view tests/test-sethostname1.c @ 17682:68b0a0f80871

pthread_sigmask, timer-time: use gl_THREADLIB only if needed Without this fix, Emacs would sometimes call sigprocmask instead of pthread_sigmask, which is a no-no in multithreaded applications. Problem reported by Jorgen Schaefer in <http://bugs.gnu.org/17561>. * m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): Suppress check for pthread_sigmask working without -lpthread if the application always links with -lpthread. Do not link with $LIBMULTITHREAD if gl_THREADLIB is not defined. * m4/timer_time.m4 (gl_TIMER_TIME): Require gl_THREADLIB only if it is defined. Do not append $LIBMULTITHREAD to LIB_TIMER_TIME if gl_THREADLIB is not defined.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 28 May 2014 21:04:04 -0700
parents 344018b6e5d7
children ab58d4870664
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/*
 * Copyright (C) 2011-2014 Free Software Foundation, Inc.
 * Written by Ben Walton.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

#include <unistd.h>

#include "signature.h"
SIGNATURE_CHECK (sethostname, int, (const char *, size_t));

int do_dangerous_things;

int
main ()
{
  /* Some code that has a link-time dependency to the sethostname() function
     and that is likely not optimized away by compilers.  */
  if (do_dangerous_things)
    /* Never executed.  */
    sethostname ("oprah", 5);

  return 0;
}