anchor.diff:  
     nix-exec = callPackage ../development/interpreters/nix-exec {
       nix = nixUnstable;
  -    git = git.override {
  -      withManual = false;
  -      pythonSupport = false;
  -    };
  +    git = gitMinimal;
     };
   
     octave = callPackage ../development/interpreters/octave {
  
positive.code:   };
  
    fetchgit = import ../build-support/fetchgit {
      inherit stdenv git cacert;
    };
  
    fetchgitPrivate = import ../build-support/fetchgit/private.nix {
  
negative.code:   });
    git = gitAndTools.git;
    gitFull = gitAndTools.gitFull;
    gitMinimal = git.override {
      withManual = false;
      pythonSupport = false;
    };
    gitSVN = gitAndTools.gitSVN;
  
    gitRepo = callPackage ../applications/version-management/git-repo {
  