[MacPorts] #62642: cmake 1.1 portgroup sets -DDEBUG for the +debug variant

[MacPorts]

#62642: cmake 1.1 portgroup sets -DDEBUG for the +debug variant
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  Reporter:  szhorvat  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  base      |    Version:  2.6.4
Resolution:            |   Keywords:
      Port:            |
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Comment (by RJVB):

 I don't know if you're referring to an official standard here, but a quick
 search on linux (`fgrep ' DEBUG' -R /usr/include`) shows that the `DEBUG`
 token isn't that uncommon as you seem to think. And that frankly stands to
 reason given that the explicit opposite (`NDEBUG`) is an apparently less
 disputed standard.

 I'm not in favour of changing this given that apparently it is an issue
 only now and only with a single port, not knowing how many users depend on
 the fact that `DEBUG` is being defined. If it weren't for that I'd
 probably concur with you that ports could add the token definition (and
 even then, most port maintainers are not also developers of the software
 provided by their port so you can't expect them to know this kind of
 detail).

 As it stands I'd say it's easier for ports where this definition does pose
 a problem to filter it out from the standard debug options set by +debug.
 That's not currently supported in the released version of the PG I see.
 I'll attach a patch that achieves this ASAP.

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Ticket URL: <https://trac.macports.org/ticket/62642#comment:2>
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