[RFC] patch to make GDB open a new terminal window for the inferior

[Eli Zaretskii]

> From: Thiago Jung Bauermann <bauerman@br.ibm.com>
> Date: Tue, 19 May 2009 21:18:01 -0300
> 
> I'm posting it to see what people think of it, and if anyone want to
> adopt it for further development.

This code needs to be carefully ifdef'ed for platforms that don't
support features it relies upon, such as O_NOCTTY, "/dev/ptmx", and
`grantpt'.