I wrote:
> On Cygwin 3.5.3, programs that use pthread_once or call_once may hang
> indefinitely.
This is visible also in a testdir for module 'file-has-acl': test-lock
hangs (and fails through timeout). This patch fixes it.
2024-05-29 Bruno Haible <br...@clisp.org>
lock: Work around Cygwin 3.5.3 bug.
* modules/lock (Depends-on): Add pthread-once.
diff --git a/modules/lock b/modules/lock
index c9d60d695c..2452524987 100644
--- a/modules/lock
+++ b/modules/lock
@@ -10,6 +10,7 @@ m4/pthread_rwlock_rdlock.m4
Depends-on:
extensions
threadlib
+pthread-once [test $gl_threads_api = posix]
windows-mutex [test $gl_threads_api = windows]
windows-rwlock [test $gl_threads_api = windows]
windows-recmutex [test $gl_threads_api = windows]
