On Mon, Jul 13, 2009 at 7:30 AM, Olson, Arthur David (NIH/NCI) [E] <olsona@dc37a.nci.nih.gov> wrote:
In a "permanent DST" situation, a POSIX TZ string such as...
       TZ=XDST9
...can get almost everything right, but the tm_isdst indicator in tm
structs will end up being set to zero.

How significant is that one bit (or do I mean zero bit?)?

The purpose of tm_isdst is primarily to indicate which of two possible timezone names (abbreviations) should be used, isn't it?  And if there is only one, then having tm_isdst always set to zero will indicate "use the only zone abbreviation", won't it?

--
Jonathan Leffler <jonathan.leffler@gmail.com>  #include <disclaimer.h>
Guardian of DBD::Informix - v2008.0513 - http://dbi.perl.org
"Blessed are we who can laugh at ourselves, for we shall never cease to be amused."