[MacPorts] #67509: Building lame on Tiger fails as the SDK name is incorrect

[MacPorts]

#67509: Building lame on Tiger fails as the SDK name is incorrect
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  Reporter:  RealKGB  |      Owner:  barracuda156
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.8.1
Resolution:           |   Keywords:  tiger
      Port:  lame     |
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Comment (by barracuda156):

 Replying to [comment:1 kencu]:
 > In Tiger, the SDK name is different than all other systems…. there is a
 “u” in it.
 >
 > The commit needs to be rejigged to account for this.

 I know that, but I though `macosx_sdk_version` already picks the correct
 name.

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Ticket URL: <https://trac.macports.org/ticket/67509#comment:7>
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