[PATCH] Let gdb know that cygwin is dosish

[Eli Zaretskii]

On Tue, 16 Oct 2001, Christopher Faylor wrote:

> I recently found that a bug that I'd been halfheartedly tracking
> down for months was caused by the fact that some of gdb's code didn't
> recognize the fact that f:/ was an absolute path under cygwin.
> 
> This patch should fix that as well as a number of other odd
> incompatibilities with mixed case.

Sounds fine to me (and long overdue ;-), but do Cygwin library
functions support the drive letter braindamage?  If not, you will get
yourself in trouble.

I wrote filenames.h, so if you need my approval, you've got it.  I don't 
know who's its responsible maintainer, though.