anchor.diff:        declare -A seen
         shopt -s globstar
         for f in "$out/"**; do
  +        if [ -L "$f" ]; then continue; fi
           test -f "$f" || continue
           sum=$(md5sum "$f");
           sum=''\${sum/ */}
  
positive.code:         chmod +x $1
        }
  
        # Install Emacs mode.
        echo "installing Emacs mode..."
        ensureDir $out/share/emacs/site-lisp
        cp -p contrib/emacs/*.el $out/share/emacs/site-lisp
  
        # grep is a runtime dependence, need to patch so that it's found
        substituteInPlace $out/libexec/git-core/git-sh-setup \
            --replace ' grep' ' ${gnugrep}/bin/grep' \
            --replace ' egrep' ' ${gnugrep}/bin/egrep'
      '' # */
  
     + (if svnSupport then
  
  
negative.code:        done
       '')
  
     # Don't know why hardlinks aren't created. git installs the same executable
     # multiple times into $out so replace duplicates by symlinks because I
     # haven't tested whether the nix distribution system can handle hardlinks.
  