Yet another addition to [731644]: only use the lock if thread-support
is enabled.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 4447f09..fc5ea8f 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -142,8 +142,8 @@
/* On systems on which getaddrinfo() is believed to not be thread-safe,
(this includes the getaddrinfo emulation) protect access with a lock. */
-#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || \
- defined(__NetBSD__) || !defined(HAVE_GETADDRINFO)
+#if defined(WITH_THREAD) && (defined(__APPLE__) || defined(__FreeBSD__) || \
+ defined(__OpenBSD__) || defined(__NetBSD__) || !defined(HAVE_GETADDRINFO))
#define USE_GETADDRINFO_LOCK
#endif