I think both of you could stand to turn down the rhetoric :)

Laurent: we're not saying there's no issue, we're saying we don't see an acceptable fix for the issue.

So the bottom line is that for this situation to improve someone is going to have to go through the hassle of figuring out *how* to make it better (working code, not just words, I think), and convincing people that it is a good idea.  The better the solution is, the easier it will be to get it committed.  I don't think a "stop gap" kind of solution will be good enough (such as making the global os.sep value settable...I don't think that kind of global state change will fly, though I could be wrong).

There are other people interested in SCons/mingw support, and this could conceivably be a configure time option for such support, but *that* is a whole other area of discussion.  For that to get off the ground, there has to be someone willing to commit to supporting it (more than one, someone, I suspect) who can work well enough with the community to eventually become part of the core team.  (There are patches in this tracker relevant to that, and at least one someone working on making them better, but admit I haven't been following that activity and don't know if any of those patches have gotten reviewed yet.)