[PATCH] Allow libc++abi to be built without unwinder.

[Logan Chien]

Ping?

On Sat, Jan 17, 2015 at 4:02 PM, Logan Chien <tzuhsiang.chien at gmail.com>
wrote:

> Hi danalbert, rengolin, jroelofs,
>
> The efforts to build LLVM ARM EHABI unwinder breaks the possibility
> to build libcxxabi with libgcc.  This commit fix the problem by
> introducing the LIBCXXABI_USE_LLVM_UNWINDER conditional compilation
> flag and guard the unwinder-specific changes in libc++abi.
>
> (p.s. This is the 2/6 patch to fix the backtrace_test and libgcc support.)
>
> http://reviews.llvm.org/D7030
>
> Files:
>   CMakeLists.txt
>   src/cxa_personality.cpp
>
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