[MacPorts] #53016: octave @4.2.0_1 build failure

[MacPorts]

#53016: octave @4.2.0_1 build failure
-------------------------+---------------------------------
  Reporter:  ryandesign  |      Owner:  MarcusCalhoun-Lopez
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.99
Resolution:              |   Keywords:
      Port:  octave      |
-------------------------+---------------------------------

Comment (by ryandesign):

 Thanks for the pointer. Indeed the config.log says:

 {{{
 dyld: Library not loaded: /opt/local/lib/libgcc/libgfortran.3.dylib
   Referenced from: /opt/local/lib/libarpack.2.dylib
   Reason: image not found
 ./configure: line 3803: 95270 Trace/BPT trap: 5       ./conftest$ac_exeext
 }}}

 I am using libgcc-devel @7-20161204, and it provides libgfortran.4.dylib
 instead of libgfortran.3.dylib. So I guess once gcc7 becomes stable and
 libgcc is updated to that version, we'll have to revbump anything linking
 with libgfortran.3.dylib.

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Ticket URL: <https://trac.macports.org/ticket/53016#comment:2>
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