[MacPorts] #60340: gfortran library not found in building demeter

[MacPorts]

#60340: gfortran library not found in building demeter
-----------------------+-----------------------
  Reporter:  paulfons  |      Owner:  joefowler
      Type:  defect    |     Status:  reopened
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.2
Resolution:            |   Keywords:
      Port:  demeter   |
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Comment (by reneeotten):

 it doesn't build for me on 10.14 either. Looking at the logs, it appears
 the the compilation flags used are the ones from the {{{ifeffit}}} port.
 So if there is something wrong with those, the underlying issue could be
 in that port instead. I looked a bit yesterday, but am afraid I lack the
 knowledge for fixing this...

 {{{
   6985 :info:build Ifeffit's installations directory is
 /opt/local/share/ifeffit
   6986 :info:build     (found by capturing `ifeffit -i`)
   6987 :info:build Compilation flags (from
 /opt/local/share/ifeffit/config/Config.mak):
   6988 :info:build      -L/opt/local/lib -lifeffit  -L/opt/local/lib
 -lpgplot -lpng -lX11  -L/opt/local/lib -L/opt/local/lib/gcc9/gcc/x86_64
 -apple-darwin19/9.2.0 -L/opt/local/lib/gcc9/gcc/x86_64-apple-
 darwin19/9.2.0/../../.. -lgfortran -lSystem -lgcc_ext.10.5 -lquadmath -lm
 }}}

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Ticket URL: <https://trac.macports.org/ticket/60340#comment:10>
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