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-rw-r--r--libcxx/modules/std/shared_mutex.inc4
1 files changed, 2 insertions, 2 deletions
diff --git a/libcxx/modules/std/shared_mutex.inc b/libcxx/modules/std/shared_mutex.inc
index 5f09446..95102fc 100644
--- a/libcxx/modules/std/shared_mutex.inc
+++ b/libcxx/modules/std/shared_mutex.inc
@@ -8,7 +8,7 @@
//===----------------------------------------------------------------------===//
export namespace std {
-#ifndef _LIBCPP_HAS_NO_THREADS
+#if _LIBCPP_HAS_THREADS
// [thread.sharedmutex.class], class shared_­mutex
using std::shared_mutex;
// [thread.sharedtimedmutex.class], class shared_­timed_­mutex
@@ -16,5 +16,5 @@ export namespace std {
// [thread.lock.shared], class template shared_­lock
using std::shared_lock;
using std::swap;
-#endif // _LIBCPP_HAS_NO_THREADS
+#endif // _LIBCPP_HAS_THREADS
} // namespace std