Issue #10062: Allow building on platforms which do not have sem_timedwait.

pitrou · pitrou · commit 19f8edc39d34 · 2010-10-10T08:37:22.000Z
diff --git a/Misc/NEWS b/Misc/NEWS
@@ -346,6 +346,8 @@ Tests
 Build
 -----
 
+- Issue #10062: Allow building on platforms which do not have sem_timedwait.
+
 - Issue #10054: Some platforms provide uintptr_t in inttypes.h.  Patch by
   Akira Kitada.
 
diff --git a/Python/thread_pthread.h b/Python/thread_pthread.h
@@ -64,7 +64,8 @@
 /* Whether or not to use semaphores directly rather than emulating them with
  * mutexes and condition variables:
  */
-#if defined(_POSIX_SEMAPHORES) && !defined(HAVE_BROKEN_POSIX_SEMAPHORES)
+#if (defined(_POSIX_SEMAPHORES) && !defined(HAVE_BROKEN_POSIX_SEMAPHORES) && \
+     defined(HAVE_SEM_TIMEDWAIT))
 #  define USE_SEMAPHORES
 #else
 #  undef USE_SEMAPHORES
