73a0cb10
by Benjamin Drung at 2023-05-05T12:09:59+02:00
Build tzdata with PACKRATLIST=zone.tab
Recent builds have been using `PACKRATDATA=backzone` in order to add all
out-of-scope lower-quality pre-1970 data that exist in backzone. However it
also leads to time zones like America/Ensenada, Atlantic/Jan_Mayen,
Europe/Tiraspol, and Pacific/Enderbury to change.
Building with `PACKRATDATA=backzone PACKRATLIST=zone.tab` is designed to
resurrect this data which used to be in tzdata without incurring changes to
other data.
Also add an autopkgtest test case for post-1970 symlink consistency.
Bug-Ubuntu: https://launchpad.net/bugs/2017999
Fixes: 09c572f98c4d ("Build timezones that differ pre-1970")
Signed-off-by: Benjamin Drung <benjamin.drung@canonical.com>