fixed some sdl compile errors

src/input/zapper.cpp

@@ -23,9 +23,9 @@
 
 #include "share.h"
 #include "zapper.h"
-#include "movie.h"
+#include "../movie.h"
 
-static ZAPPER ZD[2];
+extern ZAPPER ZD[2];
 
 static void ZapperFrapper(int w, uint8 *bg, uint8 *spr, uint32 linets, int final)
 {

src/input/zapper.h

@@ -10,6 +10,6 @@ struct ZAPPER
 	uint64 zaphit;
 };
 
-extern ZAPPER ZD[2];
+static ZAPPER ZD[2];
 
 #endif

src/video.cpp

@@ -45,6 +45,7 @@
 #include "input.h"
 #include "vsuni.h"
 #include "drawing.h"
+#include "driver.h"
 
 uint8 *XBuf=NULL;
 uint8 *XBackBuf=NULL;