diff options
| -rw-r--r-- | pkgs/build-support/setup-hooks/reproducible-builds.sh | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/pkgs/build-support/setup-hooks/reproducible-builds.sh b/pkgs/build-support/setup-hooks/reproducible-builds.sh index 2d8db6ff7d3..5b01c213fe4 100644 --- a/pkgs/build-support/setup-hooks/reproducible-builds.sh +++ b/pkgs/build-support/setup-hooks/reproducible-builds.sh @@ -1,4 +1,9 @@ # 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. -export NIX_CFLAGS_COMPILE+=" -frandom-seed=${out##*/}" +# We also truncate the hash so that it cannot cause reference cycles. +export NIX_CFLAGS_COMPILE+=" -frandom-seed=$( + outbase="${out##*/}" + randomseed="${outbase:0:10}" + echo $randomseed +)" |