libyaml.cmake
if(USE_YAML)
set (BUILD_TESTING OFF CACHE INTERNAL "" FORCE)
add_subdirectory (thirdParty/libyaml)
include_directories (${yaml_BINARY_DIR}/include ${yaml_SOURCE_DIR}/include) # for windows
set(TOMATO_LIBS_TO_LINK ${TOMATO_LIBS_TO_LINK} yaml)
endif(USE_YAML)