opentk/opentk — pull request #163 by thefiddler (2014-08-09 19:22:14+00:00)
Title: [SDL] Workaround for a Mono crash in SDL.JoystickGetGUID

It appears that Mono 3.4.0 fails to marshal SDL_JoystickGUID
correctly when used as a return value. Changing the fixed buffer
to a couple of long fields allows the struct to be marshalled
correctly.