CMake is a build system generator (it's not a build system per definition). We use modern CMake which refers in our case to CMake 3.12 and above.
DO NOT use link_libraries() or include_directories() without a target_
prefix. Modern CMake is target based.
These talks give a good introduction into modern CMake:
- CppCon 2017: Mathieu Ropert “Using Modern CMake Patterns to Enforce a Good Modular Design”
- C++Now 2017: Daniel Pfeifer “Effective CMake"
I beg of you: Don't follow tutorials that only require CMake >= 2.8. You'll only learn outdated CMake and it will not be fun. You will hate CMake. Target based CMake is way easier. :-)
If you find projects that manage their sources using a global PROJECT_SRC
variable, it's outdated!