On debian-based distros you should be able to install a package called "dpkg-dev" which includes "dpkg-buildpackage" a tool to build debian packages from special prepared source-trees.
The source trees have to include a subdir called debian.
C::B has got such a source-tree. So you can easily build .deb-packages by running "./bootstrap" and "dpkg-buildpackage" from the root-dir of the C::B-sources.
The original svn-sources lack some dependencies. to make them more portabel, but they might be broken on some debian-distros.
You can also download the sources from my repo. I fixed some dependencies to compile clean on the debian main-suites and to fix the binaries dependencies.
There are also some small patches included, that are not (yet) in svn.
If you use my sources you also need (at least) the dpatch-package.
If you have any questions about using the debian buildsystem with C::B feel free to ask. I will help if I can.