anchor.diff:    src = fetchgit {
       url = "https://review.coreboot.org/coreboot";
       rev = version;
  -    sha256 = "0y137dhfi0zf9nmyq49ksrad69yspbnsmzc4wjkw3hjwvzgi8j27";
  +    sha256 = "1qsb2ca22h5f0iwc254qsfm7qcn8967ir8aybdxa1pakgmnfsyp9";
       fetchSubmodules = false;
  +    leaveDotGit = true;
  +    postFetch = ''
  +      patchShebangs $out/util/crossgcc/buildgcc
  +      PATH=${lib.makeBinPath [ getopt ]}:$PATH $out/util/crossgcc/buildgcc -W > $out/.crossgcc_version
  +      rm -rf $out/.git
  +    '';
     };
   
     nativeBuildInputs = [ bison curl git perl ];
  
positive.code: , curl
  , fetchgit
  , flex
  , git
  , gnat11
  , lib
  
negative.code:       ) (callPackage ./stable.nix { })
      }
  
      patchShebangs util/genbuild_h/genbuild_h.sh
    '';
  
    buildPhase = ''
      export CROSSGCC_VERSION=$(cat .crossgcc_version)
      make crossgcc-i386 CPUS=$NIX_BUILD_CORES DEST=$out
    '';
  
  