need help making src:fuzzylite reproducible

[Johannes Schauer]

Hi,

Quoting Vagrant Cascadian (2020-10-28 16:46:11)
> >> Unfortunately, the reprotest job of my salsa CI pipeline still fails:
> >> 
> >> https://salsa.debian.org/debian/fuzzylite/-/pipelines/189461
> >> 
> >> I do not understand why. You can also use above link to download the artifacts
> >> and investigate yourself. The html output of diffoscope is in the first link
> >> above. The only odd thing that I can see is this extra string '\k#pk'. I do not
> >> know where that comes from and why it's only part of one build and not the
> >> other.
> >
> > I now uploaded the new Debian revision despite the unreproducibility problem
> > above. The package has now been processed by reproducible.debian.net:
> >
> > https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/fuzzylite.html
> >
> > Looking at the diff, I don't understand where the differences come from.
> >
> > Can anybody help?
> 
> A somewhat educated guess is it has successfully stripped out the build
> path from some things, but because the length of the build path is
> different between the two builds, the padded area where the build path
> would have been stored is still longer. :/

I made a test and patched away all instances of __FILE__ from the upstream
source and then did a build with fixfilepath disabled by setting
reproducible=-fixfilepath in debian/rules.

There are still some weird differences in length that I cannot explain. See
salsa CI output

https://salsa.debian.org/debian/fuzzylite/-/jobs/1114548

or the attached diffoscope output. Maybe this is a completely different issue,
but I would've thought that with __FILE__ gone from the upstream source, there
should be no differences left?

Thanks!

cheers, josch
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