[MacPorts] #69119: boost: enable static libraries by default

[MacPorts]

#69119: boost: enable static libraries by default
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  Reporter:  mohd-akram                          |      Owner:  (none)
      Type:  enhancement                         |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  boost169, boost171, boost176,       |
  boost178, boost181                             |
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Comment (by mohd-akram):

 Thanks for pointing to dylibbundler, that should come in handy. Static
 builds are becoming more popular due to newer languages such as Go and
 Rust, where the expectation is a single binary that you can drop into
 /usr/local/bin, or anywhere else. But I think the simpler reason for me is
 that things should "just work" as much as possible. In this case, the
 project I was building used CMake and the `Boost_USE_STATIC_LIBS` flag
 that's in turn read by `FindBoost.cmake`, which comes with CMake. Yet,
 while both CMake and Boost in this case are provided by MacPorts and the
 project uses a standard and supported build flag, the build fails with a
 cryptic error that it can't "find" Boost, when really it can't find the
 static version. So I think if a port naturally supports building both
 dynamic and static libraries, and there is sanctioned use of the static
 versions in the ecosystem, we should support that.

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Ticket URL: <https://trac.macports.org/ticket/69119#comment:5>
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