[MacPorts] #54985: clang-3.9 @3.9.1_6 wrappers broken at least with Snow Leopard/Xcode 3.2.6

[MacPorts]

#54985: clang-3.9 @3.9.1_6 wrappers broken at least with Snow Leopard/Xcode 3.2.6
------------------------+----------------------
  Reporter:  rlhamil    |      Owner:  kencu
      Type:  defect     |     Status:  reopened
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.1
Resolution:             |   Keywords:
      Port:  clang-3.9  |
------------------------+----------------------

Comment (by kencu):

 Oh oh. gcc6 on your LibcxxOnOlderSystems setup will link all your c++
 ports against the wrong standard library. That is a no-no, I'm afraid.

 If you can, you should roll back anything gcc6 just updated, uninstall the
 gcc6-built stuff, and build it with clang-3.7 or clang-3.8, or fix the
 wrapper on clang-3.9, or hide xcrun as gnw3 said -- any one of those
 options will work correctly.

--
Ticket URL: <https://trac.macports.org/ticket/54985#comment:22>
MacPorts <https://www.macports.org/>
Ports system for macOS