Define _XOPEN_SOURCE only for IRIX.
Define _XOPEN_SOURCE only for IRIX.

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,Distrotech/dovecot,LTD-Beget/dovecot,damoxc/dovecot,Distrotech/dovecot,damoxc/dovecot,Distrotech/dovecot,Distrotech/dovecot,damoxc/dovecot,damoxc/dovecot,Distrotech/dovecot,damoxc/dovecot,LTD-Beget/dovecot