MinGW compilation warnings in libiberty's waitpid.c

[Joel Brobecker]

> What can I do to expedite the process?  This currently holds the 8.0
> release, and I'm uneasy to be the culprit.

The way I usually do it is grab the commit in GCC, and apply it
as is in the GDB repository. To make it easier, I use the git
mirror of the GCC repository, because I can then just add the
GCC repository as one of my remotes, fetch from there, and then
cherry-pick. If you prefer to work from GCC's SVN repository,
just use SVN to get the diff, and re-apply it by hand in GDB's
git repository. The advantage with the cherry-pick is that git
does nearly all of the work (revision log, etc).

-- 
Joel