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AC_DEFUN([DOVECOT_NOTIFY], [
have_notify=none
AS_IF([test "$notify" = "" || test "$notify" = "inotify"], [
dnl * inotify?
AC_MSG_CHECKING([whether we can use inotify])
AS_IF([test "$ac_cv_func_inotify_init" = yes], [
have_notify=inotify
notify=inotify
AC_MSG_RESULT("yes")
AC_DEFINE(IOLOOP_NOTIFY_INOTIFY,, [Use Linux inotify])
], [
AC_MSG_RESULT("no")
AS_IF([test "$notify" = "inotify"], [
AC_MSG_ERROR([inotify requested but not available])
notify=""
])
])
])
AS_IF([(test "$notify" = "" && test "$ioloop" = kqueue) || test "$notify" = "kqueue"], [
dnl * BSD kqueue() notify
AC_MSG_CHECKING([whether we can use BSD kqueue() notify])
AS_IF([test "$ac_cv_func_kqueue" = yes && test "$ac_cv_func_kevent" = yes], [
have_notify=kqueue
notify=kqueue
AC_MSG_RESULT("yes")
AC_DEFINE(IOLOOP_NOTIFY_KQUEUE,, [Use BSD kqueue directory changes notification])
], [
AC_MSG_RESULT("no")
AS_IF([test "$notify" = "kqueue"], [
AC_MSG_ERROR([kqueue notify requested but kqueue() is not available])
notify=""
])
])
])
AS_IF([test "$have_notify" = "none"], [
AC_DEFINE(IOLOOP_NOTIFY_NONE,, [No special notify support])
])
])
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