[MacPorts] #62337: go @1.16 fails to build on el capitan

[MacPorts]

#62337: go @1.16 fails to build on el capitan
------------------------+--------------------
 Reporter:  jrquinello  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.6.4
 Keywords:  go          |       Port:
------------------------+--------------------
 go @1.16 fails to build on el capitan

-- 
Ticket URL: <https://trac.macports.org/ticket/62337>
MacPorts <https://www.macports.org/>
Ports system for macOS