Re: [MacPorts] #68533: R-clock fails on 10.7–10.11: Symbol not found: __ZSt19uncaught_exceptionsv

[MacPorts]

#68533: R-clock fails on 10.7–10.11: Symbol not found: __ZSt19uncaught_exceptionsv
-------------------------+-------------------------------------------------
  Reporter:              |      Owner:  (none)
  barracuda156           |
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.8.1
Resolution:              |   Keywords:  lion, mountainlion, mavericks,
      Port:  R-clock     |  yosemite, elcapitan
-------------------------+-------------------------------------------------

Comment (by barracuda156):

 Replying to [comment:1 ryandesign]:
 > The failed 10.7–10.11 builds are using clang 16. It succeeds on 10.12
 and later using clang 16 and on Snow Leopard using clang 11. That makes me
 think it might be a libc++ issue that might be solved by using the legacy
 support portgroup's feature of using a newer MacPorts libc++.

 Same as in #67612

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Ticket URL: <https://trac.macports.org/ticket/68533#comment:2>
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