[MERGE] Fast _walkdirs for win32

[Alexander Belchenko]

Adrian Wilkins пишет:
> :
> [...]
>>> 2) But anyway it failed because linker cannot find Win32 API functions:
>>>
> 
> That's odd, it builds fine here.

Then something wrong with my computer.

> Which environment are you using?

IIUC it's called Microsoft Visual Studio .NET 2003.

> I'm on MS Visual C++ Toolkit 2003, and I'm using it's headers and libraries.
> This corresponds to the environment used to build Python 2.5.
> 
> AFAIK jam is using MinGW.