From 1a9fd7866b789ef99e4f4ac353e4da6bfe740aa3 Mon Sep 17 00:00:00 2001
From: Rhys-T <108157737+Rhys-T@users.noreply.github.com>
Date: Sat, 22 Feb 2025 15:15:13 -0500
Subject: [PATCH] noBrokenSymlinks: use umask instead of chmod to make
 unreadable symlinks

The stage2 stdenv uses Coreutils 9.4, which doesn't have `chmod -h` yet.
---
 pkgs/test/stdenv/no-broken-symlinks.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkgs/test/stdenv/no-broken-symlinks.nix b/pkgs/test/stdenv/no-broken-symlinks.nix
index 88777008c5cc..344f8b5afc1d 100644
--- a/pkgs/test/stdenv/no-broken-symlinks.nix
+++ b/pkgs/test/stdenv/no-broken-symlinks.nix
@@ -23,8 +23,10 @@ let
   # 'pass', to make sure the tests work properly for both kinds of platform.
   mkUnreadableSymlink = absolute: failIfUnsupported: ''
     touch "$out/unreadable-symlink-target"
-    ln -s${optionalString (!absolute) "r"} "$out/unreadable-symlink-target" "$out/unreadable-symlink"
-    chmod -h ugo-rwx "$out/unreadable-symlink"
+    (
+      umask 777
+      ln -s${optionalString (!absolute) "r"} "$out/unreadable-symlink-target" "$out/unreadable-symlink"
+    )
     if readlink "$out/unreadable-symlink" >/dev/null 2>&1; then
       nixErrorLog "symlink permissions not supported"
       ${optionalString failIfUnsupported "exit 1"}