find_program(GIT git)
execute_process(
    COMMAND ${GIT} describe
    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_DESCRIBE_DIRTY
    OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "^v([0-9]+)\\..*" "\\1" VERSION_MAJOR "${GIT_DESCRIBE_DIRTY}")
string(REGEX REPLACE "^v[0-9]+\\.([0-9]+).*" "\\1" VERSION_MINOR "${GIT_DESCRIBE_DIRTY}")
string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_PATCH "${GIT_DESCRIBE_DIRTY}")
string(REGEX REPLACE "^v[0-9]+\\.[0-9]+\\.[0-9]+\\-([0-9]+).*" "\\1" VERSION_COMMIT "${GIT_DESCRIBE_DIRTY}")