Bug#1039500: menu: reproducible builds: embeds timestamp in menu.info.gz

[Vagrant Cascadian]

Source: menu
Severity: normal
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

The timestamp is embedded in the gzip headers of menu.info.gz:

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

  /usr/share/info/menu.info.gz

  gzip·compressed·data,·was·"menu.info",·last·modified:·Mon·Jun·26·13:22:38·2023,·max·compression,·from·Unix
  vs.
  gzip·compressed·data,·was·"menu.info",·last·modified:·Sun·Jul·28·19:49:45·2024,·max·compression,·from·Unix

The attached patch to debian/rules works around this by uncompressing
the menu.info.gz and letting dh_compress handle the compression.

A better solution might be to fix this upstream, by using "gzip
--no-name". It looks like doc/Makefile.* would be the place, but I had
no luck adding it to the gzip calls there.

According to my local tests, with this patch (and the buildpath patch),
menu should build reproducibly on tests.reproducible-builds.org!

Thanks for maintaining menu!

live well,
  vagrant
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