[PATCH] D57128: Add --unwindlib=[libgcc|compiler-rt] to parallel --rtlib=

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo added a comment.

FWIW, this also broke my bootstraps of mingw-w64 environments/toolchains. After building compiler-rt builtins, before having any libunwind/libcxx built, I previously regarded my toolchain as complete for building and testing C apps and libraries, but that fails now.

Would it be possible to add a third alternative, `--unwindlib=none`, to signal that while I'm using `--rtlib=compiler-rt`, I don't want to link to any unwinder? (In my case, I'm injecting libunwind in libc++.a so it only gets added when linking C++ code.) Or at least make it possible to only add this linker flag when linking C++? Alternatively I'll need to provide a dummy `libunwind.a` until the real one has been built.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57128/new/

https://reviews.llvm.org/D57128