On 08/22/2015 11:54 AM, Riccardo Boninsegna wrote:
>[...]
> If that program's source has a ./configure program, you may be able to
> fix the problem by adding this argument → --prefix=/ ←
> (Don't ask me how to do have dpkg-buildpackage do that, though!)

In debian/rules:

override_dh_auto_configure:
     dh_auto_configure -- --prefix=/usr

Kind regards,
T.