Index: libcxx/src/new.cpp
===================================================================
--- libcxx/src/new.cpp
+++ libcxx/src/new.cpp
@@ -29,7 +29,7 @@
 namespace std
 {
 
-#ifndef __GLIBCXX__
+#if !defined(__GLIBCXX__) && !(defined(_LIBCPP_ABI_VCRUNTIME) && defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS))
 const nothrow_t nothrow{};
 #endif
 
Index: libcxx/src/support/runtime/exception_msvc.ipp
===================================================================
--- libcxx/src/support/runtime/exception_msvc.ipp
+++ libcxx/src/support/runtime/exception_msvc.ipp
@@ -76,11 +76,13 @@
 #endif // _LIBCPP_NO_EXCEPTIONS
 }
 
+#if !(defined(_LIBCPP_ABI_VCRUNTIME) && defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS))
 bool uncaught_exception() noexcept { return uncaught_exceptions() > 0; }
 
 int uncaught_exceptions() noexcept {
     return __uncaught_exceptions();
 }
+#endif
 
 #if !defined(_LIBCPP_ABI_VCRUNTIME)
 bad_cast::bad_cast() noexcept