xdelta3 0v2.dfsg-1.1ubuntu1 (powerpc binary) in ubuntu lucid

 Xdelta3 is a tool designed to compute changes between binary files. These
 changes (delta files) are similar to the output of the "diff" program,
 in that they may be used to store and transmit only the changes between
 files.
 .
 Xdelta3 is the new version xdelta rewritten to use the VCDIFF (RFC3284)
 format as delta storage.
 The package xdelta should be used in case you have a binary diff in the
 old format.