git.m6w6.name Git - awesomized/libmemcached/blob - m4/socket_send_flags.m4

   1 dnl  Copyright (C) 2011 Trond Norbye
   2 dnl This file is free software; Trond Norbye
   3 dnl gives unlimited permission to copy and/or distribute it,
   4 dnl with or without modifications, as long as this notice is preserved.
   5 dnl ---------------------------------------------------------------------------
   6 dnl Macro: SOCKET_SEND_FLAGS
   7 dnl ---------------------------------------------------------------------------
   8
   9 AC_DEFUN([SOCKET_SEND_FLAGS],
  10 [
  11   AC_CACHE_CHECK([for MSG_NOSIGNAL], [ac_cv_msg_nosignal], [
  12     AC_LANG_PUSH([C])
  13     save_CFLAGS="$CFLAGS"
  14     CFLAGS="$CFLAGS -I${srcdir}"
  15     AC_TRY_LINK([
  16 #include <sys/socket.h>
  17                    ], [
  18 int flags= MSG_NOSIGNAL;
  19                    ],
  20                    [ ac_cv_msg_nosignal=yes ],
  21                    [ ac_cv_msg_nosignal=no ])
  22    CFLAGS="$save_CFLAGS"
  23    AC_LANG_POP
  24   ])
  25
  26   AC_CACHE_CHECK([for MSG_DONTWAIT], [ac_cv_msg_dontwait], [
  27     AC_LANG_PUSH([C])
  28     save_CFLAGS="$CFLAGS"
  29     CFLAGS="$CFLAGS -I${srcdir}"
  30     AC_TRY_LINK([
  31 #include <sys/socket.h>
  32                    ], [
  33 int flags= MSG_DONTWAIT;
  34                    ],
  35                    [ ac_cv_msg_dontwait=yes ],
  36                    [ ac_cv_msg_dontwait=no ])
  37    CFLAGS="$save_CFLAGS"
  38    AC_LANG_POP
  39   ])
  40
  41   AS_IF([test "x$ac_cv_msg_nosignal" = "xyes"],[
  42         AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Define to 1 if you have a MSG_NOSIGNAL])])
  43   AS_IF([test "x$ac_cv_msg_dontwait" = "xyes"],[
  44         AC_DEFINE(HAVE_MSG_DONTWAIT, 1, [Define to 1 if you have a MSG_DONTWAIT])])
  45 ])
  46
  47 dnl ---------------------------------------------------------------------------
  48 dnl End Macro: SOCKET_SEND_FLAGS
  49 dnl ---------------------------------------------------------------------------