[MacPorts] #58350: libxml2 @2.9.9: Incorrect ICU include search paths, related to #57990

[MacPorts]

#58350: libxml2 @2.9.9: Incorrect ICU include search paths, related to #57990
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  Reporter:  AndyWharton  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.5.4
Resolution:               |   Keywords:
      Port:  libxml2      |
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Comment (by AndyWharton):

 The fix appears to be removing the hard coded paths, and updating
 libxml-2.0.pc to return the additional compile time requirement in the
 --ccflags.

 I will poke around to see if this is safe based on the include files that
 libxml2 can pick up, and make these changes if that'll help... I'm unsure
 how to go about updating the content for libxml-2.0.pc though. I will hunt
 for an example, and update that as well if I can.

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Ticket URL: <https://trac.macports.org/ticket/58350#comment:3>
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