[libcxx-commits] [libcxx] [libcxx] changes `__is_allocator` from a struct to a variable or concept (PR #68629)

[via libcxx-commits]

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@@ -57,6 +57,8 @@
     # Disable warnings for extensions used in C++03
     "-Wno-local-type-template-args",
     "-Wno-c++11-extensions",
+    "-Wno-c++14-extensions",
+    "-Wno-c++17-extensions",
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philnik777 wrote:

We'll probably want to go the route of https://reviews.llvm.org/D148431 to avoid using these extensions inside the test suite.

https://github.com/llvm/llvm-project/pull/68629