terrain) or if there's something
else amiss here.