2d9c9ab874
CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT might be empty on the
first configuration, but because QtBuildInternalsExtra sets the
CMAKE_INSTALL_PREFIX, a second reconfiguration of a test would
stop setting the fake install prefix.
After some further consideration, there's no need to set the local
fake prefix conditionally, we can always do it (unless explicitly
opted out).
This makes sure that a reconfiguration of a test doesn't suddenly
install into the Qt prefix again.
Amends 37b132cd4e
Task-number: QTBUG-84346
Change-Id: Ic61aefe18418658455d8cdb9ebe6bcbcb8d67c99
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
368 lines
15 KiB
CMake
368 lines
15 KiB
CMake
if (CMAKE_VERSION VERSION_LESS 3.1.0)
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message(FATAL_ERROR "Qt requires at least CMake version 3.1.0")
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endif()
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######################################
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#
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# Macros for building Qt modules
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#
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######################################
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set(QT_BACKUP_CMAKE_INSTALL_PREFIX_BEFORE_EXTRA_INCLUDE "${CMAKE_INSTALL_PREFIX}")
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if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsExtra.cmake")
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include(${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsExtra.cmake)
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endif()
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macro(qt_set_up_build_internals_paths)
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# Set up the paths for the cmake modules located in the prefix dir. Prepend, so the paths are
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# least important compared to the source dir ones, but more important than command line
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# provided ones.
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set(QT_CMAKE_MODULE_PATH "${QT_BUILD_INTERNALS_PATH}/../${QT_CMAKE_EXPORT_NAMESPACE}")
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list(PREPEND CMAKE_MODULE_PATH "${QT_CMAKE_MODULE_PATH}")
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# Prepend the qtbase source cmake directory to CMAKE_MODULE_PATH,
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# so that if a change is done in cmake/QtBuild.cmake, it gets automatically picked up when
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# building qtdeclarative, rather than having to build qtbase first (which will copy
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# QtBuild.cmake to the build dir). This is similar to qmake non-prefix builds, where the
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# source qtbase/mkspecs directory is used.
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if(EXISTS "${QT_SOURCE_TREE}/cmake")
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list(PREPEND CMAKE_MODULE_PATH "${QT_SOURCE_TREE}/cmake")
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endif()
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# If the repo has its own cmake modules, include those in the module path.
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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endif()
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# Find the cmake files when doing a standalone tests build.
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
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list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
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endif()
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endmacro()
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# Set up the build internal paths unless explicitly requested not to.
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if(NOT QT_BUILD_INTERNALS_SKIP_CMAKE_MODULE_PATH_ADDITION)
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qt_set_up_build_internals_paths()
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endif()
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# Define some constants to check for certain platforms, etc.
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# Needs to be loaded before qt_repo_build() to handle require() clauses before even starting a repo
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# build.
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include(QtPlatformSupport)
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macro(qt_build_internals_set_up_private_api)
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# Qt specific setup common for all modules:
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include(QtSetup)
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include(FeatureSummary)
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# Optionally include a repo specific Setup module.
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include(${PROJECT_NAME}Setup OPTIONAL)
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include(QtRepoSetup OPTIONAL)
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# Find Apple frameworks if needed.
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qt_find_apple_system_frameworks()
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# Decide whether tools will be built.
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qt_check_if_tools_will_be_built()
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endmacro()
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macro(qt_enable_cmake_languages)
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include(CheckLanguage)
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set(__qt_required_language_list C CXX)
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set(__qt_optional_language_list )
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# https://gitlab.kitware.com/cmake/cmake/-/issues/20545
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if(APPLE)
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list(APPEND __qt_optional_language_list OBJC OBJCXX)
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endif()
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foreach(__qt_lang ${__qt_required_language_list})
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enable_language(${__qt_lang})
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endforeach()
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foreach(__qt_lang ${__qt_optional_language_list})
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check_language(${__qt_lang})
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if(CMAKE_${__qt_lang}_COMPILER)
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enable_language(${__qt_lang})
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endif()
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endforeach()
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endmacro()
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# Minimum setup required to have any CMakeList.txt build as as a standalone
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# project after importing BuildInternals
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macro(qt_prepare_standalone_project)
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qt_set_up_build_internals_paths()
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qt_build_internals_set_up_private_api()
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qt_enable_cmake_languages()
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endmacro()
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macro(qt_build_repo_begin)
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qt_build_internals_set_up_private_api()
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qt_enable_cmake_languages()
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# Add global docs targets that will work both for per-repo builds, and super builds.
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if(NOT TARGET docs)
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add_custom_target(docs)
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add_custom_target(prepare_docs)
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add_custom_target(generate_docs)
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add_custom_target(html_docs)
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add_custom_target(qch_docs)
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add_custom_target(install_html_docs_docs)
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add_custom_target(install_qch_docs_docs)
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add_custom_target(install_docs_docs)
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endif()
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string(TOLOWER ${PROJECT_NAME} project_name_lower)
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set(qt_docs_target_name docs_${project_name_lower})
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set(qt_docs_prepare_target_name prepare_docs_${project_name_lower})
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set(qt_docs_generate_target_name generate_docs_${project_name_lower})
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set(qt_docs_html_target_name html_docs_${project_name_lower})
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set(qt_docs_qch_target_name qch_docs_${project_name_lower})
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set(qt_docs_install_html_target_name install_html_docs_${project_name_lower})
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set(qt_docs_install_qch_target_name install_qch_docs_${project_name_lower})
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set(qt_docs_install_target_name install_docs_${project_name_lower})
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add_custom_target(${qt_docs_target_name})
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add_custom_target(${qt_docs_prepare_target_name})
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add_custom_target(${qt_docs_generate_target_name})
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add_custom_target(${qt_docs_qch_target_name})
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add_custom_target(${qt_docs_html_target_name})
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add_custom_target(${qt_docs_install_html_target_name})
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add_custom_target(${qt_docs_install_qch_target_name})
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add_custom_target(${qt_docs_install_target_name})
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add_dependencies(${qt_docs_generate_target_name} ${qt_docs_prepare_target_name})
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add_dependencies(${qt_docs_html_target_name} ${qt_docs_generate_target_name})
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add_dependencies(${qt_docs_install_html_target_name} ${qt_docs_html_target_name})
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add_dependencies(${qt_docs_install_qch_target_name} ${qt_docs_qch_target_name})
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add_dependencies(${qt_docs_install_target_name} ${qt_docs_install_html_target_name} ${qt_docs_install_qch_target_name})
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# Make global doc targets depend on the module ones.
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add_dependencies(docs ${qt_docs_target_name})
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add_dependencies(prepare_docs ${qt_docs_prepare_target_name})
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add_dependencies(generate_docs ${qt_docs_generate_target_name})
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add_dependencies(html_docs ${qt_docs_html_target_name})
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add_dependencies(qch_docs ${qt_docs_qch_target_name})
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add_dependencies(install_html_docs_docs ${qt_docs_install_html_target_name})
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add_dependencies(install_qch_docs_docs ${qt_docs_install_qch_target_name})
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add_dependencies(install_docs_docs ${qt_docs_install_target_name})
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endmacro()
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macro(qt_build_repo_end)
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if(NOT QT_BUILD_STANDALONE_TESTS)
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# Delayed actions on some of the Qt targets:
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include(QtPostProcess)
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# Install the repo-specific cmake find modules.
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qt_path_join(__qt_repo_install_dir ${QT_CONFIG_INSTALL_DIR} ${INSTALL_CMAKE_NAMESPACE})
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if(NOT PROJECT_NAME STREQUAL "QtBase")
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if (EXISTS cmake)
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qt_copy_or_install(DIRECTORY cmake/
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DESTINATION "${__qt_repo_install_dir}"
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FILES_MATCHING PATTERN "Find*.cmake"
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)
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endif()
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endif()
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if(NOT QT_SUPERBUILD)
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qt_print_feature_summary()
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endif()
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endif()
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if(NOT QT_SUPERBUILD)
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qt_print_build_instructions()
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endif()
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endmacro()
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macro(qt_build_repo)
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qt_build_repo_begin(${ARGN})
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# If testing is enabled, try to find the qtbase Test package.
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# Do this before adding src, because there might be test related conditions
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# in source.
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if (BUILD_TESTING AND NOT QT_BUILD_STANDALONE_TESTS)
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find_package(Qt6 ${PROJECT_VERSION} CONFIG REQUIRED COMPONENTS Test)
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endif()
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if(NOT QT_BUILD_STANDALONE_TESTS)
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if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/src/CMakeLists.txt")
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add_subdirectory(src)
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endif()
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if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tools/CMakeLists.txt")
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add_subdirectory(tools)
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endif()
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endif()
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if (BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests/CMakeLists.txt")
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add_subdirectory(tests)
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if(QT_NO_MAKE_TESTS)
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set_property(DIRECTORY tests PROPERTY EXCLUDE_FROM_ALL TRUE)
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endif()
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endif()
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qt_build_repo_end()
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if (BUILD_EXAMPLES AND BUILD_SHARED_LIBS
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AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/examples/CMakeLists.txt"
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AND NOT QT_BUILD_STANDALONE_TESTS)
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add_subdirectory(examples)
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if(QT_NO_MAKE_EXAMPLES)
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set_property(DIRECTORY examples PROPERTY EXCLUDE_FROM_ALL TRUE)
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endif()
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endif()
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endmacro()
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macro(qt_set_up_standalone_tests_build)
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# Remove this macro once all usages of it have been removed.
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# Standalone tests are not handled via the main repo project and qt_build_tests.
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endmacro()
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function(qt_get_standalone_tests_confg_files_path out_var)
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set(path "${QT_CONFIG_INSTALL_DIR}/${INSTALL_CMAKE_NAMESPACE}BuildInternals/StandaloneTests")
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# QT_CONFIG_INSTALL_DIR is relative in prefix builds.
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if(QT_WILL_INSTALL)
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qt_path_join(path "${CMAKE_INSTALL_PREFIX}" "${path}")
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endif()
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set("${out_var}" "${path}" PARENT_SCOPE)
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endfunction()
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macro(qt_build_tests)
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if(QT_BUILD_STANDALONE_TESTS)
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# Find location of TestsConfig.cmake. These contain the modules that need to be
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# find_package'd when testing.
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qt_get_standalone_tests_confg_files_path(_qt_build_tests_install_prefix)
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include("${_qt_build_tests_install_prefix}/${PROJECT_NAME}TestsConfig.cmake" OPTIONAL)
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# Of course we always need the test module as well.
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find_package(Qt6 ${PROJECT_VERSION} CONFIG REQUIRED COMPONENTS Test)
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# Set language standards after finding Core, because that's when the relevant
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# feature variables are available, and the call in QtSetup is too early when building
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# standalone tests, because Core was not find_package()'d yet.
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qt_set_language_standards()
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if(NOT QT_SUPERBUILD)
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# Set up fake standalone tests install prefix, so we don't pollute the Qt install
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# prefix. For super builds it needs to be done in qt5/CMakeLists.txt.
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qt_set_up_fake_standalone_tests_install_prefix()
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endif()
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endif()
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/auto/CMakeLists.txt")
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add_subdirectory(auto)
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endif()
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/benchmarks/CMakeLists.txt" AND QT_BUILD_BENCHMARKS)
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add_subdirectory(benchmarks)
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endif()
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/manual/CMakeLists.txt")
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# add_subdirectory(manual) don't build manual tests for now, because qmake doesn't.
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endif()
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endmacro()
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function(qt_compute_relative_path_from_cmake_config_dir_to_prefix)
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# Compute the reverse relative path from the CMake config dir to the install prefix.
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# This is used in QtBuildInternalsExtras to create a relocatable relative install prefix path.
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# This path is used for finding syncqt and other things, regardless of initial install prefix
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# (e.g installed Qt was archived and unpacked to a different path on a different machine).
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#
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# This is meant to be called only once when configuring qtbase.
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#
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# Similar code exists in Qt6CoreConfigExtras.cmake.in and src/corelib/CMakeLists.txt which
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# might not be needed anymore.
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if(QT_WILL_INSTALL)
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get_filename_component(clean_config_prefix
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"${CMAKE_INSTALL_PREFIX}/${QT_CONFIG_INSTALL_DIR}" ABSOLUTE)
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else()
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get_filename_component(clean_config_prefix "${QT_CONFIG_BUILD_DIR}" ABSOLUTE)
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endif()
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file(RELATIVE_PATH
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qt_path_from_cmake_config_dir_to_prefix
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"${clean_config_prefix}" "${CMAKE_INSTALL_PREFIX}")
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set(qt_path_from_cmake_config_dir_to_prefix "${qt_path_from_cmake_config_dir_to_prefix}"
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PARENT_SCOPE)
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endfunction()
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function(qt_get_relocatable_install_prefix out_var)
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# We need to compute it only once while building qtbase. Afterwards it's loaded from
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# QtBuildInternalsExtras.cmake.
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if(QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX)
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return()
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endif()
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# The QtBuildInternalsExtras value is dynamically computed, whereas the initial qtbase
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# configuration uses an absolute path.
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set(${out_var} "${CMAKE_INSTALL_PREFIX}" PARENT_SCOPE)
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endfunction()
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function(qt_set_up_fake_standalone_tests_install_prefix)
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# Set a fake local (non-cache) CMAKE_INSTALL_PREFIX.
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# Needed for standalone tests, we don't want to accidentally install a test into the Qt prefix.
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# Allow opt-out, if a user knows what they're doing.
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if(QT_NO_FAKE_STANDALONE_TESTS_INSTALL_PREFIX)
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return()
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endif()
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set(new_install_prefix "${CMAKE_BINARY_DIR}/fake_prefix")
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# It's IMPORTANT that this is not a cache variable. Otherwise
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# qt_get_standalone_tests_confg_files_path() will not work on re-configuration.
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message(STATUS
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"Setting local standalone test install prefix (non-cached) to '${new_install_prefix}'.")
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set(CMAKE_INSTALL_PREFIX "${new_install_prefix}" PARENT_SCOPE)
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endfunction()
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macro(qt_examples_build_begin)
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# Examples that are built as part of the Qt build need to use the CMake config files from the
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# build dir, because they are not installed yet in a prefix build.
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# Appending to CMAKE_PREFIX_PATH helps find the initial Qt6Config.cmake.
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# Appending to QT_EXAMPLES_CMAKE_PREFIX_PATH helps find components of Qt6, because those
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# find_package calls use NO_DEFAULT_PATH, and thus CMAKE_PREFIX_PATH is ignored.
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list(APPEND CMAKE_PREFIX_PATH "${QT_BUILD_DIR}")
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list(APPEND QT_EXAMPLES_CMAKE_PREFIX_PATH "${QT_BUILD_DIR}")
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# Also make sure the CMake config files do not recreate the already-existing targets
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set(QT_NO_CREATE_TARGETS TRUE)
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set(BACKUP_CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ${CMAKE_FIND_ROOT_PATH_MODE_PACKAGE})
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE "BOTH")
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# Because CMAKE_INSTALL_RPATH is empty by default in the repo project, examples need to have
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# it set here, so they can run when installed.
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# This means that installed examples are not relocatable at the moment. We would need to
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# annotate where each example is installed to, to be able to derive a relative rpath, and it
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# seems there's no way to query such information from CMake itself.
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set(CMAKE_INSTALL_RPATH "${_default_install_rpath}")
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set(QT_DISABLE_QT_ADD_PLUGIN_COMPATIBILITY TRUE)
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endmacro()
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macro(qt_examples_build_end)
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# 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.
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# This function gets all targets below this directory
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function(get_all_targets _result _dir)
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get_property(_subdirs DIRECTORY "${_dir}" PROPERTY SUBDIRECTORIES)
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foreach(_subdir IN LISTS _subdirs)
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get_all_targets(${_result} "${_subdir}")
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endforeach()
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get_property(_sub_targets DIRECTORY "${_dir}" PROPERTY BUILDSYSTEM_TARGETS)
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set(${_result} ${${_result}} ${_sub_targets} PARENT_SCOPE)
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endfunction()
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get_all_targets(targets "${CMAKE_CURRENT_SOURCE_DIR}")
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foreach(target ${targets})
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qt_autogen_tools(${target} ENABLE_AUTOGEN_TOOLS "moc" "rcc")
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if(TARGET Qt::Widgets)
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qt_autogen_tools(${target} ENABLE_AUTOGEN_TOOLS "uic")
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endif()
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endforeach()
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ${BACKUP_CMAKE_FIND_ROOT_PATH_MODE_PACKAGE})
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endmacro()
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if (ANDROID)
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include(${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsAndroid.cmake)
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endif()
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