Winelib: DFL -> Linux?

[dsimcha]

== Quote from cemiller (chris at dprogramming.com)'s article
> If you attempt to build a windows app with DMD on linux and link against
> winelib, the first thing you hit is std.c.windows.windows static
> assert(0); // Windows only

Ok, well let's say you fixed all these nagging little issues.  Where does this
stand feasibility-wise?

It's not something I'm going to actually try to do in the near future (I have too
much on my plate), but I might do it eventually, or if someone else wants to do
it, it'd be a great way to give D a cross-platform GUI lib with a nice API.  I'm
just trying to feel out how feasible this is, whether anyone is willing to make a
serious attempt at it, and whether winelib is mature enough to be taken seriously
for near-term practical use.