arm-wince D crosscompiler on the way, request help with mmap

[Chad J]

I have an update on this:

I managed to get version(Win32) to work by adding a case in 
d/target-ver-syms.sh for "pe".  While I was at it I noticed the target 
cpu list, and add in a case for "arm" that makes version(ARM) work.

version(Windows) is still broken though.