* agent/gpg-agent.c (have_homedir_inotify): New var.
(reliable_homedir_inotify): New var.
(main): Set reliable_homedir_inotify.
(handle_tick): Call stat on the homedir.
(handle_connections): Mark availibility of the inotify watch.
* dirmngr/dirmngr.c (handle_tick): Call stat on the homedir.
(TIMERTICK_INTERVAL_SHUTDOWN): New.
(handle_connections): Depend tick interval on the shutdown state.
--
The stat call is used on systems which do not support inotify and also
when we assume that the inotify does not work reliable.
Signed-off-by: Werner Koch <wk@gnupg.org>