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Edit File: socket_send_flags.m4

# Copyright (C) 2012-2013 Data Differential LLC
# Copyright (C) 2011 Trond Norbye
# This file is free software; Trond Norbye and Data Differential
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# ---------------------------------------------------------------------------
# Macro: SOCKET_SEND_FLAGS
# ---------------------------------------------------------------------------
#

#serial 2

AC_DEFUN([SOCKET_SEND_FLAGS],
    [AC_CACHE_CHECK([for MSG_NOSIGNAL],[ac_cv_msg_nosignal],
      [AC_LANG_PUSH([C])
      AX_SAVE_FLAGS
      CFLAGS="$CFLAGS -I${srcdir}"

AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <netdb.h>], [int flags= MSG_NOSIGNAL])], [ac_cv_msg_nosignal="yes"])
      AC_LANG_POP
      AX_RESTORE_FLAGS])

AC_CACHE_CHECK([for MSG_DONTWAIT],[ac_cv_msg_dontwait],
      [AC_LANG_PUSH([C])
      AX_SAVE_FLAGS
      CFLAGS="$CFLAGS -I${srcdir}"

AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <netdb.h>],[int flags= MSG_DONTWAIT])],[ac_cv_msg_dontwait="yes"])
      AC_LANG_POP
      AX_RESTORE_FLAGS])

AC_CACHE_CHECK([for MSG_MORE],[ac_cv_msg_more],
      [AC_LANG_PUSH([C])
      AX_SAVE_FLAGS
      CFLAGS="$CFLAGS -I${srcdir}"
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <netdb.h>], [int flags= MSG_MORE])], [ac_cv_msg_more="yes"])
      AC_LANG_POP
      AX_RESTORE_FLAGS])

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_more" = "xyes"],[AC_DEFINE([HAVE_MSG_MORE],[1],[Define to 1 if you have a MSG_MORE])])
  ])

# ---------------------------------------------------------------------------
# End Macro: SOCKET_SEND_FLAGS
# ---------------------------------------------------------------------------