add_subdirectoryΒΆ

add_subdirectory(
                  dir 
                 [EXCLUDE_FROM_ALL]
)
dir
The CMakeLists.txt file from this subdirectory will be executed next.
EXCLUDE_FROM_ALL
Whether targets added in this subdirectory should be built during make all.

This is a cmake builtin command. For detailed information, check the cmake documentation:

cmake --help-command add_subdirectory