BZFlag - Multiplayer 3D Tank Game

Hi.

While working on making the latest version of bzflag working on OpenBSD,
I ran into the following issue when starting the game.

$ bzflag
ERROR: Unable to initialize an OpenGL context

I don't get such an error with version 2.0.8, only with 2.0.10.
I tried digging into the sources but didn't find obvious change between
the 2 versions that would lead to such an error.

Thanks in advance for any hint.
Cheers!

-- 
Antoine