[Zope3-dev] PosixTimeZone tzinfo implementation

[Tim Peters]

[Stuart Bishop]
> I've got an tzinfo implementation that should work on any system
> that provides the tzset(3), localtime(3) calls.

Probably not.  The code believes a struct tm has a tm_gmtoff member, but
that's not in ANSI C or in POSIX:

    http://www.opengroup.org/onlinepubs/007908799/xsh/time.h.html

googling suggests it's a BSD extension.  Guido's pure-Python Local.py (in
the Python CVS sandbox, nondist/sandbox/datetime/Local.py) may be trying to
get at the same kind of thing -- unsure.