texlive.combine: expose licensing information of combined packages

  pkgList = rec {

    combined = combinePkgs (lib.attrValues pkgSet);

    all = lib.filter pkgFilter combined;

    licenses = let

        concatLicenses = lib.foldl (acc: el: if builtins.elem el acc then acc else acc ++ [ el ]);

      in lib.foldl

        (acc: pkg:

          concatLicenses acc (lib.toList (pkg.meta.license or [])))

        [] all;

    splitBin = builtins.partition (p: p.tlType == "bin") all;

    bin = splitBin.right

      ++ lib.optional

in (buildEnv {

  inherit name;

  meta.license = pkgList.licenses;

  ignoreCollisions = false;