cmake_minimum_required(VERSION 3.7.2) project(hopscotch-download NONE) include(ExternalProject) ExternalProject_Add(hopscotch GIT_REPOSITORY https://github.com/Tessil/hopscotch-map.git GIT_TAG v2.3.1 SOURCE_DIR "${CMAKE_BINARY_DIR}/hopscotch-src" BINARY_DIR "${CMAKE_BINARY_DIR}/hopscotch-build" CONFIGURE_COMMAND "" BUILD_COMMAND "" INSTALL_COMMAND "" TEST_COMMAND "" )