mingw-w64-headers/crt/sdks/_mingw_directx.h.in

#if MINGW_HAS_DX
#ifndef MINGW_HAS_DDRAW_H

#define MINGW_HAS_DDRAW_H 1
#define MINGW_DDRAW_VERSION	7
#endif
#else
#undef MINGW_HAS_DDRAW_H
#undef MINGW_DDRAW_VERSION
#endif