[MacPorts] #74321: libpsl-0.23.2 fails to configure on macOS 26.6.1

[MacPorts]

#74321: libpsl-0.23.2 fails to configure on macOS 26.6.1
---------------------+--------------------
  Reporter:  dmwco   |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.12.5
Resolution:          |   Keywords:  libpsl
      Port:  libpsl  |
---------------------+--------------------

Comment (by Dave-Allured):

 From config.log, I think this is the relevant message near the end:
 {{{
 configure:20508: checking for pkg-config
 configure:20531: found /opt/local/bin/pkg-config
 configure:20544: result: /opt/local/bin/pkg-config
 configure:20569: checking pkg-config is at least version 0.9.0
 configure:20575: result: no
 configure:20581: error: pkg-config not found
 }}}

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Ticket URL: <https://trac.macports.org/ticket/74321#comment:1>
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