[RFC] Missing sleep function for mingw hosts

[Eli Zaretskii]

> From: "Pierre Muller" <pierre.muller@ics-cnrs.unistra.fr>
> Date: Tue, 29 Mar 2011 09:36:46 +0200
> 
> mingw does not have a sleep function in its library.
> This prevents currently successful compilation of
> mingw64 with --enable-targets=all option.

You say "mingw64" -- does that mean it does compile with mingw32?  If
so, how come it fails with the 64-bit build?

> I found that there is a substitute for sleep in gnulib:
> http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=lib/sleep.c;hb=d60
> f3b0c6b0f93a601acd1cfd3923f94ca05abb0
> 
>   What is the rule to add new parts into gnulib subdirectory?
> Would inclusion of gnulib sleep.c source code
> be possible to fix the above problem?

I'd rather we had a replacement in win32-nat.c, instead of importing
gobs of gnulib stuff needed to provide such a trivial replacement.
gnulib is GPL, so we can simply copy the code into our sources.