[MacPorts] #52705: libpng: configure fails with "C compiler cannot create executables"

[MacPorts]

#52705: libpng: configure fails with "C compiler cannot create executables"
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  Reporter:  DGDanforth  |      Owner:  ryandesign
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.4
Resolution:  invalid     |   Keywords:
      Port:  libpng      |
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Changes (by ryandesign):

 * status:  assigned => closed
 * resolution:   => invalid


Comment:

 You said you're running on Lion with Xcode 4.6.3, but the log also shows
 that you are using the clang-70 compiler, which is the version of clang
 that came with Xcode 3.2.5 which is not compatible with Lion. Please
 install the Xcode 4.6.3 version of the command line tools.

 Following the instructions at LibcxxOnOlderSystems is drastic and I don't
 recommend it at this time, unless you need a port that can't be installed
 without it.

 If you're having trouble using this Trac web site on your Mac, try Option-
 clicking the reload button to clear out cached content. We recently
 upgraded to a new version of Trac and if you visited our Trac before that,
 old versions of files might still be cached and causing problems.

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Ticket URL: <https://trac.macports.org/ticket/52705#comment:6>
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