Revert fix to http://llvm.org/bugs/show_bug.cgi?id=12867 for the reason now included in the code comment.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@157128 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/memory b/include/memory
index 8456a94..0f3ccec 100644
--- a/include/memory
+++ b/include/memory
@@ -3603,9 +3603,10 @@
long use_count() const _NOEXCEPT {return __shared_count::use_count();}
__shared_weak_count* lock() _NOEXCEPT;
-#ifndef _LIBCPP_NO_RTTI
+ // purposefully not protected with #ifndef _LIBCPP_NO_RTTI because doing so
+ // breaks ABI for those clients who need to compile their projects with
+ // -fno-rtti and yet link against a libc++.dylib compiled without -fno-rtti.
virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
-#endif
private:
virtual void __on_zero_shared_weak() _NOEXCEPT = 0;
};