Hi, how pkg_delete is supposed to work?

core# pkg_delete -r -f -K /usr/pkg/packages libxml2-2.6.13nb1
pkg_delete: unknown option -- =20
usage: pkg_delete [-vVDdnFfOrR] [-p prefix] pkg-name ...
pkg_delete: unable to delete package libxml2-2.6.13nb1 from view /var/db/pkg
core# pkg_delete -rf -K /usr/pkg/packages libxml2-2.6.13nb1=20
pkg_delete: unknown option -- =20
usage: pkg_delete [-vVDdnFfOrR] [-p prefix] pkg-name ...
pkg_delete: unable to delete package libxml2-2.6.13nb1 from view /var/db/pkg
core# pkg_delete -r -K /usr/pkg/packages libxml2-2.6.13nb1=20
pkg_delete: package `libxml2-2.6.13nb1' is required by other packages:
        openbox-3.2nb1
        bkedit-0.6.23nb1
pkg_delete: unable to delete package libxml2-2.6.13nb1 from view /var/db/pkg

core# export PKG_DBDIR=3D/usr/pkg/packages
core# pkg_delete -r libxml2
pkg_delete: package `libxml2-2.6.13nb1' is required by other packages:
        openbox-3.2nb1
        bkedit-0.6.23nb1
pkg_delete: unable to delete package libxml2-2.6.13nb1 from view /var/db/pkg
core# pkg_delete -r -f libxml2
pkg_delete: unknown option -- =20
usage: pkg_delete [-vVDdnFfOrR] [-p prefix] pkg-name ...
pkg_delete: unable to delete package libxml2-2.6.13nb1 from view /var/db/pkg
core# pkg_delete -rf libxml2
pkg_delete: unknown option -- =20
usage: pkg_delete [-vVDdnFfOrR] [-p prefix] pkg-name ...
pkg_delete: unable to delete package libxml2-2.6.13nb1 from view /var/db/pkg

thanks

C=E9sar Catri=E1n C.