[MacPorts] #62878: openmpi: fix builds for MacOS 10.8 and earlier, by disabling use of AVX instruction set; mark known_fail, for cases not easily fixable

[MacPorts]

#62878: openmpi: fix builds for MacOS 10.8 and earlier, by disabling use of AVX
instruction set; mark known_fail, for cases not easily fixable
----------------------+----------------------
  Reporter:  jmroot   |      Owner:  mascguy
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  openmpi  |
----------------------+----------------------

Comment (by mascguy):

 Replying to [comment:13 kencu]:
 > Don't worry about the clang-9.0 install. It's the defacto system
 compiler for MacPorts on all older systems, and all Intel users on almost
 all systems  older than 10.12 or so will have it installed already.

 Sounds good Ken. Once the buildbots are caught up, I'll update openmpi to
 use clang-9.0 on MacOS 10.8 and earlier, and re-enable AVX instruction
 use.

-- 
Ticket URL: <https://trac.macports.org/ticket/62878#comment:14>
MacPorts <https://www.macports.org/>
Ports system for macOS