Bug#791362: perl: build timezone affects LOCALTIME_{MIN,MAX}

[Niko Tyni]

Control: found -1 5.30.0-8

On Fri, Jul 03, 2015 at 11:16:46PM +0300, Niko Tyni wrote:
> On Mon, May 04, 2015 at 02:28:04PM +0200, Jérémy Bobbio wrote:

> > Another issue that surfaced now that we are doing timezone variations is
> > that LOCALTIME_MIN and LOCALTIME_MAX gets different values depending on
> > the value of the TZ environment variable.
> 
> > The minimum I had on my amd64 system is with TZ=UTC-24, -62167305600.
> > The maximum is with TZ=UTC and is 67768036191590399.
> > 
> > It feels like a bug to have something that can be configured through an
> > environment variable on a running system affect what gets encoded in the
> > binary.
> 
> This feels like a bug to me too, and should be handled separately.
> I'm cloning this and will export TZ=UTC in debian/rules, at least
> for now.

The TZ=UTC part was accidentally dropped in the build system debhelper
conversion for 5.30 packaging. This resulted in a reproducibility
regression that Holger pointed out to me on IRC (thanks!).

I'll re-instate TZ=UTC in 5.30.0-9 or so, but clearly the underlying
issue remains.
-- 
Niko Tyni   ntyni at debian.org