[libcxx-dev] compiler-rt

Franz Fehringer via libcxx-dev libcxx-dev at lists.llvm.org
Sun Oct 14 08:47:57 PDT 2018

Dear libcxx community,

I would like to compile the latest libcxx on Ubuntu 16.04.
Regarding the use of compiler-rt instead of libgcc and given there seems
to be a dependency on libunwind i have the following questions:

  * Should i use the system libunwind or the llvm one?
  * Can i use libunwind.a instead of libunwind.so?
  * Should i set -D_GNU_SOURCE for the compile (there is at least one
    cmake test which fails without this if the system libunwind is used)?
  * There once was an activity (or at least a proposal) to combine
    compiler-rt with libunwind, is this still on target?

Thanks in advance for answers


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