[MacPorts] #42967: silo @4.9.1_0 Default to installing Fortran bindings if using Macports GCC

[MacPorts]

#42967: silo @4.9.1_0 Default to installing Fortran bindings if using Macports GCC
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 Reporter:  johnsonsr@…  |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.2.1
 Keywords:               |       Port:
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 If the Silo installation is being built with a Macports GCC installation,
 which includes the Fortran compiler, there is no good reason not to
 install the Fortran bindings. (Since this is in the "science" grouping,
 it's also reasonable to expect some users to need the fortran bindings.)

 I'm attaching a patch to add a +fortran variant and to enable +fortran by
 default if using +gcc45 through +gcc49.

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Ticket URL: <https://trac.macports.org/ticket/42967>
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