[MacPorts] #62103: bwping @2.2 needs clock_gettime which is missing on macOS 10.11

[MacPorts]

#62103: bwping  @2.2  needs clock_gettime which is missing on macOS 10.11
------------------------+-----------------------------
  Reporter:  snowflake  |      Owner:  oleg-derevenetz
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.99
Resolution:             |   Keywords:
      Port:  bwping     |
------------------------+-----------------------------

Comment (by snowflake):

 After some research I discovered the ```legacysupport``` port group.

 Adding ```PortGroup legacysupport 1.0``` to the Portfile fixed the
 problem. Should I use the 1.1 version of this PortGroup?

-- 
Ticket URL: <https://trac.macports.org/ticket/62103#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS