diff --git a/src/sdl.c b/src/sdl.c
deleted file mode 100644
--- a/src/sdl.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/* $Id$ */
-
-#include "stdafx.h"
-
-#ifdef WITH_SDL
-
-#include "openttd.h"
-#include "sdl.h"
-#include <SDL.h>
-
-#ifdef UNIX
-#include <signal.h>
-
-#ifdef __MORPHOS__
-	// The system supplied definition of SIG_DFL is wrong on MorphOS
-	#undef SIG_DFL
-	#define SIG_DFL (void (*)(int))0
-#endif
-#endif
-
-static int _sdl_usage;
-
-#ifdef DYNAMICALLY_LOADED_SDL
-
-#include "win32.h"
-
-#define M(x) x "\0"
-static const char sdl_files[] =
-	M("sdl.dll")
-	M("SDL_Init")
-	M("SDL_InitSubSystem")
-	M("SDL_GetError")
-	M("SDL_QuitSubSystem")
-	M("SDL_UpdateRect")
-	M("SDL_UpdateRects")
-	M("SDL_SetColors")
-	M("SDL_WM_SetCaption")
-	M("SDL_ShowCursor")
-	M("SDL_FreeSurface")
-	M("SDL_PollEvent")
-	M("SDL_WarpMouse")
-	M("SDL_GetTicks")
-	M("SDL_OpenAudio")
-	M("SDL_PauseAudio")
-	M("SDL_CloseAudio")
-	M("SDL_LockSurface")
-	M("SDL_UnlockSurface")
-	M("SDL_GetModState")
-	M("SDL_Delay")
-	M("SDL_Quit")
-	M("SDL_SetVideoMode")
-	M("SDL_EnableKeyRepeat")
-	M("SDL_EnableUNICODE")
-	M("SDL_VideoDriverName")
-	M("SDL_ListModes")
-	M("SDL_GetKeyState")
-	M("SDL_LoadBMP_RW")
-	M("SDL_RWFromFile")
-	M("SDL_SetColorKey")
-	M("SDL_WM_SetIcon")
-	M("SDL_MapRGB")
-	M("")
-;
-#undef M
-
-SDLProcs sdl_proc;
-
-static const char *LoadSdlDLL(void)
-{
-	if (sdl_proc.SDL_Init != NULL)
-		return NULL;
-	if (!LoadLibraryList((Function *)(void *)&sdl_proc, sdl_files))
-		return "Unable to load sdl.dll";
-	return NULL;
-}
-
-#endif // DYNAMICALLY_LOADED_SDL
-
-
-#ifdef UNIX
-static void SdlAbort(int sig)
-{
-	/* Own hand-made parachute for the cases of failed assertions. */
-	SDL_CALL SDL_Quit();
-
-	switch (sig) {
-		case SIGSEGV:
-		case SIGFPE:
-			signal(sig, SIG_DFL);
-			raise(sig);
-			break;
-
-		default:
-			break;
-	}
-}
-#endif
-
-
-const char* SdlOpen(uint32 x)
-{
-#ifdef DYNAMICALLY_LOADED_SDL
-	{
-		const char *s = LoadSdlDLL();
-		if (s != NULL) return s;
-	}
-#endif
-	if (_sdl_usage++ == 0) {
-		if (SDL_CALL SDL_Init(x) == -1)
-			return SDL_CALL SDL_GetError();
-	} else if (x != 0) {
-		if (SDL_CALL SDL_InitSubSystem(x) == -1)
-			return SDL_CALL SDL_GetError();
-	}
-
-#ifdef UNIX
-	signal(SIGABRT, SdlAbort);
-	signal(SIGSEGV, SdlAbort);
-	signal(SIGFPE, SdlAbort);
-#endif
-
-	return NULL;
-}
-
-void SdlClose(uint32 x)
-{
-	if (x != 0)
-		SDL_CALL SDL_QuitSubSystem(x);
-	if (--_sdl_usage == 0) {
-		SDL_CALL SDL_Quit();
-		#ifdef UNIX
-		signal(SIGABRT, SIG_DFL);
-		signal(SIGSEGV, SIG_DFL);
-		signal(SIGFPE, SIG_DFL);
-		#endif
-	}
-}
-
-#endif