#ifdef WITH_HEADLESS
# include "GHOST_SystemNULL.h"
-#elif defined(WITH_SDL_GHOST)
+#elif defined(WITH_GHOST_SDL)
# include "GHOST_SystemSDL.h"
#elif defined(WIN32)
# include "GHOST_SystemWin32.h"
if (!m_system) {
#ifdef WITH_HEADLESS
m_system = new GHOST_SystemNULL();
-#elif defined(WITH_SDL_GHOST)
+#elif defined(WITH_GHOST_SDL)
m_system = new GHOST_SystemSDL();
#elif defined(WIN32)
m_system = new GHOST_SystemWin32 ();