[Trisquel-users] Can I make install over a package that can't be removed due to dependencies

[jah]

I want to `make install nmap` from its subversion repository, but aptitude  
wants to fix broken packages by removing gnome-nettool, trisquel and  
trisquel-base-recommended if I try to `aptitude uninstall nmap`.

Can I just make install without removing the nmap package or is there some  
way to inform aptitude of my intention?