[MacPorts] #70419: libcryptopp: provide pkgconfig file

[MacPorts]

#70419: libcryptopp: provide pkgconfig file
---------------------------+------------------------
  Reporter:  barracuda156  |      Owner:  raphael-st
      Type:  enhancement   |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.9.3
Resolution:                |   Keywords:
      Port:  libcryptopp   |
---------------------------+------------------------

Comment (by jmroot):

 Looks like `libcryptopp.pc` is a separate makefile target, so appending
 that to `build.target` should cause it to be built.

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Ticket URL: <https://trac.macports.org/ticket/70419#comment:1>
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