--- /dev/null
+++ dyld/dyld-97.1/src/dyldLibSystemInterface.h
@@ -0,0 +1,62 @@
+/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
+ *
+ * Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+#ifndef __DYLDLIBSYSTEMHELPERS__
+#define __DYLDLIBSYSTEMHELPERS__
+
+#include <stdint.h>
+
+
+namespace dyld {
+	//
+	// This file contains the synchronization utilities used by dyld to be thread safe.
+	// This struct is implemented in in libSystem (where pthreads is available)
+	// and passed to dyld to use.
+	//
+	struct LibSystemHelpers
+	{
+		uintptr_t	version;
+		void		(*acquireGlobalDyldLock)();
+		void		(*releaseGlobalDyldLock)();
+		char*		(*getThreadBufferFor_dlerror)(uint32_t sizeRequired);
+		// addded in version 2
+		void*		(*malloc)(size_t);
+		void		(*free)(void*);
+		int			(*cxa_atexit)(void (*)(void*), void*, void*);
+		// addded in version 3
+		void		(*dyld_shared_cache_missing)();
+		void		(*dyld_shared_cache_out_of_date)();
+		// addded in version 4
+		void		(*acquireDyldInitializerLock)();
+		void		(*releaseDyldInitializerLock)();
+	};
+};
+
+
+
+
+
+#endif // __DYLDLIBSYSTEMHELPERS__
+