kc3-lang/SDL

2022-08-30T00:50:44

CMake: Make SDL_SHARED/STATIC/TEST options This makes it easier to set these options when SDL is used as a subprojects. Since CMake v3.13+, one can simply `set(SDL_TEST OFF)` before include the SDL2 subproject because options do not override existing variables. (https://cmake.org/cmake/help/latest/policy/CMP0077.html#policy:CMP0077) This is also true for `set(CACHE)` commands but only in CMake v3.21+ (https://cmake.org/cmake/help/latest/policy/CMP0126.html).