
Summary: Clean up all the different possible CMake options for specifying the ABI include paths into one CMake option named `LIBCXX_CXX_ABI_INCLUDE_PATHS`. The documentation has been updated to reflect this change. For the next week I have added explicit errors if any of the old flags is used. These errors inform users of the change and the new option to use. Before committing the change I will announce this change on cfe-dev. Reviewers: danalbert, mclow.lists Reviewed By: danalbert, mclow.lists Subscribers: jroelofs, cbergstrom, cfe-commits Differential Revision: http://reviews.llvm.org/D5039 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@232762 91177308-0d34-0410-b5e6-96231b3b80d8