On 10/02/2017 07:24 AM, Nikola Smiljanic wrote: > Thanks Brad, so setting CXX_EXTENSIONS to off will switch me to > 'standard' compliant mode? Yes. It can be done for all targets on creation by using the CMAKE_CXX_EXTENSIONS variable: https://cmake.org/cmake/help/v3.9/variable/CMAKE_CXX_EXTENSIONS.html -Brad