From 114cb31b659271ad38e4717291622e88f0126ddb Mon Sep 17 00:00:00 2001
From: Joachim Fasting <joachifm@fastmail.fm>
Date: Sat, 7 Mar 2015 19:09:52 +0100
Subject: [PATCH] dnscrypt-proxy: enable systemd support on linux

This permits using socket activation in the NixOS service
module.
---
 pkgs/tools/networking/dnscrypt-proxy/default.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/networking/dnscrypt-proxy/default.nix b/pkgs/tools/networking/dnscrypt-proxy/default.nix
index 11dadf9dcd8..9d86f648470 100644
--- a/pkgs/tools/networking/dnscrypt-proxy/default.nix
+++ b/pkgs/tools/networking/dnscrypt-proxy/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, libsodium }:
+{ stdenv, fetchurl, libsodium, pkgconfig, systemd }:
 
 stdenv.mkDerivation rec {
   name = "dnscrypt-proxy-1.4.3";
@@ -8,7 +8,11 @@ stdenv.mkDerivation rec {
     sha256 = "0cij80ryxnikpmm6s79c2fqg6bdiz1wdy50xrnd7w954vw9mhr0b";
   };
 
-  buildInputs = [ libsodium ];
+  configureFlags = ''
+    ${stdenv.lib.optionalString stdenv.isLinux "--with-systemd"}
+  '';
+
+  buildInputs = [ pkgconfig libsodium ] ++ stdenv.lib.optional stdenv.isLinux systemd;
 
   meta = {
     description = "A tool for securing communications between a client and a DNS resolver";