XQuartz: Buildfix for Leopard and older

Signed-off-by: Jeremy Huddleston <jeremyhu@freedesktop.org>

hw/xquartz/X11Controller.h

@@ -55,7 +55,11 @@ typedef unsigned int NSUInteger;
 #endif
 #endif
 
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
 @interface X11Controller : NSObject <NSTableViewDataSource>
+#else
+@interface X11Controller : NSObject
+#endif
 {
     IBOutlet NSPanel *prefs_panel;
 

hw/xquartz/quartzKeyboard.c

@@ -40,6 +40,7 @@
 #define HACK_MISSING 1
 #define HACK_KEYPAD 1
 
+#include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>