[MacPorts] #62023: python39 @3.9.1 does not build universal on BigSur

[MacPorts]

#62023: python39 @3.9.1 does not build universal on BigSur
-----------------------+------------------------------
  Reporter:  kencu     |      Owner:  jmroot
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  BigSur universal
      Port:  python39  |
-----------------------+------------------------------

Comment (by kencu):

 (sidebar) during work on this, I see this issue:
 {{{
 /usr/bin/clang -bundle -undefined dynamic_lookup -arch arm64 -arch x86_64
 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX11.1.sdk
 -L/opt/local/lib -Wl,-headerpad_max_install_names
 -Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX11.1.sdk
 -arch arm64 -arch x86_64
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/_ctypes.o
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/callbacks.o
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/callproc.o
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/cfield.o
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/malloc_closure.o
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/stgdict.o
 -L/opt/local/lib -lffi -ldl -o
 build/lib.macosx-11.1-x86_64-3.9/_ctypes.cpython-39-darwin.so
 ld: warning: ignoring file
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/callbacks.o,
 building for macOS-arm64 but attempting to link with file built for
 unknown-x86_64
 ld: warning: ignoring file
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/_ctypes.o,
 building for macOS-arm64 but attempting to link with file built for
 unknown-x86_64
 ld: warning: ignoring file
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/callproc.o,
 building for macOS-arm64 but attempting to link with file built for
 unknown-x86_64
 ld: warning: ignoring file
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/cfield.o,
 building for macOS-arm64 but attempting to link with file built for
 unknown-x86_64
 ld: warning: ignoring file
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/malloc_closure.o,
 building for macOS-arm64 but attempting to link with file built for
 unknown-x86_64
 ld: warning: ignoring file
 build/temp.macosx-11.1-x86_64-3.9/opt/local/var/macports/build/_opt_myports_lang_python39/python39/work/Python-3.9.1/Modules/_ctypes/stgdict.o,
 building for macOS-arm64 but attempting to link with file built for
 unknown-x86_64
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/62023#comment:3>
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