Although if you made a deb/rpm solution you'd cover roughly 80% of the linux market, I know a lot of people are now distributing tar.gz packages with a install.sh script which is nice since it build from source/.a and .o files upon installation and does all the dirty work - be it debian, redhat, the pacman system arch uses etc... All you'd need in the dep list are the fpc meta package and the appropriate dev libs. Although, you could include the *-dev .so files in your gz archive...

The niceness of just doing a
Code:
tar xvf somepackage.tar.gz
cd somepackage
sudo ./install.sh
In 50 less keystrokes thanks to tab in tty is so nice for the end user.... even the make $ make install route is nice