Hi David Thanks for your reply – can you explain what is the different building from git clone and from tar balls. I have never used git clone. Is github a development build whereas tar balls are stable release builds? --Wai This email does not create a legal relationship between any member of the Crédit Agricole group and the recipient or constitute investment advice. The content of this email (including any attachments) is intended solely for the addressee and access by any other person is not authorised. It may contain information which is confidential, privileged or otherwise protected from disclosure. If you are not the intended recipient of this email, (i) you should send it back to us and delete it from your system, and (ii) you are prohibited from retaining, distributing, disclosing or using (in whole or part) any of its content. Email communication may be logged and archived, monitored and/or disclosed to third parties. Crédit Agricole Corporate and Investment Bank is authorised by the Autorité de Contrôle Prudentiel et de Résolution (ACPR) and supervised by the ACPR and the Autorité des Marchés Financiers (AMF) in France and subject to limited regulation by the Financial Conduct Authority and the Prudential Regulation Authority. Details about the extent of our regulation by the Financial Conduct Authority and the Prudential Regulation Authority are available from us on request. Crédit Agricole Corporate and Investment Bank is incorporated in France with limited liability and registered in England and Wales. Registration number: FC008194. Registered office: Broadwalk House, 5 Appold Street, London, EC2A 2DA Please refer to http://www.ca-cib.com/group-overview/dodd-frank-otc-derivatives.htm for any Dodd-Frank Disclosure for U.S. Persons pursuant to CFTC Regulation 23.431