swift5 & Xcode 10.2

[ghost]

changes in code and project settings for building the project on Xcode 10.2 with swift5

[Shasoosh]

This chunk of code doesn't work:

func verify(_ input : Data, signature : Data) -> Bool {
        let signedDataHash = Data(referencing: (input as NSData).digest(withSize: self.hashFunction.rawValue))
        let padding = paddingForHashFunction(self.hashFunction)
        let result: OSStatus = signature.withUnsafeBytes { (signatureRawPointer: UnsafeRawBufferPointer) in
            signedDataHash.withUnsafeBytes { (signedHashRawPointer: UnsafeRawBufferPointer) in
                guard let signtureAddress = signatureRawPointer.baseAddress, signatureRawPointer.count > 0,
                    let hashAddress = signedHashRawPointer.baseAddress, signedHashRawPointer.count > 0  else {
                        return -4 // OSStatus.errSecUnimplemented
                }
                return SecKeyRawVerify(
                    key.value,
                    padding,
                    signtureAddress.assumingMemoryBound(to: UInt8.self),
                    signedDataHash.count,
                    hashAddress.assumingMemoryBound(to: UInt8.self),
                    signature.count
                )
            }
        }
        switch result {
        case errSecSuccess:
            return true
        default:
            return false
        }
    }

I haven't had time to investigate this but the committed method above causes JWT verification to fail.