Need help with getting a package to build reproducibly on arm*

[Vagrant Cascadian]

On 2021-01-07, Michael Biebl wrote:
> Am 07.01.21 um 18:24 schrieb Michael Biebl:
>> as can be seen at [1], systemd does not build reproducibly on armhf and
>> arm64 (while there is no problem on amd64 and i386).
>> 
>> The problem is, I have no idea what the diffoscope diff [2] means and
>> how I can make the package build reproducibly everywhere or how I can
>> further investigate this.
>> 
>> Any help here is greatly appreciated as I think reproducible-builds are
>> a great effort and I'd like to support that as much as I can.
>> 
>> Regards,
>> Michael
>> 
>> 
>> [1]
>> https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/systemd.html
>> [2]
>> https://tests.reproducible-builds.org/debian/rb-pkg/unstable/arm64/diffoscope-results/systemd.html

My best wild guesses would be parallelism, filesystem ordering or locale
differences causing various sort ordering differences.

I'm running a local build on arm64 with "reprotest --auto-build" to see
if it can help give us any better leads, will see if that shows anything
more useful... it could take some time on not particularly fast
hardware.


live well,
  vagrant
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