From a9c0a5b31cccd1b15c6cf95ae3a20c0c6cc77fed Mon Sep 17 00:00:00 2001
From: Sam Gross <colesbury@gmail.com>
Date: Tue, 19 Sep 2023 13:04:19 -0400
Subject: [PATCH] gh-108724: Fix _PySemaphore compile error on WASM

Some WASM platforms have POSIX semaphores, but not sem_timedwait.
---
 Include/internal/pycore_semaphore.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Include/internal/pycore_semaphore.h b/Include/internal/pycore_semaphore.h
index c1df8333629066..2a4ecb7147acee 100644
--- a/Include/internal/pycore_semaphore.h
+++ b/Include/internal/pycore_semaphore.h
@@ -20,7 +20,8 @@
 #   error "Require native threads. See https://bugs.python.org/issue31370"
 #endif
 
-#if defined(_POSIX_SEMAPHORES) && (_POSIX_SEMAPHORES+0) != -1
+#if (defined(_POSIX_SEMAPHORES) && (_POSIX_SEMAPHORES+0) != -1 && \
+        defined(HAVE_SEM_TIMEDWAIT))
 #   define _Py_USE_SEMAPHORES
 #   include <semaphore.h>
 #endif