The code for this recipe is available at https://github.com/dev-cafe/cmake-cookbook/tree/v1.0/chapter-05/recipe-07 and has a C++ example. The recipe is valid with CMake version 3.5 (and higher) and has been tested on GNU/Linux, macOS, and Windows.
Setting compiler flags is critical to make sure that your code is compiled correctly. Different compiler vendors implement different flags for similar tasks. Even different compiler versions from the same vendor might present slight differences in the available flags. Sometimes, new flags are introduced that are extremely convenient to use for debugging or optimization purposes. In this recipe, we will show how to check that certain flags are available for the selected compiler.
