libcxxabi is no longer necessary for libunwind #28746
Merged
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On reading https://github.com/alexcrichton/port-of-rust/blob/master/musl/Dockerfile I was surprised to see no libcxxabi. I experimented, and it does seem to be unnecessary.
I guess it's a remnant from the 3.6 build.
r? @alexcrichton