[MacPorts] #63038: clang12: please re-enable the +analyzer as a default variant

[MacPorts]

#63038: clang12: please re-enable the +analyzer as a default variant
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  Reporter:  mouse07410  |      Owner:  kencu
      Type:  request     |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  clang-12    |
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Comment (by szhorvat):

 I will add my "+1" to this. I would also like to have the `+anayzer` by
 default. Building all of clang-12 takes a very, very long time on my
 laptop (didn't measure but I think it was well over an hour). I can't do
 much else while it's compiling, and can't unplug the laptop.

 I also wanted to note that while `set-xcode-analyzer` is broken in Clang
 12 (for no fault of MacPorts), the analyzer is probably not used through
 Xcode by most people. It is used through the `scan-build` script, which
 works fine (mostly, see #63047).

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Ticket URL: <https://trac.macports.org/ticket/63038#comment:12>
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