question about copyright file

[Stani]

Hi,
I'm working on a new version of Phatch.
I'd like to include the copyright file in the source tarball of phatch.
Right now it was only present in the debian svn papt repository. As I feel
that other linux distributions need this file as well, would it be possible
to that the installation scripts copies it from the source tarball into the
debian folder in such way that it can be removed from svn debian? I prefer
not to maintain two identical copies of the same file.
Best regards,
Stani