Paul Eggert writes: > Yes, that must be it. I installed the attached into gzip master on Savannah; > does it fix things for you? That fixes the compilation of gzip.c, but of course causes a link failure since it leaves two calls to function do_chown() that is no longer defined. The hack I used to build the Debian gzip 1.9-1 upload I did last night is to conditionally add two bogus typedefs and elide the function content if __MINGW32__ is defined. So far, that seems to work ok. My patch is attached to this email. It does feel like an "ugly" approach, but I just got confused trying to unwind how the configure code which learns there are no *chown() functions in the mingw environment didn't actually cause the right things to happen in the build. Since apparently I'm the first person to stumble over this since you added do_chown shortly after the gzip 1.6 release, I doubt it's worth much more time from either of us to come up with a "cleaner" patch... Feel free to use some or all of my patch, but I am also happy to update may packaging for Debian if you choose to put more time in this and develop a better solution. Regards, Bdale