ports-mgmt/portconfig: allow to build with PIE
portsconfig is a dynamic binary which static link to all the
dependencies, which causes a problem when it links with base provided
static libraries as they are not PIE friendly.
PR: 274429
Reported by: netchild
ports-mgmt/portconfig: new port
portconfig is a dialog4ports replacement based on libbsddialog.
Note this version is build as semi static: libbsddialog and libncurses
has been linked statically and the binary remaind dynamic