[PATCH] D61387: [CMake][benchmark] Cache result of CXXFeatureCheck

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a reviewer: EricWF.
lebedev.ri added a comment.

In D61387#1488279 <https://reviews.llvm.org/D61387#1488279>, @beanz wrote:

> Libc++'s test cases aren't buildable without LLVM. Why should the benchmarks be?


Note that libc++'s `benchmark` predates llvm's `benchmark`,
so if libc++ really doesn't care about building benchmarks in standalone mode,
then i suppose libc++ `benchmark` is the one you want to drop.
But this isn't particularly relevant to this patch, i suppose.


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https://reviews.llvm.org/D61387