treewide: use scons setup hook

Lots of packages can use it. Here is the list:

- jackmix
- klick
- mixx
- nova-filters
- rhvoice
- giv
- mypaint
- swift-im
- bombono
- mapnik
- serf
- nuitka
- pyexiv2
- godot
- hammer
- toluapp
- btanks
- dxx-rebirth
- endless-sky
- globulation
- the-powder-toy
- fceux
- gpsd
- mongodb
- rippled
- mariadb
- lprof

pkgs/games/globulation/default.nix

@@ -32,19 +32,15 @@ stdenv.mkDerivation rec {
     sed -i -e "s@env = Environment()@env = Environment( ENV = os.environ )@" SConstruct
   '';
 
-  buildInputs = [ libGLU_combined SDL scons SDL_ttf SDL_image zlib SDL_net speex libvorbis libogg boost fribidi bsdiff ];
+  nativeBuildInputs = [ scons ];
+  buildInputs = [ libGLU_combined SDL SDL_ttf SDL_image zlib SDL_net speex libvorbis libogg boost fribidi bsdiff ];
 
-  buildPhase = ''
-    scons
+  postConfigure = ''
+    sconsFlags+=" BINDIR=$out/bin"
+    sconsFlags+=" INSTALLDIR=$out/share/globulation2"
+    sconsFlags+=" DATADIR=$out/share/globulation2/glob2"
   '';
 
-  installPhase = ''
-    scons install \
-      BINDIR=$out/bin \
-      INSTALLDIR=$out/share/globulation2 \
-      DATADIR=$out/share/globulation2/glob2
-  '';
-      
   meta = with stdenv.lib; {
     description = "RTS without micromanagement";
     maintainers = with maintainers; [ raskin ];
@@ -53,4 +49,3 @@ stdenv.mkDerivation rec {
   };
   passthru.updateInfo.downloadPage = "http://globulation2.org/wiki/Download_and_Install";
 }
-