As of 2020-08-01, OpenBSD's system zlib is 1.2.3 which doesn't have gzoffset(). However we can get away with this by making gzfilebuf::approxOffset() always return zero.
As of 2020-08-01, OpenBSD's system zlib is 1.2.3 which doesn't have gzoffset(). However we can get away with this by making gzfilebuf::approxOffset() always return zero.