Can someone please help me to understand this commit?

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Guys,

Looking at Cesar's clone of our original CVS, I'm utterly confused by:
https://sourceforge.net/u/cstrauss/mingwrt/ci/56e6189f267527e4dd710d55a16de39f7bf21c4a/

It appears to have been committed, originally, by Earnie, and I have
too issues with it:

1) The declaration of _locale_t surely belongs in <locale.h>, not in
<_mingw.h>.  Furthermore, as a reference to an opaque type, we could
just as well define it as a pointer to void, (although a pointer to a
single incomplete structure type may make sense); I can certainly see
absolutely no advantage in defining it as an aggregate of *two* other
opaque structural types.

2) I am utterly mystified by the changes to mingwex/tsearch.c, (which
appear to have accidentally have crept into the commit).  AFAICT, the
original code, (which has come from NetBSD), works just fine; I have
no idea what issue these changes were intended to resolve, but once
again AFAICT, they should have absolutely no functional effect whatsoever.

What am I missing?

- -- 
Regards,
Keith.

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