Copy over NSInteger safety typedefs from Fl_cocoa.mm

so that we can continue to compile for OS X 10.4.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9973 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

src/Fl_Sys_Menu_Bar.mm

@@ -43,6 +43,16 @@
 
 #import <Cocoa/Cocoa.h>
 
+#ifndef NSINTEGER_DEFINED // appears with 10.5 in NSObjCRuntime.h
+#if defined(__LP64__) && __LP64__
+typedef long NSInteger;
+typedef unsigned long NSUInteger;
+#else
+typedef long NSInteger;
+typedef unsigned int NSUInteger;
+#endif
+#endif
+
 #include "flstring.h"
 #include <stdio.h>
 #include <ctype.h>