treewide: use wafHook

Replace "waf" phases with wafHook that manages everything
automatically. Should make things more modular.

Packages affected here are:

- a2jmidid
- ams-lv2
- ardour
- fomp
- guitarix
- ingen
- jalv
- mda-lv2
- non
- patchage
- hamster-time-tracker
- kupfer
- xiphos
- xfce4-dockbarx-plugin
- xfce4-namebar-plugin
- dropbox
- clasp
- aubio
- liliv
- lv2
- lvtk
- ntk
- raul
- sratom
- suil
- ganv
- ndn-cxx
- ns3
- serd
- sord
- termbox
- wxmupen64plus
- jackaudio
- pflask
- blockhash
- glmark2
- weighttp

pkgs/desktops/xfce/thunar-plugins/dropbox/default.nix

@@ -1,6 +1,7 @@
 { stdenv, fetchurl, pkgconfig
 , gtk
 , thunar-bare, python2, hicolor-icon-theme
+, wafHook
 }:
 
 stdenv.mkDerivation rec {
@@ -14,20 +15,12 @@ stdenv.mkDerivation rec {
     sha256 = "08vhzzzwshyz371yl7fzfylmhvchhv3s5kml3dva4v39jhvrpnkf";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkgconfig wafHook ];
   buildInputs = [
     gtk
     thunar-bare python2 hicolor-icon-theme
   ];
 
-  configurePhase = "python2 waf configure --prefix=$out";
-
-  buildPhase = "python2 waf";
-
-  installPhase = ''
-    python2 waf install
-  '';
-
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {