Prevent __wspiapi_countof_helper from clashing with ctypes.h

Rename _N to __wspiapi_countof_helper_N

mingw-w64-headers/include/wspiapi.h

diff --git a/mingw-w64-headers/include/wspiapi.h b/mingw-w64-headers/include/wspiapi.h
index 3328955..476a561 100644
--- a/mingw-w64-headers/include/wspiapi.h
+++ b/mingw-w64-headers/include/wspiapi.h
@@ -23,7 +23,7 @@
 #ifndef __cplusplus
 #define _WSPIAPI_COUNTOF(_Array) (sizeof(_Array) / sizeof(_Array[0]))
 #else
-template <typename __CountofType,size_t _N> char (&__wspiapi_countof_helper(__CountofType (&_Array)[_N]))[_N];
+template <typename __CountofType,size_t __wspiapi_countof_helper_N> char (&__wspiapi_countof_helper(__CountofType (&_Array)[__wspiapi_countof_helper_N]))[__wspiapi_countof_helper_N];
 #define _WSPIAPI_COUNTOF(_Array) sizeof(__wspiapi_countof_helper(_Array))
 #endif
 #endif