# special case skip regeneration # Need an explicit call at the top level. This is the absolute minimum version # needed to configure the project with any combination of enabled features. # The call to qt_build_repo_begin() will upgrade policies further. # # The absolute minimum version for building Qt is 3.16 because for metatype.json generation, we # depend on being able to find the location of json files created by AUTOMOC/moc. cmake_minimum_required(VERSION 3.16) # Get the repo version and CMake policy details include(.cmake.conf) # Bail out if any part of the build directory's path is symlinked. function(qt_internal_check_if_path_has_symlinks path) get_filename_component(dir "${path}" ABSOLUTE) set(is_symlink FALSE) if(CMAKE_HOST_WIN32) # CMake marks Windows mount points as symbolic links, so use simplified REALPATH check # on Windows platforms instead of IS_SYMLINK. get_filename_component(dir_realpath "${dir}" REALPATH) if(NOT dir STREQUAL dir_realpath) set(is_symlink TRUE) endif() else() while(TRUE) if(IS_SYMLINK "${dir}") set(is_symlink TRUE) break() endif() set(prev_dir "${dir}") get_filename_component(dir "${dir}" DIRECTORY) if("${dir}" STREQUAL "${prev_dir}") return() endif() endwhile() endif() if(is_symlink) message(FATAL_ERROR "The path \"${path}\" contains symlinks. \ This is not supported. Possible solutions: - map directories using a transparent mechanism such as mount --bind - pass the real path of the build directory to CMake, e.g. using \ cd $(realpath <path>) before invoking cmake <source_dir>.") endif() endfunction() qt_internal_check_if_path_has_symlinks("${CMAKE_BINARY_DIR}") # Run auto detection routines, but not when doing standalone tests. In that case, the detection # results are taken from either QtBuildInternals or the qt.toolchain.cmake file. Also, inhibit # auto-detection in a top-level build, because the top-level project file already includes it. if(NOT QT_BUILD_STANDALONE_TESTS AND NOT QT_SUPERBUILD) include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtAutoDetect.cmake) endif() # This call will load any provided cmake toolchain file. project(QtBase VERSION "${QT_REPO_MODULE_VERSION}" DESCRIPTION "Qt Base Libraries" HOMEPAGE_URL "https://qt.io/" LANGUAGES CXX C ASM ) # Should this Qt be static or dynamically linked? option(BUILD_SHARED_LIBS "Build Qt statically or dynamically" ON) set(QT_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS}) # This variable is also set in Qt6CoreConfigExtras.cmake, but it's not loaded when building # qtbase. Set it here so qt_add_plugin can compute the proper plugin flavor. set(QT6_IS_SHARED_LIBS_BUILD ${BUILD_SHARED_LIBS}) # BUILD_SHARED_LIBS influences the minimum required CMake version. The value is set either by: # a cache variable provided on the configure command line # or set by QtAutoDetect.cmake depending on the platform # or specified via a toolchain file that is loaded by the project() call # or set by the option() call above include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtCMakeVersionHelpers.cmake") include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtPublicCMakeVersionHelpers.cmake") qt_internal_check_and_warn_about_unsuitable_cmake_version() if(NOT QT_BUILD_STANDALONE_TESTS) ## Add some paths to check for cmake modules: list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/3rdparty/extra-cmake-modules/find-modules" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/3rdparty/kwin" ) if(MACOS) # Add module directory to pick up custom Info.plist template list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/macos") elseif(IOS) # Add module directory to pick up custom Info.plist template list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/ios") endif() ## Find the build internals package. set(QT_BUILD_INTERNALS_SKIP_CMAKE_MODULE_PATH_ADDITION TRUE) list(PREPEND CMAKE_PREFIX_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ) find_package(QtBuildInternals CMAKE_FIND_ROOT_PATH_BOTH) unset(QT_BUILD_INTERNALS_SKIP_CMAKE_MODULE_PATH_ADDITION) else() # When building standalone tests, an istalled BuildInternals package already exists. find_package(Qt6 REQUIRED COMPONENTS BuildInternals CMAKE_FIND_ROOT_PATH_BOTH) endif() qt_build_repo_begin() if(NOT QT_BUILD_STANDALONE_TESTS) ## Should this Qt be built with Werror? option(WARNINGS_ARE_ERRORS "Build Qt with warnings as errors" ${FEATURE_developer_build}) ## Should this Qt create versioned hard link for some tools? option(QT_CREATE_VERSIONED_HARD_LINK "Enable the use of versioned hard link" ON) ## QtBase specific configure tests: include(QtBaseConfigureTests) ## Build System tests: include(QtBaseCMakeTesting) ## Targets for global features, etc.: include(QtBaseGlobalTargets) ## Set language standards after QtBaseGlobalTargets, because that's when the relevant ## feature variables are available. qt_set_language_standards() #include CoreMacros() for qt6_generate_meta_types() set(QT_DEFAULT_MAJOR_VERSION 6) include(src/corelib/Qt6CoreMacros.cmake) # Needed when building qtbase for android. if(ANDROID) include(src/corelib/Qt6AndroidMacros.cmake) _qt_internal_create_global_android_targets() endif() if(WASM) # Needed when building for WebAssembly. include(cmake/QtWasmHelpers.cmake) include(src/corelib/Qt6WasmMacros.cmake) qt_internal_setup_wasm_target_properties(Platform) endif() # Set up optimization flags like in qmake. # This function must be called after the global QT_FEATURE_xxx variables have been set up, # aka after QtBaseGlobalTargets is processed. # It also has to be called /before/ adding add_subdirectory(src), so that per-directory # modifications can still be applied if necessary (like in done in Core and Gui). qt_internal_set_up_config_optimizations_like_in_qmake() ## Setup documentation add_subdirectory(doc) ## Visit all the directories: add_subdirectory(src) endif() if(QT_BUILD_TESTS) add_subdirectory(tests) if(NOT QT_BUILD_TESTS_BY_DEFAULT) set_property(DIRECTORY tests PROPERTY EXCLUDE_FROM_ALL TRUE) endif() endif() if(NOT QT_BUILD_STANDALONE_TESTS) if(QT_WILL_BUILD_TOOLS AND QT_FEATURE_settings) add_subdirectory(qmake) endif() # As long as we use the mkspecs (for qplatformdefs.h), we need to always # install it, especially when cross-compiling. set(mkspecs_install_dir "${INSTALL_MKSPECSDIR}") qt_path_join(mkspecs_install_dir ${QT_INSTALL_DIR} ${mkspecs_install_dir}) file(GLOB mkspecs_subdirs LIST_DIRECTORIES TRUE "${PROJECT_SOURCE_DIR}/mkspecs/*") foreach(entry IN LISTS mkspecs_subdirs) if (IS_DIRECTORY ${entry}) qt_copy_or_install(DIRECTORY "${entry}" DESTINATION ${mkspecs_install_dir} USE_SOURCE_PERMISSIONS) else() qt_copy_or_install(FILES "${entry}" DESTINATION ${mkspecs_install_dir}) endif() endforeach() endif() qt_build_repo_end() if(NOT QT_BUILD_STANDALONE_TESTS AND QT_BUILD_EXAMPLES) add_subdirectory(examples) endif()