FYI, the link on the FAQ (via the mailing list) to the gnulib 'quick hack' seems to be broken. It might also be added that it is possible to update the in-tree gnulib by:- - downloading the latest gnulib (which is a checkout of head from GNU savannah, grrr, so there's no checksums or signatures, and the tarball changes on every get) - cd'ing to the parent folder containing the in-tree gnulib 'm4' and 'lib' - running /gnulib-tool --add-import This works for compiling m4 Raph Raphael Cohn Chief Architect, stormmq Co-Chair, OASIS MQTT Standard Secretary, OASIS AMQP Standard raphael.cohn@stormmq.com +44 7590 675 756 UK Office: Hamblethorpe Farm, Crag Lane, Bradley BD20 9DB, North Yorkshire, United Kingdom Telephone: +44 845 3712 567 Registered office: 16 Anchor Street, Chelmsford, Essex, CM2 0JY, United Kingdom StormMQ Limited is Registered in England and Wales under Company Number 07175657 StormMQ.com