[MacPorts] #40417: arpack @3.1.3: remove openmpi from default variants

[MacPorts]

#40417: arpack @3.1.3: remove openmpi from default variants
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 Reporter:  takeshi@…  |      Owner:  mmoll@…
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.2.0
 Keywords:             |       Port:  arpack
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 A novice user reported a failure of octave-devel. I found that it was
 because of arpack. When installing octave-devel from scratch, a user
 implicitly or explicitly specifies one of the fortran compilers
 (g95/gcc4x). However, g95 or gcc4x variant conflicts with openmpi, which
 is one of the default variants.

 I assume that those who need PARPACK are power users. They can serially
 install openmpi with on of the fortran compilers, then arpack +openmpi and
 octave-devel with one of the fortran compilers.

 For those who just needs octave-devel, the serial installation would be a
 hurdle and it is difficult for them to understand why installation is
 unsuccessful. Therefore I suggest to remove openmpi from the default
 variants of arpack.

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Ticket URL: <https://trac.macports.org/ticket/40417>
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