Bdale Garbee wrote:

> I'm (finally) working on updating the gzip in Debian to something newer
> than 1.6, which caused me to stumble over the addition of the do_chown
> function in gzip.c.  That's because I need to build both native Debian
> and Windows binary packages, the latter in support of a portion of the
> Debian installer system that has something to do with Windows.
> 
> The problem is that mingw doesn't provide uid_t or gid_t definitions,
> perhaps just because there isn't really an equivalent ownership
> construct in Windows?

Yes, that must be it. I installed the attached into gzip master on Savannah; 
does it fix things for you?