From bcbda5d95b01c40fcb06df45996a402a221b6867 Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Fri, 24 Apr 2015 15:28:48 -0700
Subject: [PATCH] ntp: Refactor and add signing support

---
 pkgs/tools/networking/ntp/default.nix | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/pkgs/tools/networking/ntp/default.nix b/pkgs/tools/networking/ntp/default.nix
index 93dad85ce1e7..9bd1e7f48538 100644
--- a/pkgs/tools/networking/ntp/default.nix
+++ b/pkgs/tools/networking/ntp/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, autoreconfHook, libcap ? null }:
+{ stdenv, fetchurl, autoreconfHook, libcap ? null, openssl ? null }:
 
 assert stdenv.isLinux -> libcap != null;
 
@@ -10,11 +10,18 @@ stdenv.mkDerivation rec {
     sha256 = "0ccv9kh5asxpk7bjn73vwrqimbkbfl743bgx0km47bfajl7bqs8d";
   };
 
-  configureFlags = stdenv.lib.optional (libcap != null) "--enable-linuxcaps";
+  configureFlags = [
+    "--sysconfdir=/etc"
+    "--localstatedir=/var"
+    "--enable-ignore-dns-errors"
+  ] ++ stdenv.lib.optional (libcap != null) "--enable-linuxcaps";
 
-  buildInputs = [ autoreconfHook libcap ];
+  nativeBuildInputs = [ autoreconfHook ];
+  buildInputs = [ libcap openssl ];
 
-  postInstall = "rm -rf $out/share/doc";
+  postInstall = ''
+    rm -rf $out/share/doc
+  '';
 
   meta = {
     homepage = http://www.ntp.org/;