Found this pecularity in config/inter/progs.pl. The lines should probably just be removed (as well as lex/bison in @args and elsewhere), since $yacc/$lex are specifically handled above, but I wasn't sure what the intended purpose was.
Anyway, giving --lex or --yacc arguments to Configure.pl will break
the build-process with these.
$cc_warn=$args{lex} if defined $args{lex};
$cc_warn=$args{yacc} if defined $args{yacc};
Cheers,
--
Lars Balker Rasmussen Consult::Perl
