[PATCH] D20886: [libcxxabi] Allow target flags to affect configuration tests.

[Eric Fiselier via cfe-commits]

EricWF added inline comments.

================
Comment at: CMakeLists.txt:201
@@ +200,3 @@
+  message(FATAL_ERROR "LIBCXXABI_BUILD_32_BITS=ON is not supported on this platform.")
+endif()
+
----------------
Done in r271462.


http://reviews.llvm.org/D20886