+#if defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 2, 4 )
+typedef struct tagNMDATETIMECHANGE
+{
+ NMHDR nmhdr;
+ DWORD dwFlags;
+ SYSTEMTIME st;
+} NMDATETIMECHANGE;
+#endif // old gcc headers
+
+// apparently some versions of mingw define these macros erroneously
+#ifndef DateTime_GetSystemtime
+ #define DateTime_GetSystemtime DateTime_GetSystemTime
+#endif
+
+#ifndef DateTime_SetSystemtime
+ #define DateTime_SetSystemtime DateTime_SetSystemTime
+#endif
+