[MacPorts] #62940: sqlitebrowser @ 3.12.2: Could not resolve SDK Path for 'macosx10.11'

[MacPorts]

#62940: sqlitebrowser @ 3.12.2: Could not resolve SDK Path for 'macosx10.11'
----------------------------+---------------------------------
  Reporter:  thetrial       |      Owner:  i0ntempest
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.7.0
Resolution:                 |   Keywords:  elcapitan legacy-os
      Port:  sqlitebrowser  |
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Comment (by thetrial):

 I’ve never downgraded Xcode yet. I even don’t know if this would not start
 other problems. Is there no other way or workaround? I don’t have version
 7, if I obtain it and deinstall, reinstall, this would interfere with lots
 of other things.

 This is the first time I see this problem. Why? The installations of
 sqlitebrowser worked before, with everything the same except macports
 (2.6.4) and sqlitebrowser itself.

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Ticket URL: <https://trac.macports.org/ticket/62940#comment:9>
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