AC_DEFUN([DOVECOT_WANT_SIA], [

have_sia=no

if test $want_sia != no; then

AC_CHECK_FUNC(sia_validate_user, [

AC_DEFINE(PASSDB_SIA,, [Build with Tru64 SIA support])

AUTH_LIBS="$AUTH_LIBS -depth_ring_search"

have_sia=yes

], [

if test $want_sia = yes; then

AC_ERROR([Can't build with SIA support: sia_validate_user() not found])

fi

])

fi

if test $have_sia = no; then

not_passdb="$not_passdb sia"

else

passdb="$passdb sia"

fi

])