What steps will reproduce the problem? $ rdiff-backup Traceback (most recent call last): File "/usr/local/bin/rdiff-backup", line 20, in <module> import rdiff_backup.Main File "/Library/Python/2.6/site-packages/rdiff_backup/Main.py", line 25, in <module> import Globals, Time, SetConnections, selection, robust, rpath, \ File "/Library/Python/2.6/site-packages/rdiff_backup/SetConnections.py", line 30, in <module> import Globals, connection, rpath File "/Library/Python/2.6/site-packages/rdiff_backup/connection.py", line 539, in <module> import Globals, Time, Rdiff, Hardlink, FilenameMapping, C, Security, \ File "/Library/Python/2.6/site-packages/rdiff_backup/Rdiff.py", line 22, in <module> import os, librsync File "/Library/Python/2.6/site-packages/rdiff_backup/librsync.py", line 28, in <module> import _librsync ImportError: dlopen(/Library/Python/2.6/site-packages/rdiff_backup/_librsync.so, 2): Symbol not found: _rs_file_copy_cb Referenced from: /Library/Python/2.6/site-packages/rdiff_backup/_librsync.so Expected in: flat namespace in /Library/Python/2.6/site-packages/rdiff_backup/_librsync.so $ nm /Library/Python/2.6/site-packages/rdiff_backup/_librsync.so | grep _rs_file_copy_cb U _rs_file_copy_cb

What is the expected output? What do you see instead?

No missing symbol error.

Please use labels and text to provide additional information.

It can be related to librsync too.

http://code.google.com/p/rudix/source/detail?r=09b3fc60fecbcbcf1b645f2c847860143b6510fc