From fea908fde99e4dc812e973459875a082c72523f4 Mon Sep 17 00:00:00 2001
From: Stefan Frijters <sfrijters@gmail.com>
Date: Mon, 18 May 2026 13:43:58 +0200
Subject: [PATCH] stdenv: do not leak outputName out of loop

This is an implementation detail leaking out into the bash environment
and it did manange to confuse me as potentially being a way to get the "default"
output name when structuredAttrs is enabled, because of the "outputName" derivation attribute.
---
 pkgs/stdenv/generic/setup.sh | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index 1c5c82be25b7..98eeded49b8c 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -29,10 +29,15 @@ if [[ -n "${NIX_ATTRS_JSON_FILE:-}" ]]; then
     __structuredAttrs=1
     echo "structuredAttrs is enabled"
 
-    for outputName in "${!outputs[@]}"; do
-        # ex: out=/nix/store/...
-        export "$outputName=${outputs[$outputName]}"
-    done
+    _exportOutputsByName() {
+        local outputName
+        for outputName in "${!outputs[@]}"; do
+            # ex: out=/nix/store/...
+            export "$outputName=${outputs[$outputName]}"
+        done
+    }
+
+    _exportOutputsByName
 else
     __structuredAttrs=
     : "${outputs:=out}"