X(INT, NONE, ssh_connection_sharing) \
X(INT, NONE, ssh_connection_sharing_upstream) \
X(INT, NONE, ssh_connection_sharing_downstream) \
+ /*
+ * ssh_manual_hostkeys is conceptually a set rather than a
+ * dictionary: the string subkeys are the important thing, and the
+ * actual values to which those subkeys map are all "".
+ */ \
+ X(STR, STR, ssh_manual_hostkeys) \
/* Options for pterm. Should split out into platform-dependent part. */ \
X(INT, NONE, stamp_utmp) \
X(INT, NONE, login_shell) \