ExternalProject_Add(croncpp
    GIT_REPOSITORY https://github.com/mariusbancila/croncpp.git
    CONFIGURE_COMMAND cmake -DCMAKE_INSTALL_PREFIX=<BINARY_DIR> <SOURCE_DIR>
)

ExternalProject_Get_property(croncpp BINARY_DIR)
set(CRONCPP_BINARY_DIR ${BINARY_DIR})

include_directories(${CRONCPP_BINARY_DIR}/include)