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

[Petr Hosek via libcxx-commits]

================
@@ -14,13 +14,9 @@
 
 #include <mutex>
 
-int main(int, char**)
-{
-    std::mutex m0;
-    std::mutex m1;
-    std::lock_guard<std::mutex> lg0(m0);
-    std::lock_guard<std::mutex> lg(m1);
-    lg = lg0;
+class MyMutex;
 
+int main(int, char**) {
+  static_assert(!std::is_copy_assignable<std::lock_guard<MyMutex> >::value, "");
   return 0;
 }
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petrhosek wrote:

Done.

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