Rename the CIOLIB_main to XPDEV_main move from ciolib.h to gen_defs.h

Probobly everything with a main function will now need to be recompiled...
hopefully, auto-dependencies will fix this (touching gen_defs.h should make
the entire universe rebuild imho)

src/conio/ciolib.h

@@ -353,9 +353,4 @@ CIOLIBEXPORT int CIOLIBCALL ciolib_loadfont(char *filename);
 	#define loadfont(a)				ciolib_loadfont(a)
 #endif
 
-/* Special hackery for SDL */
-#ifdef WITH_SDL
-	#define	main	CIOLIB_main
-#endif
-
 #endif	/* Do not add anything after this line */

src/xpdev/gen_defs.h

@@ -353,5 +353,9 @@ typedef struct {
 	#define LOG_DEBUG       7       /* debug-level messages */
 #endif
 
+/* Special hackery for SDL */
+#ifdef WITH_SDL
+	#define	main	XPDEV_main
+#endif
 
 #endif /* Don't add anything after this #endif statement */

src/xpdev/sdlfuncs.c

@@ -414,5 +414,5 @@ int SDL_main_env(int argc, char **argv, char **env)
 	}
 	if(sdl_initialized)
 		atexit(sdl_exit);
-	return(CIOLIB_main(argc, argv, env));
+	return(XPDEV_main(argc, argv, env));
 }