Seems it just won’t work, missing libs and frameworks (listed in phoenix.pro) such as
LIBS += /usr/lib/libz.dylib
LIBS += /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
LIBS += /System/Library/Frameworks/Carbon.framework/Carbon
LIBS += /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
it seems that these libs and frameworks are all cached elsewhere (virtual?)
I understand that some of the frameworks are now virtual (not on disk) but I have no idea how to address them.
I have even tried adding an older sdk to Xcode but that doesn’t work either, Xcode seems to ignore it and It cannot be selected as it only shows the current sdk