[libunwind] [libunwind][cmake] Compile _Unwind* routines with -fexceptions (PR #121819)

[Paul Kirth via cfe-commits]

ilovepi wrote:

Is there any known issue w/ the NDK 13 bot? The log cuts out midway through tests, so I assume this is some kind of timeout or another issue w/ the emulator. the complete log only shows some warnings when launching the emulator, but IDK if those are relevant. They seem benign to me, but I'm no expert.

https://buildkite.com/llvm-project/libcxx-ci/builds/39796#01943d0f-1d31-4e60-a670-d2bc43adcd4e

https://github.com/llvm/llvm-project/pull/121819