proper support for "isabelle update -D DIR": avoid accidental exclusion of select_dirs (amending e5dafe9e120f);
(* :mode=isabelle-options: *)
section "Admin tools"
option isabelle_components_server : string = "lxbroy10.informatik.tu-muenchen.de"
-- "user@host for SSH connection"
option isabelle_components_dir : string = "/p/home/isabelle/components"
-- "webspace for ISABELLE_COMPONENT_REPOSITORY"
option isabelle_components_contrib_dir : string = "/p/home/isabelle/contrib"
-- "unpacked components for remote build services"
option build_host_linux_arm : string = "" for build connection
-- "SSH user@host for remote build of heaps"
option build_host_linux : string = "" for build connection
-- "SSH user@host for remote build of heaps"
option build_host_macos : string = "" for build connection
-- "SSH user@host for remote build of heaps"
option build_host_windows : string = "" for build connection
-- "SSH user@host for remote build of heaps"