anchor.diff:      else null;
   
     passthru =
  -    { inherit langC langCC langAda langFortran langVhdl langGo enableMultilib version; };
  +    { inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo enableMultilib version; };
   
     inherit enableParallelBuilding;
   
  
positive.code: { stdenv, fetchurl, noSysDirs
  , langC ? true, langCC ? true, langFortran ? false
  , langJava ? false
  , langAda ? false
  , langVhdl ? false
  
negative.code:         ++ optional langAda      "ada"
          ++ optional langVhdl     "vhdl"
          ++ optional langGo       "go"
          ++ optional langObjC     "objc"
          ++ optional langObjCpp   "obj-c++"
          ++ optionals crossDarwin [ "objc" "obj-c++" ]
          )
        )
  