[MacPorts] #44596: gmp @6.0.0_0: Autotools incorrectly selects "-undefined suppress" symbol lookup on Yosemite

[MacPorts]

#44596: gmp @6.0.0_0: Autotools incorrectly selects "-undefined suppress" symbol
lookup on Yosemite
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  Reporter:  wichert@…  |      Owner:  larryv@…
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  yosemite
      Port:  gmp        |
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Comment (by ryandesign@…):

 Replying to [comment:35 larryv@…]:
 > 1. We set the `MACOSX_DEPLOYMENT_TARGET` environment variable to
 “10.10”. (Homebrew doesn’t set it at all and thus doesn’t start down this
 road to perdition.)

 Ever since Mac OS X 10.5, the default value for `MACOSX_DEPLOYMENT_TARGET`
 is the currently running OS X version, so I would expect everyone else to
 be affected too.

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Ticket URL: <https://trac.macports.org/ticket/44596#comment:38>
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