Minimum POSIX standard

[Clinton Bunch <cdb_zsh@xxxxxxxxxxx>]

What is the minimum POSIX standard modern Zsh code is intended to 
conform to?  Is development still trying to support systems that don't 
conform at least to POSIX.1-2001?

I didn't really find an answer in the Development Guide

 I find it hard to believe that modern versions of Zsh are expected to 
run on 20 year old systems.  Especially since there are un-ifdef uses of 
snprintf which wasn't standardized in the C library until the C99 spec.


P.S.  The mailing list archives need a better search feature.  I 
couldn't determine if this question had been asked before:)