[libcxx-commits] [libcxx] [libc++][test] Enhance `ADDITIONAL_COMPILE_FLAGS` to work with MSVC (PR #74974)

[Stephan T. Lavavej via libcxx-commits]

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@@ -13,9 +13,12 @@
 import subprocess
 import sys
 
-_isClang = lambda cfg: "__clang__" in compilerMacros(cfg) and "__apple_build_version__" not in compilerMacros(cfg)
+_isAnyClang = lambda cfg: "__clang__" in compilerMacros(cfg)
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StephanTLavavej wrote:

I could define it as the antonym of `_isAnyClang`. (We don't actually use `libcxx/utils/libcxx/test/features.py` in our weird setup, which is the only reason I didn't do that here.) Avoiding stale features makes total sense, I'll push a change!

https://github.com/llvm/llvm-project/pull/74974