How to set warning level in CMake?
In modern CMake, the following works well: if(MSVC) target_compile_options(${TARGET_NAME} PRIVATE /W4 /WX) else() target_compile_options(${TARGET_NAME} PRIVATE -Wall -Wextra -Wpedantic -Werror) endif() My colleague suggested an alternative version: target_compile_options(${TARGET_NAME} PRIVATE $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX> $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-Wall -Wextra -Wpedantic -Werror> ) Replace ${TARGET_NAME} with the actual target name. -Werror is optional, it turns all warnings into errors. Or use add_compile_options(…) if … Read more