Index: lib/abi/CHANGELOG.TXT
===================================================================
--- lib/abi/CHANGELOG.TXT
+++ lib/abi/CHANGELOG.TXT
@@ -16,6 +16,16 @@
 Version 5.0
 -----------
 
+* rTBD - Fix undefined "___cxa_deleted_virtual" symbol in macosx
+
+  x86_64-linux-gnu
+  ----------------
+  No changes
+
+  x86_64-apple-darwin16.0
+  -----------------------
+  Symbol added: ___cxa_deleted_virtual
+
 * r296729 - Remove std::num_get template methods which should be inline
 
   These functions should never have had visible definitions in the dylib but
Index: lib/abi/x86_64-apple-darwin16.abilist
===================================================================
--- lib/abi/x86_64-apple-darwin16.abilist
+++ lib/abi/x86_64-apple-darwin16.abilist
@@ -2323,6 +2323,8 @@
 {'type': 'I', 'is_defined': True, 'name': '___cxa_current_exception_type'}
 {'type': 'U', 'is_defined': False, 'name': '___cxa_current_primary_exception'}
 {'type': 'U', 'is_defined': False, 'name': '___cxa_decrement_exception_refcount'}
+{'type': 'U', 'is_defined': False, 'name': '___cxa_deleted_virtual'}
+{'type': 'I', 'is_defined': True, 'name': '___cxa_deleted_virtual'}
 {'type': 'U', 'is_defined': False, 'name': '___cxa_demangle'}
 {'type': 'I', 'is_defined': True, 'name': '___cxa_demangle'}
 {'type': 'U', 'is_defined': False, 'name': '___cxa_end_catch'}
Index: lib/libc++abi.exp
===================================================================
--- lib/libc++abi.exp
+++ lib/libc++abi.exp
@@ -12,6 +12,7 @@
 ___cxa_guard_release
 ___cxa_rethrow
 ___cxa_pure_virtual
+___cxa_deleted_virtual
 ___cxa_begin_catch
 ___cxa_throw
 ___cxa_vec_cctor
Index: lib/libc++abi2.exp
===================================================================
--- lib/libc++abi2.exp
+++ lib/libc++abi2.exp
@@ -12,6 +12,7 @@
 ___cxa_guard_release
 ___cxa_rethrow
 ___cxa_pure_virtual
+___cxa_deleted_virtual
 ___cxa_begin_catch
 ___cxa_throw
 ___cxa_vec_cctor
Index: lib/libc++sjlj-abi.exp
===================================================================
--- lib/libc++sjlj-abi.exp
+++ lib/libc++sjlj-abi.exp
@@ -12,6 +12,7 @@
 ___cxa_guard_release
 ___cxa_rethrow
 ___cxa_pure_virtual
+___cxa_deleted_virtual
 ___cxa_begin_catch
 ___cxa_throw
 ___cxa_vec_cctor
Index: test/libcxx/language.support/cxa_deleted_virtual.pass.cpp
===================================================================
--- test/libcxx/language.support/cxa_deleted_virtual.pass.cpp
+++ test/libcxx/language.support/cxa_deleted_virtual.pass.cpp
@@ -0,0 +1,15 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03
+
+// Test exporting the symbol: "__cxa_deleted_virtual" in macosx
+
+struct S { virtual void f() = delete; };
+int main() { new S; }