hack for anyGenerator->AnyGenerator rename

CryptoSwift/BytesSequence.swift

@@ -6,6 +6,15 @@
 //  Copyright © 2015 Marcin Krzyzanowski. All rights reserved.
 //
 
+//TODO: func anyGenerator is renamed to AnyGenerator in Swift 2.2, until then it's just dirty hack for linux (because swift >= 2.2 is available for Linux)
+private func CS_AnyGenerator<Element>(body: () -> Element?) -> AnyGenerator<Element> {
+#if os(Linux)
+    return AnyGenerator(body: body)
+#else
+    return anyGenerator(body)
+#endif
+}
+
 struct BytesSequence: SequenceType {
     let chunkSize: Int
     let data: [UInt8]
@@ -14,7 +23,7 @@ struct BytesSequence: SequenceType {
         
         var offset:Int = 0
         
-        return anyGenerator {
+        return CS_AnyGenerator {
             let end = min(self.chunkSize, self.data.count - offset)
             let result = self.data[offset..<offset + end]
             offset += result.count