Allow to override build date with SOURCE_DATE_EPOCH #265
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Allow to override build date with
SOURCE_DATE_EPOCHin order to make builds reproducible.
See https://reproducible-builds.org/ for why this is good
and https://reproducible-builds.org/specs/source-date-epoch/
for the definition of this variable.
This date call works with many variants of date.
Also use
-u(UTC) to be independent of timezone.An alternative approach would be to drop the date here.
This PR was done while working on reproducible builds for openSUSE.