On Thu, May 11, 2017 at 11:33:21AM +0200, Wolfgang Marten wrote: > > What is to be done to make these compiler options work? > Install a version of the software that supports those options. 7.1 was just released. Try that. -- Steve 20170425 https://www.youtube.com/watch?v=VWUpyCsUKR4 20161221 https://www.youtube.com/watch?v=IbCHE-hONow