From 27873366b9536b892e16c477abd38c68accfda46 Mon Sep 17 00:00:00 2001
From: Peng Mei Yu <pmy@xqzp.net>
Date: Sat, 18 Sep 2021 11:47:36 +0800
Subject: [PATCH] smartdns: Fix systemd service

---
 pkgs/tools/networking/smartdns/default.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/tools/networking/smartdns/default.nix b/pkgs/tools/networking/smartdns/default.nix
index f7e38c0eba1..8ac1e137ca4 100644
--- a/pkgs/tools/networking/smartdns/default.nix
+++ b/pkgs/tools/networking/smartdns/default.nix
@@ -13,6 +13,14 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ openssl ];
 
+  # Force the systemd service file to be regenerated from it's template.  This
+  # file is erroneously added in version 35 and it has already been deleted from
+  # upstream's git repository.  So this "postPatch" phase can be deleted in next
+  # release.
+  postPatch = ''
+    rm -f systemd/smartdns.service
+  '';
+
   makeFlags = [
     "PREFIX=${placeholder "out"}"
     "SYSTEMDSYSTEMUNITDIR=${placeholder "out"}/lib/systemd/system"