[MacPorts] #49266: R: use compiler portgroup to clean up variants

[MacPorts]

#49266: R: use compiler portgroup to clean up variants
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  Reporter:  sean@…       |      Owner:  kjell.konis@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  R            |
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Comment (by sean@…):

 Replying to [comment:2 kjell.konis@…]:
 > Maintainer here. I am happy with this change except that the default
 fortran compiler should be gfortran from gcc 4.8 (to match the official
 CRAN binary release). I wasn't able to find any documentation for
 compilers portgroup but my guess would be the compilers.setup line should
 be
 >
 > {{{
 > compilers.setup             require_fortran -gfortran -gcc48
 > }}}
 >
 > Also, don't forget to bump the revision number.

 Ok, I'll fix that up. Thanks for the review!

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Ticket URL: <https://trac.macports.org/ticket/49266#comment:3>
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