[patch gdb]: Fix some DOS-path related issues in gdb

[Joel Brobecker]

> Is that use-case even practical?  Who would develop on Windows if they
> have Linux or Irix?

I really can't say that this is going to happen frequently...
But I've seen situations where developers cross compile from
their Windows desktop and then execute on a server running a Unix-like
system.  It might make less sense for GNU/Linux (I think that people
are less scared of it, these days), but could make more sense for
IRIX - I don't know how easy it is to procure a machine running
IRIX these days...

-- 
Joel