What to put in a devel deb package

[Alejandro Arrieta Rios <aarrieta@inf.utfsm.cl>]

Hello 
 
I want to make deb packages of some programs that I use (quake2 dday mod). 
I saw that source packages need *-dev packages to be built. These -dev 
packages only contain header files, or something more? 
I need a quake2-dev to start trying to make my quake2 dday mod deb package, 
but it doesnt exists. So i want to make the quake2-devel myself. 
All hints are welcomed. 
 
I have almost finished replacing the textures from the Quake2 CD that are 
needed to play this mod, so it will have no problem to make into Debian. 
 
Bye 
 
--- 
Alejandro Arrieta Rios 
CS Student UTFSM 
Chile