http://bugs.winehq.org/show_bug.cgi?id=58422
--- Comment #1 from Rémi Bernon rbernon@codeweavers.com --- I don't see any difference in the reported GL_EXTENSIONS string before/after the change, with/without these environment variables. Only difference is that the extensions are now reported in glGetStringi as they should.
I don't know why this regressed but I think you can use an earlier version instead of 17700 and that it should fix the problem?