scanners and is a required dependency to update a number of ports.
Following analysis of bulk build and base build logs with this done as
an update to /usr/src/usr.bin/lex mostly over p2k9 it's clear this has
incompatibilities with existing scanners (including minor SUS breakage)
so at this time it's being imported as a port rather than updating base.
Port originally from Brad with some changes by myself (executable
file now named gflex, and use base m4 not GNU m4 - requires /usr/bin/m4
with -P support; 2009/10/14 or newer).
Discussed with and requested by many. ok ajacoutot, jasper, Brad.
