CompileAProgram

Collect the original source tarball, optional debian or ubuntu diff file, and the .dsc file in one directory.

 dpkg-source -x dscfilename-version-etc.dsc

This will unpack the original file, and patch it wilth the diff file. Now, "cd" into the extracted source folder and

 dpkg-buildpackage -rfakeroot -b

Once it is done, cd .. and install the .deb files