[MacPorts] #57544: zstd @1.3.4: fails to compile for i386 on 10.6

[MacPorts]

#57544: zstd @1.3.4: fails to compile for i386 on 10.6
------------------------+------------------------
  Reporter:  LetterRip  |      Owner:  seanfarley
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.4
Resolution:             |   Keywords:
      Port:  zstd       |
------------------------+------------------------

Comment (by dbevans):

 @kencu, since you have a handle on what needs to be done, maybe a PR would
 be appropriate here.

-- 
Ticket URL: <https://trac.macports.org/ticket/57544#comment:6>
MacPorts <https://www.macports.org/>
Ports system for macOS