This is an example installation procedure:

  OCAMLFIND_DESTDIR="$PKG/usr/lib${LIBDIRSUFFIX}/ocaml"
  mkdir -p "$OCAMLFIND_DESTDIR"
  ocaml setup.ml -configure --destdir $OCAMLFIND_DESTDIR
  make build
  mkdir -p $PKG/stublibs
  OCAMLFIND_DESTDIR="$OCAMLFIND_DESTDIR" make install
