FTBFS following instructions from the website

[Salvo Tomaselli]

> After compiling marble, did you do:
>
> # make install ? (after make #)
It is not specified in the build page to do so. So no, I didn't do it.

As a personal preference, I never run "make install" outside of a 
chroot, because it's going to spread files all over the filesystem, that 
aren't tracked by anything, so I view this intense forking activity as a 
downside.

Best