[MacPorts] #50671: boost: Update to 1.60.0

[MacPorts]

#50671: boost: Update to 1.60.0
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  Reporter:  eborisch@…  |      Owner:  ryandesign@…
      Type:  update      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.4
Resolution:              |   Keywords:  haspatch
      Port:  boost       |
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Comment (by wuyongwei@…):

 Replying to [comment:13 ryandesign@…]:
 > Using static libraries would not solve the problem, it would just hide
 the problem until later. We don't want to do that either.

 There are two problems with new boost versions:

 1. A port may fail to compile with the new boost.
 2. A port may compile fine, but the binary compiled with the old boost
 version does not work with the new dylib.

 Static linking does not solve the first problem, but it will solve the
 second. Probably we still need to test other ports when there is a new
 boost version, but I do not think we need to bump the version of all other
 dependent ports and make new releases then.

-- 
Ticket URL: <https://trac.macports.org/ticket/50671#comment:14>
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