From f488b617ab41daaaa6bcae761a4fa92536d69a0e Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sat, 18 Feb 2023 14:53:42 +0000
Subject: [PATCH] setup-hooks/reproducible-builds.sh:
 NIX_OUTPATH_USED_AS_RANDOM_SEED (take 2) (#216967)

This time the change targets `staging`.

This reverts commit e1f1c7eb79fefa5e640bfbc9e023619ef095935a.
---
 pkgs/build-support/setup-hooks/reproducible-builds.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/build-support/setup-hooks/reproducible-builds.sh b/pkgs/build-support/setup-hooks/reproducible-builds.sh
index 7b52f84df67b..5e27ce8a25fe 100644
--- a/pkgs/build-support/setup-hooks/reproducible-builds.sh
+++ b/pkgs/build-support/setup-hooks/reproducible-builds.sh
@@ -3,7 +3,8 @@
 # derivation and not easily collide with other builds.
 # We also truncate the hash so that it cannot cause reference cycles.
 NIX_CFLAGS_COMPILE="${NIX_CFLAGS_COMPILE:-} -frandom-seed=$(
-    outbase="${out##*/}"
+    randSeed=${NIX_OUTPATH_USED_AS_RANDOM_SEED:-$out}
+    outbase="${randSeed##*/}"
     randomseed="${outbase:0:10}"
     echo $randomseed
 )"