AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <netdb.h>], [ int flags= MSG_NOSIGNAL ])], [ac_cv_msg_nosignal="yes"])
AC_LANG_POP
+ CFLAGS="$save_CFLAGS"
])
AC_CACHE_CHECK([for MSG_DONTWAIT], [ac_cv_msg_dontwait], [
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <netdb.h>], [ int flags= MSG_DONTWAIT ])], [ac_cv_msg_dontwait="yes"])
AC_LANG_POP
+ CFLAGS="$save_CFLAGS"
])
AC_CACHE_CHECK([for MSG_MORE], [ac_cv_msg_more], [
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <netdb.h>], [ int flags= MSG_MORE ])], [ac_cv_msg_more="yes"])
AC_LANG_POP
+ CFLAGS="$save_CFLAGS"
])
AS_IF([test "x$ac_cv_msg_nosignal" = "xyes"],[ AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Define to 1 if you have a MSG_NOSIGNAL])])