This command specifies compiler choices to make use of when compiling a given goal. These choices are added to the compile line after choices added by `CMAKE_CXX_FLAGS` or `CMAKE_C_FLAGS` variable or the corresponding goal properties. For instance, `target_compile_options(my_target PRIVATE /WX)` would add the `/WX` flag, enabling warnings as errors, particularly for the compilation of `my_target`. Choices might be specified as `PRIVATE`, `PUBLIC`, or `INTERFACE` to regulate how they propagate to dependent targets.
Specifying compiler flags on a per-target foundation presents important benefits over globally modifying flags. This granular management permits builders to fine-tune compilation settings for particular person elements, guaranteeing optimum code era and conduct with out unintended unwanted side effects on different components of the venture. This apply turns into significantly essential in massive tasks with various codebases and dependencies. Traditionally, managing compiler flags was usually accomplished globally, resulting in potential conflicts and difficult-to-maintain construct configurations. The introduction of per-target management marked a big enchancment in CMake’s skill to deal with advanced venture buildings and promote extra sturdy builds.
