[MacPorts] #62647: python39 @3.9.4_0+optimizations: fails to compile if macports llvm is selected

[MacPorts]

#62647: python39 @3.9.4_0+optimizations: fails to compile if macports llvm is
selected
--------------------------+----------------------
 Reporter:  hugo-ribeiro  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.6.4
 Keywords:                |       Port:  python39
--------------------------+----------------------
 python39 +optimizations fails to compile if one has set llvm to mp-llvm-11
 via

 {{{ port select llvm mp-llvm-11 }}}

 (it's the only version installed on my system so I couldn't try if this
 behavior is also true with earlier versions of llvm set as default).


 Setting

 {{{port select llvm none}}}

 solves the issue.

 I'm guessing that this is not the intended behavior and that the system
 llvm (/usr/bin/llvm) should be selected by default during the
 configuration phase.

-- 
Ticket URL: <https://trac.macports.org/ticket/62647>
MacPorts <https://www.macports.org/>
Ports system for macOS