diff --git a/lib/memory.h b/lib/memory.h
new file mode 100644
index 000000000..4e32a6772
--- /dev/null
+++ b/lib/memory.h
@@ -0,0 +1,50 @@
+#ifndef _CURL_MEMORY_H
+#define _CURL_MEMORY_H
+/***************************************************************************
+ *                                  _   _ ____  _     
+ *  Project                     ___| | | |  _ \| |    
+ *                             / __| | | | |_) | |    
+ *                            | (__| |_| |  _ <| |___ 
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ * 
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * $Id$
+ ***************************************************************************/
+
+#include <curl/curl.h> /* for the typedefs */
+
+extern curl_malloc_callback Curl_cmalloc;
+extern curl_free_callback Curl_cfree;
+extern curl_realloc_callback Curl_crealloc;
+extern curl_strdup_callback Curl_cstrdup;
+extern curl_calloc_callback Curl_ccalloc;
+
+#ifndef CURLDEBUG
+/* Only do this define-mania if we're not using the memdebug system, as that
+   has preference on this magic. */
+#undef strdup
+#define strdup(ptr) Curl_cstrdup(ptr)
+#undef malloc
+#define malloc(size) Curl_cmalloc(size)
+#undef calloc
+#define calloc(nbelem,size) Curl_ccalloc(nbelem, size)
+#undef realloc
+#define realloc(ptr,size) Curl_crealloc(ptr, size)
+#undef free
+#define free(ptr) Curl_cfree(ptr)
+
+#endif
+
+#endif /* _CURL_MEMORY_H */