Why doesn sourceinstall use Checkinstall?
Checkinstall is a nice program that tracks a source installation using Installwatch, which is Copyright 1998 by Pancrazio `Ezio’ de Mauro, and is now part of the Checkinstall distribution. Installwatch is a low-level tool that intercepts calls to file functions in the dynamically linked glibc that alter the file system during ‘make install’ (or another installation command). Then, Checkinstall builds binary Slackware, RPM or Debian packages based on that information.