The code for this recipe is available at https://github.com/dev-cafe/cmake-cookbook/tree/v1.0/chapter-01/recipe-09 and has a C++ and Fortran example. The recipe is valid with CMake version 3.5 (and higher) and has been tested on GNU/Linux, macOS, and Windows.
Programming languages have different standards available, that is, different versions that offer new and improved language constructs. Enabling new standards is accomplished by setting the appropriate compiler flag. We have shown in the previous recipe how this can be done, either on a per-target basis or globally. With its 3.1 version, CMake introduced a platform- and compiler-independent mechanism for setting the language standard for C++ and C: setting the <LANG>_STANDARD property for targets.
