diff --git a/include/tdep-x86_64/dwarf-config.h b/include/tdep-x86_64/dwarf-config.h
new file mode 100644
index 00000000..8023f36f
--- /dev/null
+++ b/include/tdep-x86_64/dwarf-config.h
@@ -0,0 +1,55 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (c) 2003, 2005 Hewlett-Packard Development Company, L.P.
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+   Modified for x86_64 by Max Asbock <masbock@us.ibm.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+/* copy of include/tdep-x86/dwarf-config.h, modified slightly for x86-64
+   some consolidation is possible here */
+
+#ifndef dwarf_config_h
+#define dwarf_config_h
+
+/* XXX need to verify if this value is correct */
+#define DWARF_NUM_PRESERVED_REGS	17
+
+#define DWARF_REGNUM_MAP_LENGTH		17
+
+/* Return TRUE if the ADDR_SPACE uses big-endian byte-order.  */
+#define dwarf_is_big_endian(addr_space)	0
+
+/* Convert a pointer to a dwarf_cursor structure to a pointer to
+   unw_cursor_t.  */
+#define dwarf_to_cursor(c)	((unw_cursor_t *) (c))
+
+typedef struct dwarf_loc
+  {
+    unw_word_t val;
+#ifndef UNW_LOCAL_ONLY
+    unw_word_t type;		/* see X86_LOC_TYPE_* macros.  */
+#endif
+  }
+dwarf_loc_t;
+
+#endif /* dwarf_config_h */