[MacPorts] #55705: Add +llvm60 to cctools and ld64

[MacPorts]

#55705: Add +llvm60 to cctools and ld64
----------------------------+----------------------
  Reporter:  gaming-hacker  |      Owner:  jeremyhu
      Type:  enhancement    |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.4.2
Resolution:                 |   Keywords:
      Port:  cctools,ld64   |
----------------------------+----------------------

Comment (by jeremyhu):

 No, I'm leaving this open unil I finish qualifying.

--
Ticket URL: <https://trac.macports.org/ticket/55705#comment:7>
MacPorts <https://www.macports.org/>
Ports system for macOS