[MacPorts] #62665: py39-matplotlib Compiles But does NOT Link Properly on Lion

[MacPorts]

#62665: py39-matplotlib Compiles But does NOT Link Properly on Lion
----------------------------+------------------------
  Reporter:  RobK88         |      Owner:  reneeotten
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.6.4
Resolution:                 |   Keywords:  Lion
      Port:  py-matplotlib  |
----------------------------+------------------------

Comment (by kencu):

 if you force a build with macports-clang-9.0, it'll probably work -- it
 defaults to {{{stdlib=libc++}}} on 10.7 because I changed them all to do
 that several years ago to get around this problem.

 But this port looks like it builds with /usr/bin/clang++ on 10.7 so that
 is likely why it's broken; that compiler defaults to libstdc++ if there is
 no other specification.

-- 
Ticket URL: <https://trac.macports.org/ticket/62665#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS