gimp-2.6.5.tar.bz2 (from gimp.org)
tar xvf gimp-2.6.5.tar.bz2 cd gimp-2.6.5 ./configure makesudo make install
gimp-2.6.5.tar.bz2 (from gimp.org)
tar xvf gimp-2.6.5.tar.bz2 cd gimp-2.6.5 ./configure makesudo make install
configure/make/make install -- but I'll skip the install step (and tell you why in a minute).
Actually for GIMP you're supposed to add some other magic in the ./configure step.
But for the sake of this demo I'll skip that for now.
But what if it doesn't build?