* src/gpgme.h.in (_gpgme_subkey): New flag is_de_vs.
* tests/run-keylist.c (main): Print that flag.
* src/keylist.c (parse_pub_field18): New.
(keylist_colon_handler): Parse compliance flags.
* lang/cpp/src/key.cpp (Key::isDeVs): New.
(Subkey::isDeVs): New.
* lang/cpp/src/key.h (class Key): New method isDeVs.
(class Subkey): New method isDeVs.