Index: libcxx/trunk/include/__config
===================================================================
--- libcxx/trunk/include/__config
+++ libcxx/trunk/include/__config
@@ -626,6 +626,12 @@
 #endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM]
 
 #if defined(_LIBCPP_OBJECT_FORMAT_COFF)
+#ifdef _DLL
+# define _LIBCPP_CRT_FUNC __declspec(dllimport)
+#else
+# define _LIBCPP_CRT_FUNC
+#endif
+
 #if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
 # define _LIBCPP_DLL_VIS
 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
Index: libcxx/trunk/src/support/runtime/exception_msvc.ipp
===================================================================
--- libcxx/trunk/src/support/runtime/exception_msvc.ipp
+++ libcxx/trunk/src/support/runtime/exception_msvc.ipp
@@ -15,30 +15,18 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#if !defined(_ACRTIMP)
-#define _ACRTIMP __declspec(dllimport)
-#endif
-
-#if !defined(_VCRTIMP)
-#define _VCRTIMP __declspec(dllimport)
-#endif
-
-#if !defined(__CRTDECL)
-#define __CRTDECL __cdecl
-#endif
-
 extern "C" {
-typedef void (__CRTDECL* terminate_handler)();
-_ACRTIMP terminate_handler __cdecl set_terminate(
+typedef void (__cdecl* terminate_handler)();
+_LIBCPP_CRT_FUNC terminate_handler __cdecl set_terminate(
     terminate_handler _NewTerminateHandler) throw();
-_ACRTIMP terminate_handler __cdecl _get_terminate();
+_LIBCPP_CRT_FUNC terminate_handler __cdecl _get_terminate();
 
-typedef void (__CRTDECL* unexpected_handler)();
-_VCRTIMP unexpected_handler __cdecl set_unexpected(
+typedef void (__cdecl* unexpected_handler)();
+_LIBCPP_CRT_FUNC unexpected_handler __cdecl set_unexpected(
     unexpected_handler _NewUnexpectedHandler) throw();
-_VCRTIMP unexpected_handler __cdecl _get_unexpected();
+_LIBCPP_CRT_FUNC unexpected_handler __cdecl _get_unexpected();
 
-_VCRTIMP int __cdecl __uncaught_exceptions();
+_LIBCPP_CRT_FUNC int __cdecl __uncaught_exceptions();
 }
 
 namespace std {
Index: libcxx/trunk/src/support/runtime/exception_pointer_msvc.ipp
===================================================================
--- libcxx/trunk/src/support/runtime/exception_pointer_msvc.ipp
+++ libcxx/trunk/src/support/runtime/exception_pointer_msvc.ipp
@@ -11,30 +11,16 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#if !defined(_CRTIMP2_PURE)
-#define _CRTIMP2_PURE __declspec(dllimport)
-#endif
-
-#if !defined(__CLRCALL_PURE_OR_CDECL)
-#define __CLRCALL_PURE_OR_CDECL __cdecl
-#endif
-
-_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrCreate(void*);
-_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrDestroy(void*);
-_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrCopy(void*,
-                                                              const void*);
-_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
-__ExceptionPtrAssign(void*, const void*);
-_CRTIMP2_PURE bool __CLRCALL_PURE_OR_CDECL
-__ExceptionPtrCompare(const void*, const void*);
-_CRTIMP2_PURE bool __CLRCALL_PURE_OR_CDECL
-__ExceptionPtrToBool(const void*);
-_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL __ExceptionPtrSwap(void*, void*);
-_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
-__ExceptionPtrCurrentException(void*);
-[[noreturn]] _CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
-__ExceptionPtrRethrow(const void*);
-_CRTIMP2_PURE void __CLRCALL_PURE_OR_CDECL
+_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCreate(void*);
+_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrDestroy(void*);
+_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCopy(void*, const void*);
+_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrAssign(void*, const void*);
+_LIBCPP_CRT_FUNC bool __cdecl __ExceptionPtrCompare(const void*, const void*);
+_LIBCPP_CRT_FUNC bool __cdecl __ExceptionPtrToBool(const void*);
+_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrSwap(void*, void*);
+_LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrCurrentException(void*);
+[[noreturn]] _LIBCPP_CRT_FUNC void __cdecl __ExceptionPtrRethrow(const void*);
+_LIBCPP_CRT_FUNC void __cdecl
 __ExceptionPtrCopyException(void*, const void*, const void*);
 
 namespace std {