SuccessChanges

Summary

  1. unwind: disable RTTI during the build of libunwind (details)
Commit cbc872a63f81ad9482bb288165af63d7444fa3ed by Saleem Abdulrasool
unwind: disable RTTI during the build of libunwind
Disable the type information emission for libunwind.  libunwind does not
use `dynamic_cast`.  This results in a smaller binary, and more
importantly, avoids the dependency on libc++abi.  This ensures that we
have complete symbol resolution of symbols on ELF targets without
linking to the C++ runtime support library.  This change avoids the
emission of a reference to `__si_class_type_info`.
The file was modifiedlibunwind/src/CMakeLists.txt