Commit 9297ca49 authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

configure: detect the broken poll() in macOS 10.12 

Fixes #1057
parent 358fd328

m4/curl-functions.m4

+19 −3
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@ 
#                            | (__| |_| |  _ <| |___

#                             \___|\___/|_| \_\_____|

#

# Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.

# Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.

#

# This software is licensed as described in the file COPYING, which

# you should have received as part of this distribution. The terms
@@ -4803,11 +4803,27 @@ AC_DEFUN([CURL_CHECK_FUNC_POLL], [ 
      AC_LANG_PROGRAM([[

        $curl_includes_stdlib

        $curl_includes_poll

        $curl_includes_time

      ]],[[

        /* detect the original poll() breakage */

        if(0 != poll(0, 0, 10))

          exit(1); /* fail */

        else

          exit(0);

        else {

          /* detect the 10.12 poll() breakage */

          struct timeval before, after;

          int rc;

          size_t us;



          gettimeofday(&before, NULL);

          rc = poll(NULL, 0, 500);

          gettimeofday(&after, NULL);



          us = (after.tv_sec - before.tv_sec) * 1000000 +

            (after.tv_usec - before.tv_usec);



          if(us < 400000)

            exit(1);

        }

      ]])

    ],[

      AC_MSG_RESULT([yes])