nixpkgs/system/fontdir.nix

args : with args; with builderDefs;
  let localDefs = builderDefs.passthru.function rec {
    src = "";/* put a fetchurl here */

    buildInputs = [mkfontdir mkfontscale ttmkfdir];
    configureFlags = [];
    fontDirs = import ./fonts.nix {inherit pkgs config;};
    installPhase = FullDepEntry ("
    list='';
    for i in ${toString fontDirs} ; do
      if [ -d \$i/ ]; then
        list=\"\$list \$i\";
      fi;
    done
    list=\$(find \$list -name fonts.dir);
    fontDirs='';
    for i in \$list ; do
      fontDirs=\"\$fontDirs \$(dirname \$i)\";
    done;
    mkdir -p \$out/share/X11-fonts/; 
    for i in \$(find \$fontDirs -type f -o -type l); do
      j=\${i##*/}
      if ! test -e \$out/share/X11-fonts/\${j}; then
        ln -s \$i \$out/share/X11-fonts/\${j};
      fi;
    done;
    cd \$out/share/X11-fonts/
    rm fonts.dir
    rm fonts.scale
    rm fonts.alias
    mkfontdir
    mkfontscale
    mv fonts.scale fonts.scale.old
    mv fonts.dir fonts.dir.old
    ttmkfdir
    cat fonts.scale.old >> fonts.scale
    cat fonts.dir.old >> fonts.dir
    rm fonts.dir.old
    rm fonts.scale.old
    cat \$( find ${fontalias}/ -name fonts.alias) >fonts.alias
  ") ["minInit" "addInputs"];
  };
  in with localDefs;
stdenv.mkDerivation rec {
  name = "X11-fonts";
  builder = writeScript (name + "-builder")
    (textClosure localDefs 
      [installPhase doForceShare doPropagate]);
  meta = {
    description = "
    Directory to contain all X11 fonts requested.
";
  };
}