[Reproducible-builds] Wrong reproducibility reported for libdevel-cover-perl? (i.e. I suspect a false negative)

[Axel Beckert]

Hi,

Paul Wise wrote:
> On Fri, Apr 22, 2016 at 6:34 AM, Dominic Hargreaves wrote:
> > The build path is part of the specification for the overall environment,
> > if I'm not mistaken - so the build is allowed to vary with changes to it.
> >
> > https://wiki.debian.org/ReproducibleBuilds/Howto
> >
> > I suppose embedding build paths is too widespread to make eliminating
> > that feasible, and making the build path the same is easy enough?
> 
> All correct, see the .buildinfo:
> 
> Build-Path: /build/libdevel-cover-perl-1.21
> 
> If you look at the build logs, you will see they both use the same path:
> 
> https://tests.reproducible-builds.org/logdiffs/unstable/amd64/libdevel-cover-perl_1.21-1.diff.gz
> 
> -make[1]: Entering directory '/build/libdevel-cover-perl-1.21'
> +make[1] : on entre dans le répertoire « /build/libdevel-cover-perl-1.21 »

Meh. Is it really that bad if we also take the build path into
account?

I think also using different build paths would really dig up some real
bugs like the one I fought with last night.

		Regards, Axel
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