libctf compilation failure on MinGW

[Eli Zaretskii]

> From: Nick Alcock <nick.alcock@oracle.com>
> Cc: Joel Brobecker <brobecker@adacore.com>, gdb-patches@sourceware.org
> Date: Sat, 04 Jul 2020 19:16:22 +0100
> 
> > GDB is about to branch for the imminent GDB 10.1 release, and
> > currently the problems I described back then are still with us.
> 
> Oh, I thought you pushed a fix already! Sorry!

We did, but only on the-then GDB 9.1 branch.  The master branch wasn't
changed, as we expected to have you update the upstream with the
proper solution.

> I'll post a fix sticking suitable E* #defines in once I get back from
> holiday on Tuesday.
> 
> > we'd like a solution soon, and need to decide whether to go with the
> > same workaround we used for GDB 9.1 or use a better change from you.
> 
> I think that workaround is in hindsight better than the change I
> proposed, and should go in trunk. :/

Thanks.