travis: OCCT 7.5.1 uses [[nodiscard]] that is a C++17 feature. To avoid to get tons of warnings because of -Wpedantic the clang build should use C++17, too
travis: OCCT 7.5.1 uses [[nodiscard]] that is a C++17 feature.
To avoid to get tons of warnings because of -Wpedantic the clang build should use C++17, too

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master