org-server 1.20.4 fails to build

While building xcode-server 1.20.4 using MacPorts I have run into the following error:


/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSEvent.h:250:29: note: 'NSApplicationActivatedEventType' has been explicitly marked deprecated here
:info:build static const NSEventSubtype NSApplicationActivatedEventType     API_DEPRECATED_WITH_REPLACEMENT("NSEventSubtypeApplicationActivated", macos(10.0,10.12)) = NSEventSubtypeApplicationActivated;
:info:build                             ^
:info:build X11Application.m:431:17: error: use of undeclared identifier '_appFlags'
:info:build                 _appFlags._active = YES;
:info:build                 ^
:info:build X11Application.m:476:14: warning: 'NSApplicationDeactivatedEventType' is deprecated: first deprecated in macOS 10.12 [-Wdeprecated-declarations]
:info:build         case NSApplicationDeactivatedEventType:
:info:build              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:info:build              NSEventSubtypeApplicationDeactivated

Full log: https://gist.github.com/Schamschula/fb360dda0581eba5f53f987574b43125


macOS 10.15 19A471t

Xcode 11.0 11M336w