Design advice sought: Backend implementation

[Marcus Agehall (nu med K-m�rkt fastighet och ny elcentral) @ Pike (-) developers forum]

I like anything that will allow us to use SDL and GL on OSX.. :)

After reading your proposal, my initial gut feeling is that the second
or third option (ie new backend for OSX or extending the existing one)
would be the best ones to explore.

I'm sure Grubba will have some thoughts on the subject as well...