[MacPorts] #66039: lzma not building on macOS 12 when targeting 10.12 (was: lzma not building)

[MacPorts]

#66039: lzma not building on macOS 12 when targeting 10.12
---------------------+------------------------
  Reporter:  lukaso  |      Owner:  ryandesign
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  lzma    |
---------------------+------------------------

Comment (by jmroot):

 `legacysupport.newest_darwin_requires_legacy` appears to only be compared
 against the current OS version; legacysupport doesn't have support for
 using older deployment targets and SDKs.

-- 
Ticket URL: <https://trac.macports.org/ticket/66039#comment:4>
MacPorts <https://www.macports.org/>
Ports system for macOS