[MacPorts] #58199: cmake: build failure on OSX 10.11 due to LegacySupport PortGroup

[MacPorts]

#58199: cmake: build failure on OSX 10.11 due to LegacySupport PortGroup
---------------------+-----------------------
  Reporter:  dbl001  |      Owner:  michaelld
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.5.4
Resolution:          |   Keywords:
      Port:  cmake   |
---------------------+-----------------------

Comment (by deldotvee):

 Yes this fix has worked for me. My Xcode is 8.2.1

-- 
Ticket URL: <https://trac.macports.org/ticket/58199#comment:36>
MacPorts <https://www.macports.org/>
Ports system for macOS