Step down to i386 build from x86_64

Needed for maccontrols.cpp HIToolbox functions which are just available on i386:
* StillDown()
* GetIndString()
* WaitNextEvent()
* GetMouse()

source/maccontrols.cpp

@@ -24,6 +24,7 @@ extern "C"{
 #include "gameframe.h"
 #include "gamesystem.h"
 #include "gametime.h"
+#include "gamemem.h"
 
 typedef struct{
 	pRecDevice device;
@@ -553,7 +554,7 @@ void GetInput(tKeyConfig *keyConfig)
 	Str255 str;
 	GetIndString(str,128,key+1);
 	int len=str[0];
-	BlockMoveData(str+1,str,255);
+    MemoryMove(str+1,str,255);
 	str[len]='\0';
 	
 	if(str[0])