[PATCH] D21991: [libunwind][ARM] Improve unwinder stack usage - Make WMMX support optional

Saleem Abdulrasool via cfe-commits cfe-commits at lists.llvm.org
Wed Jul 6 07:45:42 PDT 2016

compnerd added a comment.

Right, we make it a cmake define corresponding to the AEABI name.  In the future when clang knows to correctly emit the macro, we just rely on that.  Figuring it out based on the target in my case means: `${CMAKE_C_COMPILER} -x c -E - -dM <<< "__ARM_WMMX"`.  Thats not too terrible to do, but since the support for WMMX is rare, I think skimping on that bit of preparation is acceptable too.


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