[MacPorts] #60987: meson: not finding pkg-config when building universal when using cross-files

[MacPorts]

#60987: meson: not finding pkg-config when building universal when using cross-
files
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  Reporter:  kencu           |      Owner:  (none)
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:
      Port:  meson graphene  |
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Comment (by Gcenx):

 Yes

 When {{{allow_default_for_cross=False}}} is set, pkg-config and friends
 are never found when using a crossfile, setting
 {{{allow_default_for_cross=True}}} pkg-config and friends are found as
 long as host and target match. If target and host don’t match then pkg-
 config and friends won’t be found.

 To clarify setting {{{allow_default_for_cross=True}}} restore the prior
 behavior from meson.

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Ticket URL: <https://trac.macports.org/ticket/60987#comment:28>
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