From 0f7088161aaaee3caa73086a84e9b75f865d256d Mon Sep 17 00:00:00 2001
From: Robin Gloster <mail@glob.in>
Date: Mon, 28 Mar 2016 23:33:19 +0000
Subject: [PATCH] vacuum: fix build

---
 .../networking/instant-messengers/vacuum/default.nix            | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/applications/networking/instant-messengers/vacuum/default.nix b/pkgs/applications/networking/instant-messengers/vacuum/default.nix
index d7798273e7c6..b2f75275586b 100644
--- a/pkgs/applications/networking/instant-messengers/vacuum/default.nix
+++ b/pkgs/applications/networking/instant-messengers/vacuum/default.nix
@@ -16,6 +16,8 @@ stdenv.mkDerivation rec {
     qt4 openssl xproto libX11 libXScrnSaver scrnsaverproto xz zlib
   ];
 
+  NIX_LDFLAGS = "-lz";
+
   configurePhase = ''
     qmake INSTALL_PREFIX=$out -recursive vacuum.pro
   '';