vsapsai added a comment.
What about defining a feature for unsupported configurations? I've tried
if '__cpp_aligned_new' not in macros or \
intMacroValue(macros['__cpp_aligned_new']) < 201606:
self.config.available_features.add('libcpp-no-aligned-new')
and `// UNSUPPORTED: libcpp-no-aligned-new`. Seems to be working but it's not
sufficient. For example, clang-6 for old macOS versions would define
`__cpp_aligned_new` but a test would fail. Still, we can use another feature,
not necessarily macro-based. Though probably something like
`libcpp-no-aligned-new` can replace `// UNSUPPORTED: c++98, c++03, c++11,
c++14`.
Repository:
rCXX libc++
https://reviews.llvm.org/D50341
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