diff --git a/src/nsterm.h b/src/nsterm.h
index d247f900950..29d312a4840 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -54,7 +54,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 @class EmacsToolbar;
 
-@interface EmacsView : NSView <NSTextInput,NSWindowDelegate>
+@interface EmacsView : NSView <NSTextInput> /* 10.6+: NSWindowDelegate */
    {
    char *old_title;
    BOOL windowClosing;
@@ -104,7 +104,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
    ========================================================================== */
 
-@interface EmacsMenu : NSMenu <NSMenuDelegate>
+@interface EmacsMenu : NSMenu  /* 10.6+: <NSMenuDelegate> */
 {
   struct frame *frame;
   unsigned long keyEquivModMask;
@@ -131,7 +131,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 @class EmacsImage;
 
-@interface EmacsToolbar : NSToolbar <NSToolbarDelegate>
+@interface EmacsToolbar : NSToolbar  /* 10.6+: <NSToolbarDelegate> */
    {
      EmacsView *emacsView;
      NSMutableDictionary *identifierToItem;
@@ -174,7 +174,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 - (Lisp_Object)runDialogAt: (NSPoint)p;
 @end
 
-@interface EmacsTooltip : NSObject <NSWindowDelegate>
+@interface EmacsTooltip : NSObject  /* 10.6+: <NSWindowDelegate> */
   {
     NSWindow *win;
     NSTextField *textField;
@@ -328,6 +328,18 @@ extern EmacsMenu *mainMenu, *svcsMenu, *dockMenu;
 @end
 #endif
 
+#ifndef NS_HAVE_NSINTEGER
+#if defined(__LP64__) && __LP64__
+typedef double CGFloat;
+typedef long NSInteger;
+typedef unsigned long NSUInteger;
+#else
+typedef float CGFloat;
+typedef int NSInteger;
+typedef unsigned int NSUInteger;
+#endif /* not LP64 */
+#endif /* not NS_HAVE_NSINTEGER */
+
 #endif  /* __OBJC__ */