From 8f6a8f0757515ab2bd0616f0e0c32a279b590f4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Forsman?= <bjorn.forsman@gmail.com>
Date: Thu, 25 Aug 2016 17:28:16 +0200
Subject: [PATCH] system-config-printer: fix expansion of $(out) in .service
 file

Allows the configure-printer@.service to find the udev-configure-printer
program (correct ExecStart path).
---
 pkgs/tools/misc/system-config-printer/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/tools/misc/system-config-printer/default.nix b/pkgs/tools/misc/system-config-printer/default.nix
index 67ec9585c7a..29a4f7d7b9c 100644
--- a/pkgs/tools/misc/system-config-printer/default.nix
+++ b/pkgs/tools/misc/system-config-printer/default.nix
@@ -59,6 +59,10 @@ in stdenv.mkDerivation rec {
 
       # The below line will be unneeded when the next upstream release arrives.
       sed -i -e "s|/usr/bin|$out/bin|" "$out/share/dbus-1/services/org.fedoraproject.Config.Printing.service"
+
+      # Manually expand literal "$(out)", which have failed to expand
+      sed -e "s|ExecStart=\$(out)|ExecStart=$out|" \
+          -i "$out/etc/systemd/system/configure-printer@.service"
     '';
 
   meta = {