cmake_minimum_required(VERSION 3.14.0) include(FetchContent) find_package(zlib QUIET) set(ZLIB_LIBRARY zlib) if (NOT zlib_FOUND) FetchContent_Declare( zlib GIT_REPOSITORY https://github.com/madler/zlib.git GIT_TAG v1.2.13 ) FetchContent_MakeAvailable(zlib) endif()