[MacPorts] #70481: curl @8.9.1: again pulls in a dependency on a newer gcc compiler, which makes bootstrapping problematic

[MacPorts]

#70481: curl @8.9.1: again pulls in a dependency on a newer gcc compiler, which
makes bootstrapping problematic
----------------------------+------------------------
  Reporter:  barracuda156   |      Owner:  ryandesign
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.9.3
Resolution:                 |   Keywords:  powerpc
      Port:  curl, nghttp2  |
----------------------------+------------------------

Comment (by barracuda156):

 Replying to [comment:7 ryandesign]:

 This will be perfectly fine. `zlib` is certainly not a problem, `brotli`
 would be nice to have in a variant, since it needs `cmake-bootstrap`. (And
 it is indeed hardly justified to make a special `bootstrap` variant, when
 problematic components can be disabled directly via their variants.)

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Ticket URL: <https://trac.macports.org/ticket/70481#comment:8>
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