From 6521529c23fe979cc29867a25ede3a355e5b410c Mon Sep 17 00:00:00 2001
From: Thomas Tuegel <ttuegel@gmail.com>
Date: Wed, 11 May 2016 13:20:57 -0500
Subject: [PATCH] quassel: fix SSL detection with Qt 5.6

---
 pkgs/applications/networking/irc/quassel/qt-5.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/applications/networking/irc/quassel/qt-5.nix b/pkgs/applications/networking/irc/quassel/qt-5.nix
index 4ef1a9c45824..d631f4aa2146 100644
--- a/pkgs/applications/networking/irc/quassel/qt-5.nix
+++ b/pkgs/applications/networking/irc/quassel/qt-5.nix
@@ -41,6 +41,9 @@ in with stdenv; mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  # Prevent ``undefined reference to `qt_version_tag''' in SSL check
+  NIX_CFLAGS_COMPILE = [ "-DQT_NO_VERSION_TAGGING=1" ];
+
   buildInputs =
        [ cmake makeWrapper qtbase ]
     ++ lib.optionals buildCore [qtscript qca-qt5]