[MacPorts] #49316: R: compilers portgroup, two fixes

[MacPorts]

#49316: R: compilers portgroup, two fixes
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  Reporter:  dstrubbe@…   |      Owner:  kjell.konis@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.4
Resolution:               |   Keywords:  haspatch
      Port:  R            |
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Comment (by kjell.konis@…):

 Maintainer here. Duplicate of #49266. The default fortran compiler should
 be that provided by gcc48 to match the official CRAN binary of R, unless
 there's a good MacPorts reason not to. Otherwise good to go (built and
 tested with gcc48 and gcc5).

 Just out of curiosity, is this a situation where the port revision should
 be bumped?

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Ticket URL: <https://trac.macports.org/ticket/49316#comment:2>
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