anchor.diff:      inherit fetchurl stdenv;
     };
   
  +  msfFun = builderDefsPackage (selectVersion ../tools/security/metasploit "3.1") {
  +    inherit ruby makeWrapper;
  +  };
  +  msf = msfFun null;
  +
     mssys = import ../tools/misc/mssys {
       inherit fetchurl stdenv gettext;
     };
  
positive.code:     inherit fetchurl stdenv python makeWrapper;
    };
  
    monodevelop = import ../applications/editors/monodevelop {
      inherit fetchurl stdenv file mono gtksourceviewsharp
              gtkmozembedsharp monodoc perl perlXMLParser pkgconfig;
  
negative.code:     version = "0.6.2";
    };
  
    compizFun = lib.sumArgs (assert mesaSupported; selectVersion ../applications/window-managers/compiz "0.7.4") {
      inherit lib builderDefs stringsWithDeps;
      inherit fetchurl stdenv pkgconfig libpng mesa perl perlXMLParser libxslt;
      inherit (xorg) libXcomposite libXfixes libXdamage libXrandr
        libXinerama libICE libSM libXrender xextproto compositeproto fixesproto
        damageproto randrproto xineramaproto renderproto kbproto xproto libX11 
        libxcb;
      inherit (gnome) startupnotification libwnck GConf;
      inherit (gtkLibs) gtk;
      inherit (gnome) libgnome libgnomeui metacity
  