[PATCH] D38827: Add a cmake option for using strcmp for type_infos.

[Dan Albert via Phabricator via cfe-commits]

danalbert created this revision.
Herald added a subscriber: mgorny.

libc++ doesn't yet have the code for this, but libc++abi does. Adding
the switch to libc++ since the flag in libc++abi is
`_LIBCXX_DYNAMIC_FALLBACK`, not `_LIBCXXABI_DYNAMIC_FALLBACK`, and it
will be needed here as well.


Repository:
  rL LLVM

https://reviews.llvm.org/D38827

Files:
  CMakeLists.txt


Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -103,6 +103,7 @@
 option(LIBCXX_ABI_FORCE_MICROSOFT "Ignore auto-detection and force use of the Microsoft ABI.")
 set(LIBCXX_ABI_DEFINES "" CACHE STRING "A semicolon separated list of ABI macros to define in the site config header.")
 option(LIBCXX_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF)
+option(LIBCXX_DYNAMIC_FALLBACK  "Use strcmp fallback for comparing type_infos." OFF)
 
 if (NOT LIBCXX_ENABLE_SHARED AND NOT LIBCXX_ENABLE_STATIC)
   message(FATAL_ERROR "libc++ must be built as either a shared or static library.")


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