[cc65] ld65 expressions?

I remember some talk about expressions in the ld65 config files, but I
couldn't find anything definitive in the mailing list archive. Did you
add cfg file expressions? If so, how do you use them?

-- 
    ___          .     .  .         .       . +  .         .      o   
  _|___|_   +   .  +     .     +         .  Per Olofsson, arkadspelare
    o-o    .      .     .   o         +          MagerValp@cling.gu.se
     -       +            +    .     http://www.cling.gu.se/~cl3polof/
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