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stdenv: set SOURCE_DATE_EPOCH to a value python supports

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in nix-shell this value breaks the build because python's
packaging refuses to build timestamps that date before 1980.
This commit is contained in:
Jörg Thalheim 2020-06-08 11:52:58 +01:00
parent 8576d24b2a
commit bc4927a526
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1 changed files with 6 additions and 5 deletions
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11
pkgs/stdenv/generic/setup.sh
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@ -219,12 +219,13 @@ printWords() {
# Initialisation.
# Set a fallback default value for SOURCE_DATE_EPOCH, used by some
# build tools to provide a deterministic substitute for the "current"
# time. Note that 1 = 1970-01-01 00:00:01. We don't use 0 because it
# confuses some applications.
# Set a fallback default value for SOURCE_DATE_EPOCH, used by some build tools
# to provide a deterministic substitute for the "current" time. Note that
# 315532800 = 1980-01-01 12:00:00. We use this date because python's wheel
# implementation uses zip archive and zip does not support dates going back to
# 1970.
export SOURCE_DATE_EPOCH
: ${SOURCE_DATE_EPOCH:=1}
: ${SOURCE_DATE_EPOCH:=315532800}
# Wildcard expansions that don't match should expand to an empty list.