Disable C++ extensions by default.
Disable C++ extensions by default.

basvodde/cpputest,basvodde/cpputest,offa/cpputest,offa/cpputest,cpputest/cpputest,cpputest/cpputest,offa/cpputest,basvodde/cpputest,offa/cpputest,cpputest/cpputest,cpputest/cpputest,basvodde/cpputest