[MacPorts] #48129: Install qt4-mac on OSX El Capitan returned: unsupported platform

[MacPorts]

#48129: Install qt4-mac on OSX El Capitan returned: unsupported platform
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  Reporter:  SAssadi@…  |      Owner:  michaelld@…
      Type:  defect     |     Status:  new
  Priority:  Low        |  Milestone:
 Component:  ports      |    Version:  2.3.3
Resolution:             |   Keywords:  elcapitan
      Port:  qt4-mac    |
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Comment (by michaelld@…):

 Well I -finally- got 10.11 installed Monday & started installing
 everything I generally use using Xcode 7.0.1. I didn't install anything
 special, just the CLTs. When I try the patch, building still fails in the
 same way as without it. I'm guessing one has to have the 10.10SDK
 installed for "macosx_deployment_target 10.10" to work. Looking at the
 log, it is set correctly and being used during the build. Sigh. I had
 really hoped this change would "just work". So, now back to backporting
 some Qt5 changes for these issues. Fun times ahead!

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Ticket URL: <https://trac.macports.org/ticket/48129#comment:19>
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