On Wed, Nov 04, 2020 at 12:09:15PM +0100, Toke Høiland-Jørgensen wrote: > > +usage() > > +{ > > + cat <<EOF > > +Usage: $0 [OPTIONS] > > + -h | --help Show this usage info > > + --no-libbpf build the package without libbpf > > + --libbpf-dir=DIR build the package with self defined libbpf dir > > +EOF > > + exit $1 > > +} > > This would be the only command line arg that configure takes; all other > options are passed via the environment. I think we should be consistent > here; and since converting the whole configure script is probably out of > scope for this patch, why not just use the existing FORCE_LIBBPF > variable? Yes, converting the whole configure script should be split as another patch work. > > I.e., FORCE_LIBBPF=on will fail if not libbpf is present, > FORCE_LIBBPF=off will disable libbpf entirely, and if the variable is > unset, libbpf will be used if found? I like this one, with only one variable. I will check how to re-organize the script. > > Alternatively, keep them as two separate variables (FORCE_LIBBPF and > DISABLE_LIBBPF?). I don't have any strong preference as to which of > those is best, but I think they'd both be more consistent with the > existing configure script logic... Please tell me if others have any other ideas. Thanks Hnagbin