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diff --git a/src/libical/icalmemory.h b/src/libical/icalmemory.h
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+/* -*- Mode: C -*- */
+/*======================================================================
+ FILE: icalmemory.h
+ CREATOR: eric 30 June 1999
+
+
+ $Id: icalmemory.h,v 1.6 2008-01-15 23:17:40 dothebart Exp $
+ $Locker:  $
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of either: 
+
+    The LGPL as published by the Free Software Foundation, version
+    2.1, available at: http://www.fsf.org/copyleft/lesser.html
+
+  Or:
+
+    The Mozilla Public License Version 1.0. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+ The Initial Developer of the Original Code is Eric Busboom
+
+ (C) COPYRIGHT 2000, Eric Busboom <eric@softwarestudio.org>
+     http://www.softwarestudio.org
+======================================================================*/
+
+#ifndef ICALMEMORY_H
+#define ICALMEMORY_H
+
+#ifndef WIN32
+#include <sys/types.h> /* for size_t */
+#else
+#include <stddef.h>
+#endif
+
+/* Tmp buffers are managed by ical. References can be returned to the
+   caller, although the caller will not own the memory. */
+
+void* icalmemory_tmp_buffer(size_t size);
+char* icalmemory_tmp_copy(const char* str);
+
+/** Add an externally allocated buffer to the ring. */
+void  icalmemory_add_tmp_buffer(void*);
+
+
+/** Free all memory used in the ring */
+void icalmemory_free_ring(void);
+
+/* Non-tmp buffers must be freed. These are mostly wrappers around
+ * malloc, etc, but are used so the caller can change the memory
+ * allocators in a future version of the library */
+
+void* icalmemory_new_buffer(size_t size);
+void* icalmemory_resize_buffer(void* buf, size_t size);
+void icalmemory_free_buffer(void* buf);
+
+/**
+   icalmemory_append_string will copy the string 'string' to the
+   buffer 'buf' starting at position 'pos', reallocing 'buf' if it is
+   too small. 'buf_size' is the size of 'buf' and will be changed if
+   'buf' is reallocated. 'pos' will point to the last byte of the new
+   string in 'buf', usually a '\0' */
+
+/* THESE ROUTINES CAN NOT BE USED ON TMP BUFFERS. Only use them on
+   normally allocated memory, or on buffers created from
+   icalmemory_new_buffer, never with buffers created by
+   icalmemory_tmp_buffer. If icalmemory_append_string has to resize a
+   buffer on the ring, the ring will loose track of it an you will
+   have memory problems. */
+
+void icalmemory_append_string(char** buf, char** pos, size_t* buf_size, 
+			      const char* string);
+
+/**  icalmemory_append_char is similar, but is appends a character instead of a string */
+void icalmemory_append_char(char** buf, char** pos, size_t* buf_size, 
+			      char ch);
+
+/** A wrapper around strdup. Partly to trap calls to strdup, partly
+    because in -ansi, gcc on Red Hat claims that strdup is undeclared */
+char* icalmemory_strdup(const char *s);
+
+#endif /* !ICALMEMORY_H */
+
+
+