bug#81766: gzip-1.14.96-72fa on Linux/s390

[GNU gzip discussion and bug reports.]

Jim Meyering wrote:
> I've just pushed the attached, which should fix it.

Thanks. I confirm that it fixes the problem in 32-bit mode,
and that the build in 64-bit mode still works fine (both with
configure option '--enable-dfltcc').

Bruno