[MacPorts] #55702: openmpi:: add clang-6.0

[MacPorts]

#55702: openmpi:: add clang-6.0
-------------------------------+---------------------------
 Reporter:  gaming-hacker      |      Owner:
     Type:  update             |     Status:  new
 Priority:  Normal             |  Milestone:
Component:  guide              |    Version:  2.4.2
 Keywords:  openmpi,clang-6.0  |       Port:  openmpi-devel
-------------------------------+---------------------------
 updating ports to include clang-6.0 compiler so too short to submit a
 patch

 WAS:
 array set clist {

 ...
     clang50 {macports-clang-5.0}
 ...

 IS:
 array set clist {

 ...
     clang50 {macports-clang-5.0}

     clang60 {macports-clang-6.0}
 ...

--
Ticket URL: <https://trac.macports.org/ticket/55702>
MacPorts <https://www.macports.org/>
Ports system for macOS