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diff --git a/Objective-C/PyObjC/objc-runtime-apple.h b/Objective-C/PyObjC/objc-runtime-apple.h
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+++ b/Objective-C/PyObjC/objc-runtime-apple.h
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+/* Copyright (c) 1996,97,98 by Lele Gaifax.  All Rights Reserved
+ * Copyright (c) 2003 Ronald Oussoren
+ *
+ * This software may be used and distributed freely for any purpose
+ * provided that this notice is included unchanged on any and all
+ * copies. The author does not warrant or guarantee this software in
+ * any way.
+ *
+ * This file is part of the PyObjC package.
+ *
+ * RCSfile: objc_support.h,v
+ * Revision: 1.16
+ * Date: 1998/08/18 15:35:57
+ *
+ * Created Tue Sep 10 14:11:38 1996.
+ */
+
+#ifndef PyObjC_RUNTIME_APPLE_H
+#define PyObjC_RUNTIME_APPLE_H
+
+#import <Foundation/NSObject.h>
+#import <Foundation/NSString.h>
+
+#include <objc/objc-runtime.h>
+#include <objc/Protocol.h>
+
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <ctype.h>
+
+static inline int 
+PyObjCRT_SameSEL(SEL a, SEL b)
+{
+	return a == b;
+}
+
+static inline const char* 
+PyObjCRT_SELName(SEL sel)
+{
+	return sel_getName(sel);
+}
+
+static inline SEL 
+PyObjCRT_SELUID(const char* str)
+{
+	return sel_getUid(str);
+}
+
+static inline Class 
+PyObjCRT_LookUpClass(const char* name)
+{
+	return objc_lookUpClass(name);
+}
+
+static inline struct objc_method_list *
+PyObjCRT_NextMethodList(Class c, void ** p)
+{
+	return class_nextMethodList(c, p);
+}
+
+static inline void 
+PyObjCRT_InitMethod(Method m, SEL name, const char* types, IMP imp)
+{
+	memset(m, 0, sizeof(*m));
+	m->method_name = name;
+	m->method_types = strdup((char*)types);
+	m->method_imp = imp;
+}
+
+static inline void
+PyObjCRT_ClassAddMethodList(Class cls, struct objc_method_list* lst)
+{
+	class_addMethods(cls, lst);
+}
+
+
+extern struct objc_method_list* PyObjCRT_AllocMethodList(ssize_t);
+extern struct objc_protocol_list* PyObjCRT_AllocProtocolList(ssize_t);
+
+typedef Method PyObjCRT_Method_t;
+typedef Ivar PyObjCRT_Ivar_t;
+
+#define GETISA(c)       ((c)->isa)
+
+#define RECEIVER(c)     ((c).receiver)
+
+#define _C_CONST    'r'
+#define _C_IN       'n'
+#define _C_INOUT    'N'
+#define _C_OUT      'o'
+#define _C_BYCOPY   'O'
+#define _C_ONEWAY   'V'
+#define _C_LNGLNG   'q'
+#define _C_ULNGLNG  'Q'
+#define _C_BOOL	    'B'		/* (Objective-)C++ 'bool' */
+
+
+/* Return a number that is likely to change when the method list changes,
+ * and is cheap to compute.
+ */
+static inline int
+objc_methodlist_magic(Class cls)
+{
+  int res = 0; 
+  int cnt = 0;
+    
+  /* This is the documented way of enumerating the method list.  It
+   * is slower than the obvious way, but does not explode under
+   * esoteric situations.
+   */ 
+  void *iterator = NULL;
+  struct objc_method_list *mlist;
+
+  if (cls == NULL) return -1;
+
+  while ( (mlist = class_nextMethodList( cls, &iterator )) != NULL ) {
+    res += mlist->method_count;
+    cnt++;
+  }
+
+  return (cnt << 16) | (res & 0xFFFF);
+}
+
+static inline const char *
+get_selector_encoding (id self, SEL sel)
+{
+	struct objc_method* m = class_getInstanceMethod(self->isa, sel);
+
+	if (!m) {
+		return NULL;
+	} else {
+		return m->method_types;
+	}
+}
+
+#endif /* PyObjC_RUNTIME_APPLE_H */