AC_DEFUN([RTEMS_ENABLE_MULTIPROCESSING],
[
AC_ARG_ENABLE(multiprocessing,
[AS_HELP_STRING([--enable-multiprocessing],
[enable multiprocessing interface; the multiprocessing interface is a
communication interface between different RTEMS instances and allows
synchronization of objects via message passing])],
[case "${enable_multiprocessing}" in
  yes) test -z $enable_rtemsbsp && AC_MSG_ERROR([Multiprocessing requires BSPs to be provided, none have, see --enable-rtemsbsp])
       ;;
  no) ;;
  *)  AC_MSG_ERROR(bad value ${enableval} for enable-multiprocessing option) ;;
esac],[enable_multiprocessing=no])
])