rdup is a small program, which depends on a number of a other programs
and tools to make it all work. The dependencies are listed here:

Mandatory:
o libglib (core C gtk library)
o libpcre (Perl regular expressions)

To build:
o automake
o autoconf

Some very small shell scripts are included in the sh/ directory
they depend on bash and GNU date and GNU cp.

rdup-tr has an extra dependency on
o libarchive

rdup-up has no extra dependencies.
