anchor.diff:      mkdir -p $out/share
       cd $out/share
     '';
  -  postUnpack = ''
  -    mkdir -p $out/share/go/src/golang.org/x
  -    cp -rv --no-preserve=mode,ownership ${srcs.tools} $out/share/go/src/golang.org/x/tools
  -  '';
   
     prePatch = ''
       # Ensure that the source directory is named go
  
positive.code: in
  
  stdenv.mkDerivation {
    name = "go-1.4";
  
    src = srcs.golang;
  
  
negative.code:   loaderArm = "${glibc}/lib/ld-linux.so.3";
    srcs = {
      golang = fetchurl {
        url = https://github.com/golang/go/archive/go1.4.1.tar.gz;
        sha256 = "1q21i08nymy30vszbcah8l8yjxm32x2wmjs44kn2x2r4556y1mgi";
      };
      tools = fetchgit {
        url = https://github.com/golang/tools.git;
  