anchor.diff:    };
   
     # perl is used for testing go vet
  -  nativeBuildInputs = [ perl which pkgconfig patch ];
  +  nativeBuildInputs = [ perl which pkgconfig patch makeWrapper ];
     buildInputs = [ pcre ]
       ++ optionals stdenv.isLinux [ stdenv.glibc.out stdenv.glibc.static ];
     propagatedBuildInputs = optionals stdenv.isDarwin [ Security Foundation ];
  
positive.code:   installPhase = ''
      cp -r . $GOROOT
      ( cd $GOROOT/src && ./all.bash )
    '';
  
    preFixup = ''
  
negative.code: { stdenv, fetchFromGitHub, tzdata, iana-etc, go_bootstrap, runCommand, writeScriptBin
  , perl, which, pkgconfig, patch, fetchpatch
  , pcre, cacert, llvm
  , Security, Foundation, bash
  , makeWrapper, git, subversion, mercurial, bazaar }:
  
  let
  
  