[MacPorts] #61242: f2c: fix compilation

[MacPorts]

#61242: f2c: fix compilation
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  Reporter:  DanielO  |      Owner:  ryandesign
      Type:  defect   |     Status:  accepted
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  haspatch
      Port:  f2c      |
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Comment (by DanielO):

 Yes, I actually thought there were other errors also but perhaps those
 were just warnings. Basically I saw a lot of compiler complaints and
 decided the big hammer would be fine.

 If fixing that one error makes it build then I think that is satisfactory
 - thanks.

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Ticket URL: <https://trac.macports.org/ticket/61242#comment:4>
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