[MacPorts] #47437: freeling: remove icu dependency

[MacPorts]

#47437: freeling: remove icu dependency
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 Reporter:  ryandesign@…  |      Owner:  stromnov@…
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.3.99
 Keywords:                |       Port:  freeling
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 freeling declares a library dependency on icu, but it doesn't seem to
 actually be used. freeling's configure script does check for the presence
 of the icuuc library, but doesn't seem to do anything with it. The files
 installed by freeling do not link with any icu library. It does link with
 boost libraries, and boost does link with and declare a library dependency
 on icu, so icu will definitely be present when freeling is being built,
 but the library dependency on icu declared in the freeling port made me
 think I would need to increase the revision of freeling when I update icu
 to a new version, which seems not to be the case after all.

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Ticket URL: <https://trac.macports.org/ticket/47437>
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