problem with ltzset()

[Joel Tornatore]

I am seeing a problem with _ltzset near daylight savings time
when non-POSIX TZ values are used. Here is the output of a
program that locates discontinuities in the time (seconds
since epoch are increased by 3600; check if hour increased by
one):

gap % tzcheck
TZ=PST8PDT
720005582:      9/25/92 1:33
733919582:      3/4/93  3:33
752059982:      9/31/93 1:33
^C
gap % setenv TZ US/Pacific
gap % tzcheck
TZ=US/Pacific
720034366:      9/25/92 9:32
733948366:      3/4/93  11:32
752088766:      9/31/93 9:32

It's off by the GMT offset, 8 hours, in every case.
If EST5EDT and US/Easter are used, it's off by 5 hours.

Has anyone seen or fixed this problem? This is on SVR4.

joel tornatore
jrt at eng.sun.com