[MacPorts] #56577: Broken gcc7 port?

[MacPorts]

#56577: Broken gcc7 port?
---------------------------+----------------------------
  Reporter:  thiagoveloso  |      Owner:  (none)
      Type:  defect        |     Status:  closed
  Priority:  Normal        |  Milestone:  MacPorts 2.5.1
 Component:  base          |    Version:  2.5.0
Resolution:  fixed         |   Keywords:
      Port:  gcc7          |
---------------------------+----------------------------

Comment (by astroboylrx):

 I encountered a similar issue with mpich-gcc7 and openmpi-gcc7. This is
 MacPorts 2.5.2.

 {{{
 mpich-gcc7 is using libstdc++ (this installation is configured to use
 libc++)
 openmpi-gcc7 is using libstdc++ (this installation is configured to use
 libc++)
 --->  Found 2 broken ports, determining rebuild order
 }}}

 What should I do to fix this? Thanks in advance.

-- 
Ticket URL: <https://trac.macports.org/ticket/56577#comment:7>
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