Mercurial > gnulib
view m4/lock.m4 @ 12559:c2cbabec01dd
update nearly all FSF copyright year lists to include 2010
Use the same procedure as for 2009, outlined in
http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/20081
author | Jim Meyering <meyering@redhat.com> |
---|---|
date | Fri, 01 Jan 2010 10:31:12 +0100 |
parents | f6cba5a556ce |
children | d53740f6f336 |
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# lock.m4 serial 10 (gettext-0.18) dnl Copyright (C) 2005-2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_DEFUN([gl_LOCK], [ AC_REQUIRE([gl_THREADLIB]) if test "$gl_threads_api" = posix; then # OSF/1 4.0 and MacOS X 10.1 lack the pthread_rwlock_t type and the # pthread_rwlock_* functions. AC_CHECK_TYPE([pthread_rwlock_t], [AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], [Define if the POSIX multithreading library has read/write locks.])], [], [#include <pthread.h>]) # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. AC_TRY_COMPILE([#include <pthread.h>], [#if __FreeBSD__ == 4 error "No, in FreeBSD 4.0 recursive mutexes actually don't work." #else int x = (int)PTHREAD_MUTEX_RECURSIVE; return !x; #endif], [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])]) fi gl_PREREQ_LOCK ]) # Prerequisites of lib/lock.c. AC_DEFUN([gl_PREREQ_LOCK], [ AC_REQUIRE([AC_C_INLINE]) ])