From 200fd97b046bef3f923af80ef9a776af582e7714 Mon Sep 17 00:00:00 2001
From: "Ricardo M. Correia" <rcorreia@wizy.org>
Date: Thu, 23 May 2013 02:11:21 +0000
Subject: [PATCH] chrony: Add readline and libcap (on Linux) as dependencies

libcap is needed for chronyd to drop privileges when starting up.
readline was added as a convenience for when using chronyc.
---
 pkgs/tools/networking/chrony/default.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/networking/chrony/default.nix b/pkgs/tools/networking/chrony/default.nix
index 96e2ecccd0ba..d7fe07570574 100644
--- a/pkgs/tools/networking/chrony/default.nix
+++ b/pkgs/tools/networking/chrony/default.nix
@@ -1,4 +1,6 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, libcap, readline }:
+
+assert stdenv.isLinux -> libcap != null;
 
 stdenv.mkDerivation rec {
   name = "chrony-1.27";
@@ -8,6 +10,8 @@ stdenv.mkDerivation rec {
     sha256 = "17dfhcm5mrkg8ids0ajwscryr7fm7664kz10ygsa1ac047p3aj6l";
   };
   
+  buildInputs = [ readline ] ++ stdenv.lib.optional stdenv.isLinux libcap;
+
   meta = with stdenv.lib; {
     description = "A pair of programs which are used to maintain the accuracy of the system clock on a computer.";
     homepage = "http://chrony.tuxfamily.org/";