[MacPorts] #66627: ghostscript fails to configure with universal variant

[MacPorts]

#66627: ghostscript fails to configure with universal variant
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  Reporter:  MichaelGDev48  |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.8.99
Resolution:                 |   Keywords:
      Port:  ghostscript    |
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Comment (by kencu):

 and yes indeedy, this fixes things in a proper way:

 {{{
 # tell ghostscript it's OK to use the system pkg-config even when cross-
 compiling
 configure.env-append PKGCONFIG=${prefix}/bin/pkg-config
 }}}

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Ticket URL: <https://trac.macports.org/ticket/66627#comment:8>
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