From 43f45fe24fd9cce3c9011c5f53cfddbe979abd39 Mon Sep 17 00:00:00 2001
From: Lin Jian <me@linj.tech>
Date: Wed, 29 Mar 2023 13:44:15 +0800
Subject: [PATCH] zsh: fix the guard variable for /etc/set-environment

This guard variable is written to $out/etc/zshenv using
here-documents, so we need to escape it.
---
 pkgs/shells/zsh/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/shells/zsh/default.nix b/pkgs/shells/zsh/default.nix
index 3a5a83ad1f8c..18fa69c60427 100644
--- a/pkgs/shells/zsh/default.nix
+++ b/pkgs/shells/zsh/default.nix
@@ -71,7 +71,7 @@ if test -e /etc/NIXOS; then
   else
     emulate bash
     alias shopt=false
-    if [ -z "$__NIXOS_SET_ENVIRONMENT_DONE" ]; then
+    if [ -z "\$__NIXOS_SET_ENVIRONMENT_DONE" ]; then
       . /etc/set-environment
     fi
     unalias shopt