Recent changes to GDC.

[Daniel Green]

On 1/16/2012 3:34 PM, Manu wrote:
> I went through that stuff you submitted the patch for, then I also ran
> into a conflict between linux sockets and windows sockets, and that's as
> far as I got when I stopped.

The only posix file that gave me trouble was `core/sys/posix/sys/un.d`. 
  GDC turns it into a header file.  DMD doesn't for Windows.

It's been corrected in tip.