diff options
Diffstat (limited to 'cmake/QtBuildInternals/QtBuildInternalsConfig.cmake')
| -rw-r--r-- | cmake/QtBuildInternals/QtBuildInternalsConfig.cmake | 452 |
1 files changed, 27 insertions, 425 deletions
diff --git a/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake b/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake index 2d94e384e5..129f1ebb77 100644 --- a/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake +++ b/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake @@ -1,19 +1,29 @@ -if (CMAKE_VERSION VERSION_LESS 3.1.0) - message(FATAL_ERROR "Qt requires at least CMake version 3.1.0") -endif() +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: BSD-3-Clause -###################################### -# -# Macros for building Qt modules -# -###################################### +# These values should be kept in sync with those in qtbase/.cmake.conf +cmake_minimum_required(VERSION 3.16...3.21) set(QT_BACKUP_CMAKE_INSTALL_PREFIX_BEFORE_EXTRA_INCLUDE "${CMAKE_INSTALL_PREFIX}") +# This depends on qt_internal_read_repo_dependencies existing. if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsExtra.cmake") include(${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsExtra.cmake) endif() +macro(qt_internal_setup_cmake_and_export_namespace) + # The variables might have already been set in QtBuildInternalsExtra.cmake if the file is + # included while building a new module and not QtBase. In that case, stop overriding the value. + if(NOT INSTALL_CMAKE_NAMESPACE) + set(INSTALL_CMAKE_NAMESPACE "Qt${PROJECT_VERSION_MAJOR}" + CACHE STRING "CMake namespace [Qt${PROJECT_VERSION_MAJOR}]") + endif() + if(NOT QT_CMAKE_EXPORT_NAMESPACE) + set(QT_CMAKE_EXPORT_NAMESPACE "Qt${PROJECT_VERSION_MAJOR}" + CACHE STRING "CMake namespace used when exporting targets [Qt${PROJECT_VERSION_MAJOR}]") + endif() +endmacro() + macro(qt_set_up_build_internals_paths) # Set up the paths for the cmake modules located in the prefix dir. Prepend, so the paths are # least important compared to the source dir ones, but more important than command line @@ -26,6 +36,9 @@ macro(qt_set_up_build_internals_paths) # building qtdeclarative, rather than having to build qtbase first (which will copy # QtBuild.cmake to the build dir). This is similar to qmake non-prefix builds, where the # source qtbase/mkspecs directory is used. + # TODO: Clean this up, together with qt_internal_try_compile_binary_for_strip to only use the + # the qtbase sources when building qtbase. And perhaps also when doing a non-prefix + # developer-build. if(EXISTS "${QT_SOURCE_TREE}/cmake") list(PREPEND CMAKE_MODULE_PATH "${QT_SOURCE_TREE}/cmake") endif() @@ -41,426 +54,15 @@ macro(qt_set_up_build_internals_paths) endif() endmacro() +qt_internal_setup_cmake_and_export_namespace() + # Set up the build internal paths unless explicitly requested not to. if(NOT QT_BUILD_INTERNALS_SKIP_CMAKE_MODULE_PATH_ADDITION) + # Depends on qt_internal_setup_cmake_and_export_namespace qt_set_up_build_internals_paths() endif() -# Define some constants to check for certain platforms, etc. -# Needs to be loaded before qt_repo_build() to handle require() clauses before even starting a repo -# build. -include(QtPlatformSupport) - -function(qt_build_internals_disable_pkg_config_if_needed) - # pkg-config should not be used by default on Darwin and Windows platforms, as defined in - # the qtbase/configure.json. Unfortunately by the time the feature is evaluated there are - # already a few find_package() calls. - # So we have to duplicate the condition logic here and disable pkg-config for those platforms by - # default. - # - # Note that on macOS, if the pkg-config feature is enabled by the user explicitly, we will also - # tell CMake to consider paths like /usr/local (Homebrew) as system paths when looking for - # packages. - # We have to do that because disabling these paths but keeping pkg-config - # enabled won't enable finding all system libraries via pkg-config alone, many libraries can - # only be found via FooConfig.cmake files which means /usr/local should be in the system prefix - # path. - set(pkg_config_enabled ON) - if(APPLE OR WIN32) - set(pkg_config_enabled OFF) - endif() - if(DEFINED FEATURE_pkg_config) - if(FEATURE_pkg_config) - set(pkg_config_enabled ON) - else() - set(pkg_config_enabled OFF) - endif() - endif() - set(FEATURE_pkg_config "${pkg_config_enabled}" CACHE STRING "Using pkg-config") - if(NOT pkg_config_enabled) - qt_build_internals_disable_pkg_config() - else() - unset(PKG_CONFIG_EXECUTABLE CACHE) - endif() -endfunction() - -function(qt_build_internals_disable_pkg_config) - # Disable pkg-config by setting an empty executable path. There's no documented way to - # mark the package as found, but force all pkg_check_modules calls to do nothing. - set(PKG_CONFIG_EXECUTABLE "" CACHE STRING "Disabled pkg-config usage." FORCE) -endfunction() - -if(NOT QT_BUILD_INTERNALS_SKIP_PKG_CONFIG_ADJUSTMENT) - qt_build_internals_disable_pkg_config_if_needed() -endif() - -macro(qt_build_internals_find_pkg_config) - # Find package config once before any system prefix modifications. - find_package(PkgConfig QUIET) -endmacro() - -if(NOT QT_BUILD_INTERNALS_SKIP_FIND_PKG_CONFIG) - qt_build_internals_find_pkg_config() -endif() - -function(qt_build_internals_set_up_system_prefixes) - if(APPLE AND NOT FEATURE_pkg_config) - # Remove /usr/local and other paths like that which CMake considers as system prefixes on - # darwin platforms. CMake considers them as system prefixes, but in qmake / Qt land we only - # consider the SDK path as a system prefix. - # 3rd party libraries in these locations should not be picked up when building Qt, - # unless opted-in via the pkg-config feature, which in turn will disable this behavior. - # - # Note that we can't remove /usr as a system prefix path, because many programs won't be - # found then (e.g. perl). - set(QT_CMAKE_SYSTEM_PREFIX_PATH_BACKUP "${CMAKE_SYSTEM_PREFIX_PATH}" PARENT_SCOPE) - set(QT_CMAKE_SYSTEM_FRAMEWORK_PATH_BACKUP "${CMAKE_SYSTEM_FRAMEWORK_PATH}" PARENT_SCOPE) - - list(REMOVE_ITEM CMAKE_SYSTEM_PREFIX_PATH - "/usr/local" # Homebrew - "/usr/X11R6" - "/usr/pkg" - "/opt" - "/sw" # Fink - "/opt/local" # MacPorts - ) - if(_CMAKE_INSTALL_DIR) - list(REMOVE_ITEM CMAKE_SYSTEM_PREFIX_PATH "${_CMAKE_INSTALL_DIR}") - endif() - list(REMOVE_ITEM CMAKE_SYSTEM_FRAMEWORK_PATH "~/Library/Frameworks") - set(CMAKE_SYSTEM_PREFIX_PATH "${CMAKE_SYSTEM_PREFIX_PATH}" PARENT_SCOPE) - set(CMAKE_SYSTEM_FRAMEWORK_PATH "${CMAKE_SYSTEM_FRAMEWORK_PATH}" PARENT_SCOPE) - - # Also tell qt_find_package() not to use PATH when looking for packages. - # We can't simply set CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH to OFF because that will break - # find_program(), and for instance ccache won't be found. - # That's why we set a different variable which is used by qt_find_package. - set(QT_NO_USE_FIND_PACKAGE_SYSTEM_ENVIRONMENT_PATH "ON" PARENT_SCOPE) - endif() -endfunction() - -if(NOT QT_BUILD_INTERNALS_SKIP_SYSTEM_PREFIX_ADJUSTMENT) - qt_build_internals_set_up_system_prefixes() -endif() - -macro(qt_build_internals_set_up_private_api) - # Qt specific setup common for all modules: - include(QtSetup) - include(FeatureSummary) - - # Optionally include a repo specific Setup module. - include(${PROJECT_NAME}Setup OPTIONAL) - include(QtRepoSetup OPTIONAL) - - # Find Apple frameworks if needed. - qt_find_apple_system_frameworks() - - # Decide whether tools will be built. - qt_check_if_tools_will_be_built() -endmacro() - -macro(qt_enable_cmake_languages) - include(CheckLanguage) - set(__qt_required_language_list C CXX) - set(__qt_optional_language_list ) - - # https://gitlab.kitware.com/cmake/cmake/-/issues/20545 - if(APPLE) - list(APPEND __qt_optional_language_list OBJC OBJCXX) - endif() - - foreach(__qt_lang ${__qt_required_language_list}) - enable_language(${__qt_lang}) - endforeach() - - foreach(__qt_lang ${__qt_optional_language_list}) - check_language(${__qt_lang}) - if(CMAKE_${__qt_lang}_COMPILER) - enable_language(${__qt_lang}) - endif() - endforeach() -endmacro() - -# Minimum setup required to have any CMakeList.txt build as as a standalone -# project after importing BuildInternals -macro(qt_prepare_standalone_project) - qt_set_up_build_internals_paths() - qt_build_internals_set_up_private_api() - qt_enable_cmake_languages() -endmacro() - -macro(qt_build_repo_begin) - qt_build_internals_set_up_private_api() - qt_enable_cmake_languages() - - # Add global docs targets that will work both for per-repo builds, and super builds. - if(NOT TARGET docs) - add_custom_target(docs) - add_custom_target(prepare_docs) - add_custom_target(generate_docs) - add_custom_target(html_docs) - add_custom_target(qch_docs) - add_custom_target(install_html_docs_docs) - add_custom_target(install_qch_docs_docs) - add_custom_target(install_docs_docs) - endif() - - string(TOLOWER ${PROJECT_NAME} project_name_lower) - - set(qt_docs_target_name docs_${project_name_lower}) - set(qt_docs_prepare_target_name prepare_docs_${project_name_lower}) - set(qt_docs_generate_target_name generate_docs_${project_name_lower}) - set(qt_docs_html_target_name html_docs_${project_name_lower}) - set(qt_docs_qch_target_name qch_docs_${project_name_lower}) - set(qt_docs_install_html_target_name install_html_docs_${project_name_lower}) - set(qt_docs_install_qch_target_name install_qch_docs_${project_name_lower}) - set(qt_docs_install_target_name install_docs_${project_name_lower}) - - add_custom_target(${qt_docs_target_name}) - add_custom_target(${qt_docs_prepare_target_name}) - add_custom_target(${qt_docs_generate_target_name}) - add_custom_target(${qt_docs_qch_target_name}) - add_custom_target(${qt_docs_html_target_name}) - add_custom_target(${qt_docs_install_html_target_name}) - add_custom_target(${qt_docs_install_qch_target_name}) - add_custom_target(${qt_docs_install_target_name}) - - add_dependencies(${qt_docs_generate_target_name} ${qt_docs_prepare_target_name}) - add_dependencies(${qt_docs_html_target_name} ${qt_docs_generate_target_name}) - add_dependencies(${qt_docs_install_html_target_name} ${qt_docs_html_target_name}) - add_dependencies(${qt_docs_install_qch_target_name} ${qt_docs_qch_target_name}) - add_dependencies(${qt_docs_install_target_name} ${qt_docs_install_html_target_name} ${qt_docs_install_qch_target_name}) - - # Make global doc targets depend on the module ones. - add_dependencies(docs ${qt_docs_target_name}) - add_dependencies(prepare_docs ${qt_docs_prepare_target_name}) - add_dependencies(generate_docs ${qt_docs_generate_target_name}) - add_dependencies(html_docs ${qt_docs_html_target_name}) - add_dependencies(qch_docs ${qt_docs_qch_target_name}) - add_dependencies(install_html_docs_docs ${qt_docs_install_html_target_name}) - add_dependencies(install_qch_docs_docs ${qt_docs_install_qch_target_name}) - add_dependencies(install_docs_docs ${qt_docs_install_target_name}) - - # Add host_tools meta target, so that developrs can easily build only tools and their - # dependencies when working in qtbase. - if(NOT TARGET host_tools) - add_custom_target(host_tools) - add_custom_target(bootstrap_tools) - endif() -endmacro() - -macro(qt_build_repo_end) - if(NOT QT_BUILD_STANDALONE_TESTS) - # Delayed actions on some of the Qt targets: - include(QtPostProcess) - - # Install the repo-specific cmake find modules. - qt_path_join(__qt_repo_install_dir ${QT_CONFIG_INSTALL_DIR} ${INSTALL_CMAKE_NAMESPACE}) - - if(NOT PROJECT_NAME STREQUAL "QtBase") - if (EXISTS cmake) - qt_copy_or_install(DIRECTORY cmake/ - DESTINATION "${__qt_repo_install_dir}" - FILES_MATCHING PATTERN "Find*.cmake" - ) - endif() - endif() +include(QtBuildHelpers) - if(NOT QT_SUPERBUILD) - qt_print_feature_summary() - endif() - endif() - - if(NOT QT_SUPERBUILD) - qt_print_build_instructions() - endif() -endmacro() - -macro(qt_build_repo) - qt_build_repo_begin(${ARGN}) - - # If testing is enabled, try to find the qtbase Test package. - # Do this before adding src, because there might be test related conditions - # in source. - if (BUILD_TESTING AND NOT QT_BUILD_STANDALONE_TESTS) - find_package(Qt6 ${PROJECT_VERSION} CONFIG REQUIRED COMPONENTS Test) - endif() - - if(NOT QT_BUILD_STANDALONE_TESTS) - if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/src/CMakeLists.txt") - add_subdirectory(src) - endif() - - if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tools/CMakeLists.txt") - add_subdirectory(tools) - endif() - endif() - - if (BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests/CMakeLists.txt") - add_subdirectory(tests) - if(QT_NO_MAKE_TESTS) - set_property(DIRECTORY tests PROPERTY EXCLUDE_FROM_ALL TRUE) - endif() - endif() - - qt_build_repo_end() - - if (BUILD_EXAMPLES AND BUILD_SHARED_LIBS - AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/examples/CMakeLists.txt" - AND NOT QT_BUILD_STANDALONE_TESTS) - add_subdirectory(examples) - if(QT_NO_MAKE_EXAMPLES) - set_property(DIRECTORY examples PROPERTY EXCLUDE_FROM_ALL TRUE) - endif() - endif() -endmacro() - -macro(qt_set_up_standalone_tests_build) - # Remove this macro once all usages of it have been removed. - # Standalone tests are not handled via the main repo project and qt_build_tests. -endmacro() - -function(qt_get_standalone_tests_confg_files_path out_var) - set(path "${QT_CONFIG_INSTALL_DIR}/${INSTALL_CMAKE_NAMESPACE}BuildInternals/StandaloneTests") - - # QT_CONFIG_INSTALL_DIR is relative in prefix builds. - if(QT_WILL_INSTALL) - qt_path_join(path "${CMAKE_INSTALL_PREFIX}" "${path}") - endif() - - set("${out_var}" "${path}" PARENT_SCOPE) -endfunction() - -macro(qt_build_tests) - if(QT_BUILD_STANDALONE_TESTS) - # Find location of TestsConfig.cmake. These contain the modules that need to be - # find_package'd when testing. - qt_get_standalone_tests_confg_files_path(_qt_build_tests_install_prefix) - include("${_qt_build_tests_install_prefix}/${PROJECT_NAME}TestsConfig.cmake" OPTIONAL) - - # Of course we always need the test module as well. - find_package(Qt6 ${PROJECT_VERSION} CONFIG REQUIRED COMPONENTS Test) - - # Set language standards after finding Core, because that's when the relevant - # feature variables are available, and the call in QtSetup is too early when building - # standalone tests, because Core was not find_package()'d yet. - qt_set_language_standards() - - if(NOT QT_SUPERBUILD) - # Set up fake standalone tests install prefix, so we don't pollute the Qt install - # prefix. For super builds it needs to be done in qt5/CMakeLists.txt. - qt_set_up_fake_standalone_tests_install_prefix() - endif() - endif() - - if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/auto/CMakeLists.txt") - add_subdirectory(auto) - endif() - if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/benchmarks/CMakeLists.txt" AND QT_BUILD_BENCHMARKS) - add_subdirectory(benchmarks) - endif() - if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/manual/CMakeLists.txt") - # add_subdirectory(manual) don't build manual tests for now, because qmake doesn't. - endif() -endmacro() - -function(qt_compute_relative_path_from_cmake_config_dir_to_prefix) - # Compute the reverse relative path from the CMake config dir to the install prefix. - # This is used in QtBuildInternalsExtras to create a relocatable relative install prefix path. - # This path is used for finding syncqt and other things, regardless of initial install prefix - # (e.g installed Qt was archived and unpacked to a different path on a different machine). - # - # This is meant to be called only once when configuring qtbase. - # - # Similar code exists in Qt6CoreConfigExtras.cmake.in and src/corelib/CMakeLists.txt which - # might not be needed anymore. - if(QT_WILL_INSTALL) - get_filename_component(clean_config_prefix - "${CMAKE_INSTALL_PREFIX}/${QT_CONFIG_INSTALL_DIR}" ABSOLUTE) - else() - get_filename_component(clean_config_prefix "${QT_CONFIG_BUILD_DIR}" ABSOLUTE) - endif() - file(RELATIVE_PATH - qt_path_from_cmake_config_dir_to_prefix - "${clean_config_prefix}" "${CMAKE_INSTALL_PREFIX}") - set(qt_path_from_cmake_config_dir_to_prefix "${qt_path_from_cmake_config_dir_to_prefix}" - PARENT_SCOPE) -endfunction() - -function(qt_get_relocatable_install_prefix out_var) - # We need to compute it only once while building qtbase. Afterwards it's loaded from - # QtBuildInternalsExtras.cmake. - if(QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX) - return() - endif() - # The QtBuildInternalsExtras value is dynamically computed, whereas the initial qtbase - # configuration uses an absolute path. - set(${out_var} "${CMAKE_INSTALL_PREFIX}" PARENT_SCOPE) -endfunction() - -function(qt_set_up_fake_standalone_tests_install_prefix) - # Set a fake local (non-cache) CMAKE_INSTALL_PREFIX. - # Needed for standalone tests, we don't want to accidentally install a test into the Qt prefix. - # Allow opt-out, if a user knows what they're doing. - if(QT_NO_FAKE_STANDALONE_TESTS_INSTALL_PREFIX) - return() - endif() - set(new_install_prefix "${CMAKE_BINARY_DIR}/fake_prefix") - - # It's IMPORTANT that this is not a cache variable. Otherwise - # qt_get_standalone_tests_confg_files_path() will not work on re-configuration. - message(STATUS - "Setting local standalone test install prefix (non-cached) to '${new_install_prefix}'.") - set(CMAKE_INSTALL_PREFIX "${new_install_prefix}" PARENT_SCOPE) -endfunction() - -macro(qt_examples_build_begin) - # Examples that are built as part of the Qt build need to use the CMake config files from the - # build dir, because they are not installed yet in a prefix build. - # Appending to CMAKE_PREFIX_PATH helps find the initial Qt6Config.cmake. - # Appending to QT_EXAMPLES_CMAKE_PREFIX_PATH helps find components of Qt6, because those - # find_package calls use NO_DEFAULT_PATH, and thus CMAKE_PREFIX_PATH is ignored. - list(APPEND CMAKE_PREFIX_PATH "${QT_BUILD_DIR}") - list(APPEND QT_EXAMPLES_CMAKE_PREFIX_PATH "${QT_BUILD_DIR}") - # Also make sure the CMake config files do not recreate the already-existing targets - set(QT_NO_CREATE_TARGETS TRUE) - set(BACKUP_CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ${CMAKE_FIND_ROOT_PATH_MODE_PACKAGE}) - set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE "BOTH") - - # Because CMAKE_INSTALL_RPATH is empty by default in the repo project, examples need to have - # it set here, so they can run when installed. - # This means that installed examples are not relocatable at the moment. We would need to - # annotate where each example is installed to, to be able to derive a relative rpath, and it - # seems there's no way to query such information from CMake itself. - set(CMAKE_INSTALL_RPATH "${_default_install_rpath}") - set(QT_DISABLE_QT_ADD_PLUGIN_COMPATIBILITY TRUE) -endmacro() - -macro(qt_examples_build_end) - # We use AUTOMOC/UIC/RCC in the examples. Make sure to not fail on a fresh Qt build, that e.g. the moc binary does not exist yet. - - # This function gets all targets below this directory - function(get_all_targets _result _dir) - get_property(_subdirs DIRECTORY "${_dir}" PROPERTY SUBDIRECTORIES) - foreach(_subdir IN LISTS _subdirs) - get_all_targets(${_result} "${_subdir}") - endforeach() - get_property(_sub_targets DIRECTORY "${_dir}" PROPERTY BUILDSYSTEM_TARGETS) - set(${_result} ${${_result}} ${_sub_targets} PARENT_SCOPE) - endfunction() - - get_all_targets(targets "${CMAKE_CURRENT_SOURCE_DIR}") - - foreach(target ${targets}) - qt_autogen_tools(${target} ENABLE_AUTOGEN_TOOLS "moc" "rcc") - if(TARGET Qt::Widgets) - qt_autogen_tools(${target} ENABLE_AUTOGEN_TOOLS "uic") - endif() - endforeach() - - set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ${BACKUP_CMAKE_FIND_ROOT_PATH_MODE_PACKAGE}) -endmacro() - -if (ANDROID) - include(${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsAndroid.cmake) -endif() +qt_internal_include_all_helpers() +qt_internal_setup_build_internals() |