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-rw-r--r--gl/m4/lock.m411
1 files changed, 8 insertions, 3 deletions
diff --git a/gl/m4/lock.m4 b/gl/m4/lock.m4
index aae1701..88cf557 100644
--- a/gl/m4/lock.m4
+++ b/gl/m4/lock.m4
@@ -1,5 +1,5 @@
1# lock.m4 serial 13 (gettext-0.18.2) 1# lock.m4 serial 14
2dnl Copyright (C) 2005-2013 Free Software Foundation, Inc. 2dnl Copyright (C) 2005-2023 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation 3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it, 4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved. 5dnl with or without modifications, as long as this notice is preserved.
@@ -12,11 +12,16 @@ AC_DEFUN([gl_LOCK],
12 if test "$gl_threads_api" = posix; then 12 if test "$gl_threads_api" = posix; then
13 # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the 13 # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the
14 # pthread_rwlock_* functions. 14 # pthread_rwlock_* functions.
15 has_rwlock=false
15 AC_CHECK_TYPE([pthread_rwlock_t], 16 AC_CHECK_TYPE([pthread_rwlock_t],
16 [AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], 17 [has_rwlock=true
18 AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1],
17 [Define if the POSIX multithreading library has read/write locks.])], 19 [Define if the POSIX multithreading library has read/write locks.])],
18 [], 20 [],
19 [#include <pthread.h>]) 21 [#include <pthread.h>])
22 if $has_rwlock; then
23 gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER
24 fi
20 # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. 25 # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro.
21 AC_COMPILE_IFELSE([ 26 AC_COMPILE_IFELSE([
22 AC_LANG_PROGRAM( 27 AC_LANG_PROGRAM(