Bug#1029801: tbox: reproducible builds: timestamp embedded in tbox.config.h

[Vagrant Cascadian]

Source: tbox
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 build time is embedded in /usr/include/tbox/tbox.config.h:

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

  /usr/include/tbox/tbox.config.h

  #define·TB_CONFIG_VERSION_BUILD·20240228
  vs.
  #define·TB_CONFIG_VERSION_BUILD·20230127

The attached patch to configure fixes this by calling date with
arguments to ensure a deterministic timestamp, falling back to the
default behavior.

According to my local tests, with this patch applied, tbox should
build reproducibly on tests.reproducible-builds.org!

Thanks for maintaining tbox!

live well,
  vagrant
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