Bug#977151: cctools: reproducible builds: Embeds build date in binaries

[Vagrant Cascadian]

Source: cctools
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 date gets embedded in several binaries:

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

  /usr/bin/deltadb_query
  203 	2020-11-26·00:34:53·-1200	203 	2021-12-30·09:02:59·+1400


The attached patch passes --build-date using SOURCE_DATE_EPOCH, which is
set to the last debian/changelog entry so that timestamps are
reproducible between builds:

  https://reproducible-builds.org/docs/source-date-epoch/

Thanks for maintaining cctools!

live well,
  vagrant

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