h-vetinari wrote:
So I've been trying to follow down the rabbit hole of the failing flag checks,
and it seems the combination of `CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG` plus
https://gitlab.kitware.com/cmake/cmake/-/issues/23454 has a wider blast radius
than anticipated.
I'm not claiming that adding the
`_previous_CMAKE_{REQUIRED_LINK_OPTIONS,TRY_COMPILE_TARGET_TYPE}` dance
everywhere is the right approach here, but it was - so far - the obvious path
to just try to get things green again. It's conceivable though that it would be
easier to simply shift the detection of `CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG`
until after the other flag checks have been performed? 🤔
https://github.com/llvm/llvm-project/pull/93429
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