lock.m4		lock.m4
	# lock.m4 serial 10 (gettext-0.18)		# lock.m4 serial 13 (gettext-0.18.2)
	dnl Copyright (C) 2005-2010 Free Software Foundation, Inc.		dnl Copyright (C) 2005-2014 Free Software Foundation, Inc.
	dnl This file is free software; the Free Software Foundation		dnl This file is free software; the Free Software Foundation
	dnl gives unlimited permission to copy and/or distribute it,		dnl gives unlimited permission to copy and/or distribute it,
	dnl with or without modifications, as long as this notice is preserved.		dnl with or without modifications, as long as this notice is preserved.
	dnl From Bruno Haible.		dnl From Bruno Haible.
	AC_DEFUN([gl_LOCK],		AC_DEFUN([gl_LOCK],
	[		[
	AC_REQUIRE([gl_THREADLIB])		AC_REQUIRE([gl_THREADLIB])
	if test "$gl_threads_api" = posix; then		if test "$gl_threads_api" = posix; then
	# OSF/1 4.0 and MacOS X 10.1 lack the pthread_rwlock_t type and the		# OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the
	# pthread_rwlock_* functions.		# pthread_rwlock_* functions.
	AC_CHECK_TYPE([pthread_rwlock_t],		AC_CHECK_TYPE([pthread_rwlock_t],
	[AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1],		[AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1],
	[Define if the POSIX multithreading library has read/write locks.] )],		[Define if the POSIX multithreading library has read/write locks.] )],
	[],		[],
	[#include <pthread.h>])		[#include <pthread.h>])
	# glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro.		# glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro.
	AC_TRY_COMPILE([#include <pthread.h>],		AC_COMPILE_IFELSE([
	[#if __FreeBSD__ == 4		AC_LANG_PROGRAM(
			[[#include <pthread.h>]],
			[[
			#if __FreeBSD__ == 4
	error "No, in FreeBSD 4.0 recursive mutexes actually don't work."		error "No, in FreeBSD 4.0 recursive mutexes actually don't work."
			#elif (defined __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ \
			&& __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070)
			error "No, in Mac OS X < 10.7 recursive mutexes actually don't work."
	#else		#else
	int x = (int)PTHREAD_MUTEX_RECURSIVE;		int x = (int)PTHREAD_MUTEX_RECURSIVE;
	return !x;		return !x;
	#endif],		#endif
			]])],
	[AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1],		[AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1],
	[Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])])		[Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])])
	fi		fi
	gl_PREREQ_LOCK		gl_PREREQ_LOCK
	])		])
	# Prerequisites of lib/lock.c.		# Prerequisites of lib/glthread/lock.c.
	AC_DEFUN([gl_PREREQ_LOCK], [		AC_DEFUN([gl_PREREQ_LOCK], [:])
	AC_REQUIRE([AC_C_INLINE])
	])
End of changes. 6 change blocks.
	6 lines changed or deleted		13 lines changed or added
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