20261015:
- rollback 20260929
- removed obsolete interlock code needed for Linux < 3.14
- fix for MacOS statistics initialization

20260929 (WITHDRAWN - MacOS already worked since 20251025):
- added MacOS support (patch provided by Robert Smith, WANSecurity, Inc)

20260926:
- prefer info from fpathconf over PIPE_BUF
- integrated some patches from Peter Pentchev
  - build fixes
  - buffer allocation limitation
  - typos and grammar fixes