* include/wsahelp.h (system_header): Add pragma.

	* include/wsahelp.h (system_header): Add pragma.
	* include/ws2spi.h (system_header): Add pragma.
	* include/rasdlg.h (system_header): Add pragma.
	* include/rasdlg.h (_RASDLG_H): Define.
	Define instead of _RASDLG_H_, this is the w32api standard.
	* include/mlang.h (_MLANG_H): Define.
	Define instead of _MLANG_H_, this is the w32api standard.
	* include/setupapi.h (_SETUPAPI_H): Define.
	Define instead of _SETUPAPI_H_, this is the w32api standard.