# perl for help2man.
STEPMAKE_PERL(OPTIONAL)
# mftrace for generating pfa's, pfb's
-STEPMAKE_PROGS(MFTRACE, pktrace mftrace, OPTIONAL, 1.0.17)
+STEPMAKE_PROGS(MFTRACE, pktrace mftrace, REQUIRED, 1.0.17)
# new makeinfo for multi-page website docs
-STEPMAKE_PROGS(MAKEINFO, makeinfo, OPTIONAL, 4.1)
+STEPMAKE_PROGS(MAKEINFO, makeinfo, OPTIONAL, 4.6)
if test "$optimise_b" = yes; then