[MacPorts] #36203: hdf5-18: Variant openmpi conflicts with gcc45

[MacPorts]

#36203: hdf5-18: Variant openmpi conflicts with gcc45
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  Reporter:  smasson@…  |      Owner:  mmoll@…
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.1.2
Resolution:             |   Keywords:
      Port:  hdf5-18    |
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Comment (by eborisch@…):

 If you were using mpich2, I would say use 'port install mpich2 +gcc45' and
 then 'port install hdf5-18 +mpich2'; hdf5-18 now uses the selected mpi's
 wrappers, which, at least in mpich2's case, means that gcc45's CC, CXX,
 and fortran compilers will be used for compiling hdf5-18.

 The openmpi port currently uses only the fortran compiler from the
 requested +gccNN variant. If you would like that behavior to change,
 please file a separate ticket.  For these scientific packages, in my
 opinion, if the user is requesting a particular +gccNN variant, they are
 probably expecting/desiring that compiler's CC,CXX, and F90 to be used for
 everything (not just fortran), but that's just my point of view...

 Installing 'openmpi +gcc45' and then 'hdf5-18 +openmpi' will likely still
 work, but I haven't tried it myself.

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Ticket URL: <https://trac.macports.org/ticket/36203#comment:4>
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