AC_DEFUN([DOVECOT_WANT_CASSANDRA], [

if test $want_cassandra != no; then

AC_CHECK_LIB(cassandra, cass_session_new, [

AC_CHECK_HEADER(cassandra.h, [

CASSANDRA_LIBS="$CASSANDRA_LIBS -lcassandra"

AC_DEFINE(HAVE_CASSANDRA,, [Build with Cassandra support])

found_sql_drivers="$found_sql_drivers cassandra"

AC_CHECK_LIB(cassandra, cass_cluster_set_constant_speculative_execution_policy, [

AC_DEFINE(HAVE_CASSANDRA_SPECULATIVE_POLICY, 1, [Cassandra supports speculative execution policy])

])

], [

if test $want_cassandra = yes; then

AC_ERROR([Can't build with Cassandra support: cassandra.h not found])

fi

])

], [

if test $want_cassandra = yes; then

AC_ERROR([Can't build with Cassandra support: libcassandra not found])

fi

])

fi

])