[MacPorts] #72239: emacs-app: error: expected a type

[MacPorts]

#72239: emacs-app: error: expected a type
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  Reporter:  rmottola   |      Owner:  drkp
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  mavericks
      Port:  emacs-app  |
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Comment (by ryandesign):

 Perhaps all of the above. Nullability is a Swift language feature that was
 brought back to Objective-C in Xcode 6.3. It likely includes both changes
 in Clang to support this feature and changes in the SDK to make use of it.
 See [https://developer.apple.com/swift/blog/?id=25 Nullability and
 Objective-C].

 You didn't attach a main.log or indicate your Xcode version but according
 to XcodeVersionInfo, Xcode 6.3 requires OS X 10.10 or later and you said
 you're on 10.9 so you must have an earlier Xcode version than that.

 You didn't show enough of the log to see whether the Clang that was used
 came from Xcode or MacPorts. Using a newer Clang from MacPorts likely
 gives you nullability support, but I'm not sure if the code will compile
 against an older pre-nullability SDK.

 Your patch is likely wrong for newer compilers and SDKs that support
 nullability so I do not recommend applying it to newer compilers or SDKs.
 I also don't know whether it is correct for older compilers or SDKs. I
 recommend reporting the problem to the developers of emacs-app so they can
 decide how or if to fix it.

-- 
Ticket URL: <https://trac.macports.org/ticket/72239#comment:3>
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