Re: Makefile -- Evaluate dependencies in order, don't consider it prerequisite?

[Paul D. Smith]

%% chessaurus@yahoo.com (Chess Saurus) writes:

  cs> I apologize if this is a little bit confusing.  I have read in the
  cs> gmake manual that there are "order-only-prerequisites", which are
  cs> almost perfect, except that I can't interleave their order with the
  cs> actual prerequisites.

  >> In that "correct" makefile you would simply change the banana
  >> prerequisite to be order-only and leave the rest:
  >> 
  >> apple.file : orange
  >> ...
  >> orange: | banana
  >> ...
  >> banana: pineapple
  >> ...
  >> pineapple:
  >> ...

  cs> Thanks for responding, and I think I understand your suggestion.  But
  cs> in the example you give here, if pineapple gets updated, I want
  cs> apple.file to be updated.  I think the fact that it is buried in the
  cs> tree under a "order-only" node will prevent this.

  cs> In other words, pineapple is a real prerequisite of apple.file
  cs> although banana is not.

Well, you can always use:

    apple.file: orange pineapple
        ...
    orange: | banana
        ...
    banana: pineapple
        ...
    pineapple:
        ...

-- 
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 Paul D. Smith <psmith@gnu.org>          Find some GNU make tips at:
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