[MacPorts] #62164: qemu @5.2.0: build failure with +cocoa

[MacPorts]

#62164: qemu @5.2.0: build failure with +cocoa
---------------------+-----------------------
  Reporter:  Ionic   |      Owner:  raimue
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  legacy-os
      Port:  qemu    |
---------------------+-----------------------

Comment (by jasonliu--):

 Replying to [comment:10 jmroot]:
 > Failing with a slightly different error as of 6.1:
 > {{{
 > ../qemu-6.1.0/ui/cocoa.m:1766:52: error: unknown type name
 'NSPasteboardTypeOwner'; did you mean 'NSPasteboardType'?
 > @interface QemuCocoaPasteboardTypeOwner :
 NSObject<NSPasteboardTypeOwner>
 >                                                    ^~~~~~~~~~~~~~~~~~~~~
 >                                                    NSPasteboardType
 >
 /System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:22:20:
 note: 'NSPasteboardType' declared here
 > typedef NSString * NSPasteboardType NS_EXTENSIBLE_STRING_ENUM;
 >                    ^
 > ../qemu-6.1.0/ui/cocoa.m:1766:43: error: type arguments cannot be
 applied to non-parameterized class 'NSObject'
 > @interface QemuCocoaPasteboardTypeOwner :
 NSObject<NSPasteboardTypeOwner>
 >                                           ^
 ~~~~~~~~~~~~~~~~~~~~~~~
 > 2 errors generated.
 > }}}
 >
 https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/122976/steps
 /install-port/logs/stdio
 >
 > I guess at minimum, +cocoa should not be on by default on <= 10.13, if
 it can't be fixed?

 Interestingly, I tried grepping for {{{NSPasteboardTypeOwner}}} in my copy
 of the 10.15 AppKit framework, and wasn't able to find it anywhere in the
 entire framework. However, Apple's own documentation clearly states that
 it is something that came into existence in AppKit starting in macOS
 10.14+:
 https://developer.apple.com/documentation/appkit/nspasteboardtypeowner, so
 I'm not really sure what's going on with that one.

-- 
Ticket URL: <https://trac.macports.org/ticket/62164#comment:13>
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