[MacPorts] #62678: netcdf 4.8.0: update fails after libstdc++ headers not found

[MacPorts]

#62678: netcdf 4.8.0: update fails after libstdc++ headers not found
---------------------------+----------------------
  Reporter:  thiagoveloso  |      Owner:  tenomoto
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.6.4
Resolution:                |   Keywords:
      Port:  netcdf        |
---------------------------+----------------------

Comment (by kencu):

 Well I think it is your MacPorts configuration...I'm not sure how you
 would get {{{-stdlib=libstdc++}}} into your CXXFLAGS otherwise:
 {{{
 debug:configure CXXFLAGS='-pipe -Os -stdlib=libstdc++
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
 }}}

 can you show us the output of this command?:
 {{{
 $ diff -u /opt/local/etc/macports/macports.conf.default
 /opt/local/etc/macports/macports.conf
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/62678#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS