[MacPorts] #71823: Port installs useless llvm-17 and clang-17 over and over again on macOS High Sierra, version 10.13.6

[MacPorts]

#71823: Port installs useless llvm-17 and clang-17 over and over again on macOS
High Sierra, version 10.13.6
------------------------+------------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.10.5
Resolution:             |   Keywords:  highsierra
      Port:  llvm-17    |
------------------------+------------------------

Comment (by ballapete):

 Replying to [comment:3 jmroot]:
 > So it's clearly a build-time only dependency. `port echo installed and
 'depends::clang-17(\s|$)'`

 This command does not work properly:

 {{{
 port echo installed and 'depends::python313(\s|$)'
 glib2                          @2.78.4_2+x11
 harfbuzz                       @10.2.0_0
 harfbuzz-icu                   @10.2.0_0
 libnetpbm                      @11.09.02_0
 libomp                         @19.1.6_0
 netpbm                         @11.09.02_0+x11
 ninja                          @1.12.1_1
 rust                           @1.84.0_0
 xorg-libxcb                    @1.17.0_0+python312
 xorg-xcb-proto                 @1.17.0_0+python312
 }}}

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Ticket URL: <https://trac.macports.org/ticket/71823#comment:7>
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