Re: FTBFS if built twice in a row

[Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de>]

Russ Allbery <rra@debian.org> writes:

> Gerard Lledó <gerard.lledo@gmail.com> writes:
>
>> My understanding of debian is far from being complete, but in order to
>> be built for a second time a clean is performed before (at least, using
>> debuild). So directory should look like a fresh $ apt-get source
>> packagename. And the contents of the files should also be the same.
>> Checking that would be easier than running 2 times the compilation
>> process and maybe it could be implemented as a checking tool that
>> debuild could run before finishing the package, like it does with
>> lintian.
>
> This check would fail many packages that can still be built twice in a row
> (any package that runs autotools during the build process without doing a
> complicated dance to preserve the upstream-shipped files, for example),
> and it's not clear to me that there's a consensus that those packages are
> really broken.

But exceedingly anoying when doing a patch and debdiff.

Imho "dpkg-buildpackage -b; dpkg-buildpackage -S" should produce an
identical diff.gz excluding timestamps. But lets irst fix packages
where "dpkg-buildpackage -b;dpkg-buildpackage -b" fails.

MfG
        Goswin