Commit 12d2a6e5a6 introduced a regression whereby ./configure would error out for lack of libxdp. * gnu/packages/dns.scm (knot)[inputs]: Replace LIBBPF with LIBBPF-0.8. Change-Id: Ifeeacc27705d4d617ee0c58672f22d5f9de06389
12d2a6e5a6