ml.lex/ml.grm

I also have the problem that when I do a fresh make nj-mlton in src/mlton,
I get errors in the ml.lex and ml.grm produced files (I need to add in
some type int = Int.t declaration and change some strings to Char
vectors). Do I need to use the mlton version of ml-lex/yacc to produce
the right files?