This is just FYI.

In message <200003172329.KAA07769@balrog.supp.cpr.itg.telecom.com.au>
	on Sat, 18 Mar 2000 10:29:49 +1100,
	Simon Burge <simonb@netbsd.org> wrote:
> problem (but it's untested for c++ lexers).  If you've rebuilt lex in
> the last two days, you may want to "make clean" in src/lib/libc, or
> manually remove the generated nslexer.c in your libc obj directory.
The same problem exists in /usr/src/usr.bin/fgen.

--
Takahiro Kambe <taca@sky.yamashina.kyoto.jp>