Index: include/wx/osx/webviewhistoryitem_webkit.h
===================================================================
--- include/wx/osx/webviewhistoryitem_webkit.h (revision 69567)
+++ include/wx/osx/webviewhistoryitem_webkit.h (working copy)
@@ -12,6 +12,13 @@
 
 #include "wx/setup.h"
 
+#ifndef __OBJC__
+#ifndef DEFINED_ID
+#define DEFINED_ID 1
+typedef struct objc_object* id;
+#endif
+#endif
+
 #if wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT && (defined(__WXOSX_COCOA__) \
                                           ||  defined(__WXOSX_CARBON__))
 
@@ -27,7 +34,7 @@
 
 private:
     wxString m_url, m_title;
-    struct objc_object *m_histItem;
+    id m_histItem;
 };
 
 #endif // wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT 
Index: include/wx/osx/webview_webkit.h
===================================================================
--- include/wx/osx/webview_webkit.h (revision 69567)
+++ include/wx/osx/webview_webkit.h (working copy)
@@ -21,6 +21,13 @@
 #include "wx/control.h"
 #include "wx/webview.h"
 
+#ifndef __OBJC__
+#ifndef DEFINED_ID
+#define DEFINED_ID 1
+typedef struct objc_object* id;
+#endif
+#endif
+
 // ----------------------------------------------------------------------------
 // Web Kit Control
 // ----------------------------------------------------------------------------
@@ -149,7 +156,7 @@
     wxWindowID m_windowID;
     wxString m_pageTitle;
 
-    struct objc_object *m_webView;
+    id m_webView;
 
     // we may use this later to setup our own mouse events,
     // so leave it in for now.