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-rw-r--r--infra/libkookie/nixpkgs/pkgs/build-support/setup-hooks/reproducible-builds.sh4
1 files changed, 4 insertions, 0 deletions
diff --git a/infra/libkookie/nixpkgs/pkgs/build-support/setup-hooks/reproducible-builds.sh b/infra/libkookie/nixpkgs/pkgs/build-support/setup-hooks/reproducible-builds.sh
new file mode 100644
index 000000000000..2d8db6ff7d3c
--- /dev/null
+++ b/infra/libkookie/nixpkgs/pkgs/build-support/setup-hooks/reproducible-builds.sh
@@ -0,0 +1,4 @@
+# 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##*/}"