AS_IF([test "x$ac_cv_msg_nosignal" = "xyes"],[
AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Define to 1 if you have a MSG_NOSIGNAL])])
AS_IF([test "x$ac_cv_msg_dontwait" = "xyes"],[
AC_DEFINE(HAVE_MSG_DONTWAIT, 1, [Define to 1 if you have a MSG_DONTWAIT])])
AS_IF([test "x$ac_cv_msg_nosignal" = "xyes"],[
AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Define to 1 if you have a MSG_NOSIGNAL])])
AS_IF([test "x$ac_cv_msg_dontwait" = "xyes"],[
AC_DEFINE(HAVE_MSG_DONTWAIT, 1, [Define to 1 if you have a MSG_DONTWAIT])])