cmake_minimum_required(VERSION 3.1) project(pybind11-download NONE) include(ExternalProject) ExternalProject_Add(pybind11 SOURCE_DIR ${PROJECT_SOURCE_DIR}/third-party/pybind11 BINARY_DIR ${PROJECT_BINARY_DIR}/third-party/pybind11 GIT_REPOSITORY ${PYBIND11_GIT} GIT_TAG ${PYBIND11_VERSION} CONFIGURE_COMMAND "" BUILD_COMMAND "" INSTALL_COMMAND "" TEST_COMMAND "" )