libwrap has undefined symbols
lib - userland libraries
tcpd.h prototypes 'allow_severity' and 'deny_severity' but libwrap leaves them undefined.
Updated by Yuri Pankov about 9 years ago
Got it (checking http://svnweb.freebsd.org/base/head/lib/libwrap/libvars.c?view=log), should we probably do the same?