Add _mingw.h header for making sure MSABI_LONG is defined for resource-compiled.


git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@5276 4407c894-4637-0410-b4f5-ada5f102cad1
diff --git a/mingw-w64-headers/include/winver.h b/mingw-w64-headers/include/winver.h
index cfb1ab6..a905c9f 100644
--- a/mingw-w64-headers/include/winver.h
+++ b/mingw-w64-headers/include/winver.h
@@ -6,6 +6,7 @@
 #ifndef VER_H
 #define VER_H
 
+#include <_mingw.h>
 #include <_mingw_unicode.h>
 
 #ifdef __cplusplus