* sm/gpgsm.c (oCompatibilityFlags): New option.
(compatibility_flags): new.
(main): Parse and print them in verbose mode.
* sm/gpgsm.h (opt): Add field compat_glags.:
(COMPAT_ALLOW_KA_TO_ENCR): New.
* sm/keylist.c (print_capabilities): Take care of the new flag.
* sm/certlist.c (cert_usage_p): Ditto.
* common/miscellaneous.c (parse_compatibility_flags): New.
* common/util.h (struct compatibility_flags_s): New.
--
Backported-from-master: f0b373cec93bb01f02b9c0a3ab1f3e242b381c3f
Backported-from-master: ce63eaa4f8f3f41aafcaddd8d658dacd522334a8