nixpkgs/pkgs/build-support/setup-hooks/reproducible-builds.sh
Vladimír Čunát 4bd38c330f
Revert #127736: stdenv changes towards an alternative shell
At least for now.  Such changes are risky (we have very many packages),
and apparently it needs more testing/review without blocking other
changes.

This reverts the whole range 4d0e3984918^..8752c327377,
except for one commit that got reverted in 6f239d7309 already.
(that MR didn't even get its merge commit)
2021-07-17 20:39:47 +02:00

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# Use the last part of the out path as hash input for the build.
# This should ensure that it is deterministic across rebuilds of the same
# derivation and not easily collide with other builds.
# We also truncate the hash so that it cannot cause reference cycles.
export NIX_CFLAGS_COMPILE+=" -frandom-seed=$(
outbase="${out##*/}"
randomseed="${outbase:0:10}"
echo $randomseed
)"