Patches to build on DJGPP

[Mark Kettenis]

> Date: Sun, 10 Aug 2008 06:19:55 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > From: Pedro Alves <pedro@codesourcery.com>
> > Date: Sat, 9 Aug 2008 22:41:46 +0100
> > 
> > Here are the left over patches I used to build GDB on DJGPP.
> 
> They are fine with me, except that I'd prefer to include sys/time.h
> for select.

If so, can that include be moved to gdb_select.h?  It is a
prerequisite for using select(2) on many other systems.  I guess so
far we've just been lucky that it has been included on those system
through some other way.