Re: tz strftime %V week numbers are incompatible with Solaris, GNU

The current strftime code is supposed to deliver up ISO 8601 week numbers when "%V" is used; it also delivers up ISO 8601 year numbers--either two or four digits worth--with "%g" and "%G". (The ISO 8601 year may be different from the calendar year). So far as I know, the code's current behavior matches what ISO 8601 calls for. XPG4 (as of 1994-04-09) explicitly (and presumably erroneously) called for delivering "53" as the week number in some circumstances; defining "XPG4_1994_04_09" buys this behavior. I'm eager to continue delivering ISO-8601-style numbers as the default behavior. --ado