[libcxx-commits] [libcxx] [libc++] Make `std::lock_guard` available with `_LIBCPP_HAS_NO_THREADS` (PR #98717)

[Petr Hosek via libcxx-commits]

================
@@ -16,10 +14,12 @@
 
 #include <mutex>
 
+struct MyMutex {};
+
 int main(int, char**)
 {
-    std::mutex m;
-    std::lock_guard<std::mutex> lg = m; // expected-error{{no viable conversion}}
+  MyMutex m;
+  std::lock_guard<MyMutex> lg = m; // expected-error{{no viable conversion}}
----------------
petrhosek wrote:

Done.

https://github.com/llvm/llvm-project/pull/98717