Hi,

Whilst working on the Reproducible Builds effort [0], we noticed that
piglit could not be built reproducibly.

This is because when rendering sets in an XML file, it does so via by
calling repr() on the set object, which results in nondeterminstic
output.

Patch attached that renders the set as sorted whilst retaining the
"{a, b, c}" nomenclature.

  [0] https://reproducible-builds.org/


Regards,

...

This still appears to be an issue on both reproduce.debian.net:

https://reproduce.debian.net/excuses.html?source_name=piglit

As well as tests.reproducible-builds.org:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/piglit.html

I have just confirmed that the proposed patch fixes the issue.

I would like to NMU this in the coming weeks to fix this issue; please
let me know of any outstanding concerns!


live well,
  vagrant