git.m6w6.name Git - m6w6/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   AC_CACHE_CHECK([for MSG_MORE], [ac_cv_msg_more], [
  42     AC_LANG_PUSH([C])
  43     save_CFLAGS="$CFLAGS"
  44     CFLAGS="$CFLAGS -I${srcdir}"
  45     AC_TRY_LINK([
  46 #include <sys/socket.h>
  47                    ], [
  48 int flags= MSG_MORE;
  49                    ],
  50                    [ ac_cv_msg_more=yes ],
  51                    [ ac_cv_msg_more=no ])
  52    CFLAGS="$save_CFLAGS"
  53    AC_LANG_POP
  54   ])
  55
  56   AS_IF([test "x$ac_cv_msg_nosignal" = "xyes"],[
  57         AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Define to 1 if you have a MSG_NOSIGNAL])])
  58   AS_IF([test "x$ac_cv_msg_dontwait" = "xyes"],[
  59         AC_DEFINE(HAVE_MSG_DONTWAIT, 1, [Define to 1 if you have a MSG_DONTWAIT])])
  60   AS_IF([test "x$ac_cv_msg_more" = "xyes"],[
  61         AC_DEFINE(HAVE_MSG_MORE, 1, [Define to 1 if you have a HAVE_MSG_MORE])])
  62 ])
  63
  64 dnl ---------------------------------------------------------------------------
  65 dnl End Macro: SOCKET_SEND_FLAGS
  66 dnl ---------------------------------------------------------------------------