uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/networking/instant-messengers/vacuum/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchFromGitHub
+  , qt4, qmake4Hook, openssl
+  , xorgproto, libX11, libXScrnSaver
+  , xz, zlib
+}:
+stdenv.mkDerivation {
+  pname = "vacuum-im";
+  version = "1.3.0.20160104";
+
+  src = fetchFromGitHub {
+    owner = "Vacuum-IM";
+    repo = "vacuum-im";
+    rev = "1.3.0.20160104-Alpha";
+    sha256 = "1jcw9c7s75y4c3m4skfc3cc0i519z39b23n997vj5mwcjplxyc76";
+  };
+
+  buildInputs = [
+    qt4 openssl xorgproto libX11 libXScrnSaver xz zlib
+  ];
+
+  # hack: needed to fix build issues in
+  # https://hydra.nixos.org/build/38322959/nixlog/1
+  # should be an upstream issue but it's easy to fix
+  NIX_LDFLAGS = "-lz";
+
+  nativeBuildInputs = [ qmake4Hook ];
+
+  preConfigure = ''
+    qmakeFlags="$qmakeFlags INSTALL_PREFIX=$out"
+  '';
+
+  hardeningDisable = [ "format" ];
+
+  meta = with lib; {
+    description = "An XMPP client fully composed of plugins";
+    maintainers = [ maintainers.raskin ];
+    platforms = platforms.linux;
+    license = licenses.gpl3;
+    homepage = "http://www.vacuum-im.org";
+  };
+}