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carthage update fails, compile error

Running carthage update fails due to a build problem. I'm running mac OS Sierra and XCode 9.2. Here's the build that goes wrong:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c -primary-file /Users/dan/Documents/XCode/Syncer/Syncer/Carthage/Checkouts/FileWatch/FileWatch/FileWatch.swift -target x86_64-apple-macosx10.9 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -I /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/BuildProductsPath/Release -F /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/BuildProductsPath/Release -g -module-cache-path /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/ModuleCache -swift-version 3 -serialize-debugging-options -report-errors-to-debugger -Xcc -I/Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/FileWatch-generated-files.hmap -Xcc -I/Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/FileWatch-own-target-headers.hmap -Xcc -I/Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/FileWatch-all-non-framework-target-headers.hmap -Xcc -ivfsoverlay -Xcc /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/all-product-headers.yaml -Xcc -iquote -Xcc /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/FileWatch-project-headers.hmap -Xcc -I/Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/BuildProductsPath/Release/include -Xcc -I/Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/DerivedSources/x86_64 -Xcc -I/Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/DerivedSources -Xcc -working-directory/Users/dan/Documents/XCode/Syncer/Syncer/Carthage/Checkouts/FileWatch -emit-module-doc-path /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/Objects-normal/x86_64/FileWatch~partial.swiftdoc -serialize-diagnostics-path /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/Objects-normal/x86_64/FileWatch.dia -O -parse-as-library -module-name FileWatch -emit-module-path /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/Objects-normal/x86_64/FileWatch~partial.swiftmodule -emit-dependencies-path /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/Objects-normal/x86_64/FileWatch.d -emit-reference-dependencies-path /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/Objects-normal/x86_64/FileWatch.swiftdeps -o /Users/dan/Library/Caches/org.carthage.CarthageKit/DerivedData/9.2_9C40b/FileWatch/0.0.1/Build/Intermediates.noindex/ArchiveIntermediates/FileWatch/IntermediateBuildFilesPath/FileWatch.build/Release/FileWatch.build/Objects-normal/x86_64/FileWatch.o

/Users/dan/Documents/XCode/Syncer/Syncer/Carthage/Checkouts/FileWatch/FileWatch/FileWatch.swift:138:64: error: C function pointer signature '(ConstFSEventStreamRef, UnsafeMutableRawPointer?, Int, UnsafeMutableRawPointer, UnsafePointer<FSEventStreamEventFlags>?, UnsafePointer<FSEventStreamEventId>?) -> Void' (aka '(OpaquePointer, Optional<UnsafeMutableRawPointer>, Int, UnsafeMutableRawPointer, Optional<UnsafePointer<UInt32>>, Optional<UnsafePointer<UInt64>>) -> ()') is not compatible with expected type 'FSEventStreamCallback' (aka '@convention(c) (OpaquePointer, Optional<UnsafeMutableRawPointer>, Int, UnsafeMutableRawPointer, UnsafePointer<UInt32>, UnsafePointer<UInt64>) -> ()')
    private static let StreamCallback: FSEventStreamCallback = {(streamRef: ConstFSEventStreamRef, clientCallBackInfo: UnsafeMutableRawPointer?, numEvents: Int, eventPaths: UnsafeMutableRawPointer, eventFlags: UnsafePointer<FSEventStreamEventFlags>?, eventIds: UnsafePointer<FSEventStreamEventId>?) -> Void in
                                                               ^

README update

The sample code in the README uses NSRunLoop.currentRunLoop(). This has since been renamed to RunLoop.current. Thanks!

Event callback not being fired

I copied the FileWatch.swift file into my app and using it to monitor folders on OSX 10.11.6. I start monitoring file system events without any errors but noticed the callback never gets called. My initial app was sandboxed, so thinking that could have something to do with it, I created a test app, copied the code in, without any changes, and got the same results. Callback events are not fired.

Also added the FileWatchTests file and run the tests; the testFileCreate test fails after the timeout, because the event callback is not called before timeout expires. Here's the test output

Test Suite 'Selected tests' started at 2016-12-09 00:00:10.505
Test Suite 'TodoListTests.xctest' started at 2016-12-09 00:00:10.506
Test Suite 'FileWatchTests' started at 2016-12-09 00:00:10.506
Test Case '-[TodoListTests.FileWatchTests testInitCreateFlag]' started.
Test Case '-[TodoListTests.FileWatchTests testInitCreateFlag]' passed (0.001 seconds).
Test Case '-[TodoListTests.FileWatchTests testFileCreate]' started.
file:///var/folders/hq/0bs9lngs3x79f31k1tndcxbm0000gn/T/AEE80BF5-A560-47C7-B8DD-F0E34BF69E31-75021-0002DAC9BBDDE8A4_file.txt
/************/TodoList/TodoListTests/FileWatchTests.swift:63: error: 
-[TodoListTests.FileWatchTests testFileCreate] : 
Asynchronous wait failed: Exceeded timeout of 10 seconds, with unfulfilled expectations: "".
Test Case '-[TodoListTests.FileWatchTests testFileCreate]' failed (10.171 seconds).
Test Suite 'FileWatchTests' failed at 2016-12-09 00:00:20.679.
 Executed 2 tests, with 1 failure (0 unexpected) in 10.172 (10.173) seconds
Test Suite 'TodoListTests.xctest' failed at 2016-12-09 00:00:20.680.
 Executed 2 tests, with 1 failure (0 unexpected) in 10.172 (10.174) seconds
Test Suite 'Selected tests' failed at 2016-12-09 00:00:20.680.
 Executed 2 tests, with 1 failure (0 unexpected) in 10.172 (10.175) seconds

Any ideas why this would happen?

Accessing variables outside the scope of the eventHandler scope

I cant reach any outside variable in this scope:

var temp:String = "test"
let filewatch = try! FileWatch(paths: ["/path/to/dir"],  createFlag: [.UseCFTypes, .FileEvents], runLoop: NSRunLoop.currentRunLoop(), latency: 3.0, eventHandler: { event in
   print(self.temp)//<---this doesn't work
    if event.flag.contains(.ItemIsFile) {
      debugPrint(event.path)
    }
})

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