98c89c8cc1
Change prefix builds to use ExternalProjects to build examples
by default. This will affect our CI which only does prefix builds.
To make it work, we have to do a few adjustments:
- look for Config files in the build-tree (before Qt is installed)
- build only one examples with only a single config,
even if Qt is a multi-config build
- install examples as part of main make install step, rather than
as part of the make step (which is the default for EPs)
- adjust CXX flags when building with MSVC to ensure we can still
use sccache and separate debug info
- derive the correct install prefix for each example and pass it
to the ExternalProject
As a drive-by, add TODOs to address tidiness of the code and corner
cases that likely don't work (Conan).
Amends d97fd7af2b
Pick-to: 6.2 6.3
Task-number: QTBUG-90820
Task-number: QTBUG-96232
Change-Id: I3060da5dc64e7b06052f9dcb720d4d250f876450
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
259 lines
9.7 KiB
CMake
259 lines
9.7 KiB
CMake
## Set a default build type if none was specified
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# Set the QT_IS_BUILDING_QT variable so we can verify whether we are building
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# Qt from source
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set(QT_BUILDING_QT TRUE CACHE
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TYPE STRING "When this is present and set to true, it signals that we are building Qt from source.")
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# Pre-calculate the developer_build feature if it's set by the user via INPUT_developer_build
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if(NOT FEATURE_developer_build AND INPUT_developer_build
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AND NOT "${INPUT_developer_build}" STREQUAL "undefined")
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set(FEATURE_developer_build ON)
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endif()
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set(_default_build_type "Release")
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if(FEATURE_developer_build)
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set(_default_build_type "Debug")
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endif()
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# Reset content of extra build internal vars for each inclusion of QtSetup.
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unset(QT_EXTRA_BUILD_INTERNALS_VARS)
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# Save the global property in a variable to make it available to feature conditions.
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get_property(QT_GENERATOR_IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
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if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
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message(STATUS "Setting build type to '${_default_build_type}' as none was specified.")
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set(CMAKE_BUILD_TYPE "${_default_build_type}" CACHE STRING "Choose the type of build." FORCE)
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set_property(CACHE CMAKE_BUILD_TYPE
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PROPERTY STRINGS
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"Debug" "Release" "MinSizeRel" "RelWithDebInfo") # Set the possible values for cmake-gui.
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elseif(CMAKE_CONFIGURATION_TYPES)
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message(STATUS "Building for multiple configurations: ${CMAKE_CONFIGURATION_TYPES}.")
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message(STATUS "Main configuration is: ${QT_MULTI_CONFIG_FIRST_CONFIG}.")
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if(CMAKE_NINJA_MULTI_DEFAULT_BUILD_TYPE)
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message(STATUS
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"Default build configuration set to '${CMAKE_NINJA_MULTI_DEFAULT_BUILD_TYPE}'.")
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endif()
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else()
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message(STATUS "CMAKE_BUILD_TYPE was set to: '${CMAKE_BUILD_TYPE}'")
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endif()
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# Appends a 'debug postfix' to library targets (not executables)
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# e.g. lib/libQt6DBus_debug.5.12.0.dylib
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if(WIN32)
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if(MINGW)
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# On MinGW we don't have "d" suffix for debug libraries like on Linux,
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# unless we're building debug and release libraries in one go.
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if(QT_GENERATOR_IS_MULTI_CONFIG)
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set(CMAKE_DEBUG_POSTFIX "d")
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endif()
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else()
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set(CMAKE_DEBUG_POSTFIX "d")
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endif()
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elseif(APPLE)
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set(CMAKE_DEBUG_POSTFIX "_debug")
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set(CMAKE_FRAMEWORK_MULTI_CONFIG_POSTFIX_DEBUG "_debug")
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endif()
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## Position independent code:
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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# Do not relink dependent libraries when no header has changed:
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set(CMAKE_LINK_DEPENDS_NO_SHARED ON)
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# Detect non-prefix builds: either when the qtbase install prefix is set to the binary dir
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# or when a developer build is explicitly enabled and no install prefix is specified.
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# This detection only happens when building qtbase, and later is propagated via the generated
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# QtBuildInternalsExtra.cmake file.
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if (PROJECT_NAME STREQUAL "QtBase" AND NOT QT_BUILD_STANDALONE_TESTS)
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if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
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if(FEATURE_developer_build)
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# Handle non-prefix builds by setting the CMake install prefix to point to qtbase's
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# build dir. While building another repo (like qtsvg) the CMAKE_PREFIX_PATH should be
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# set on the command line to point to the qtbase build dir.
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set(__qt_default_prefix "${QtBase_BINARY_DIR}")
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else()
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if(CMAKE_HOST_WIN32)
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set(__qt_default_prefix "C:/Qt/")
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else()
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set(__qt_default_prefix "/usr/local/")
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endif()
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string(APPEND __qt_default_prefix
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"Qt-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
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endif()
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set(CMAKE_INSTALL_PREFIX ${__qt_default_prefix} CACHE PATH
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"Install path prefix, prepended onto install directories." FORCE)
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unset(__qt_default_prefix)
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endif()
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if(CMAKE_CROSSCOMPILING)
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set(__qt_prefix "${CMAKE_STAGING_PREFIX}")
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else()
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set(__qt_prefix "")
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endif()
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if(__qt_prefix STREQUAL "")
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set(__qt_prefix "${CMAKE_INSTALL_PREFIX}")
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endif()
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if(__qt_prefix STREQUAL QtBase_BINARY_DIR)
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set(__qt_will_install_value OFF)
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else()
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set(__qt_will_install_value ON)
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endif()
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set(QT_WILL_INSTALL ${__qt_will_install_value} CACHE BOOL
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"Boolean indicating if doing a Qt prefix build (vs non-prefix build)." FORCE)
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unset(__qt_prefix)
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unset(__qt_will_install_value)
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endif()
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# Specify the QT_SOURCE_TREE only when building qtbase. Needed by some tests when the tests are
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# built as part of the project, and not standalone. For standalone tests, the value is set in
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# QtBuildInternalsExtra.cmake.
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if(PROJECT_NAME STREQUAL "QtBase")
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set(QT_SOURCE_TREE "${QtBase_SOURCE_DIR}" CACHE PATH
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"A path to the source tree of the previously configured QtBase project." FORCE)
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endif()
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if(FEATURE_developer_build)
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if(DEFINED QT_CMAKE_EXPORT_COMPILE_COMMANDS)
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set(CMAKE_EXPORT_COMPILE_COMMANDS ${QT_CMAKE_EXPORT_COMPILE_COMMANDS})
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else()
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
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endif()
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set(_qt_build_tests_default ON)
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set(__build_benchmarks ON)
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# Tests are not built by default with qmake for iOS and friends, and thus the overall build
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# tends to fail. Disable them by default when targeting uikit.
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if(UIKIT OR ANDROID)
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set(_qt_build_tests_default OFF)
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endif()
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# Disable benchmarks for single configuration generators which do not build
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# with release configuration.
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if (CMAKE_BUILD_TYPE AND CMAKE_BUILD_TYPE STREQUAL Debug)
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set(__build_benchmarks OFF)
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endif()
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else()
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set(_qt_build_tests_default OFF)
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set(__build_benchmarks OFF)
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endif()
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# Build Benchmarks
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option(QT_BUILD_BENCHMARKS "Build Qt Benchmarks" ${__build_benchmarks})
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if(QT_BUILD_BENCHMARKS)
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set(_qt_build_tests_default ON)
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endif()
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## Set up testing
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option(QT_BUILD_TESTS "Build the testing tree." ${_qt_build_tests_default})
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unset(_qt_build_tests_default)
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option(QT_BUILD_TESTS_BY_DEFAULT "Should tests be built as part of the default 'all' target." ON)
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if(QT_BUILD_STANDALONE_TESTS)
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# BuildInternals might have set it to OFF on initial configuration. So force it to ON when
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# building standalone tests.
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set(QT_BUILD_TESTS ON CACHE BOOL "Build the testing tree." FORCE)
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# Also force the tests to be built as part of the default build target.
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set(QT_BUILD_TESTS_BY_DEFAULT ON CACHE BOOL
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"Should tests be built as part of the default 'all' target." FORCE)
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endif()
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set(BUILD_TESTING ${QT_BUILD_TESTS} CACHE INTERNAL "")
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# When cross-building, we don't build tools by default. Sometimes this also covers Qt apps as well.
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# Like in qttools/assistant/assistant.pro, load(qt_app), which is guarded by a qtNomakeTools() call.
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set(_qt_build_tools_by_default_default ON)
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if(CMAKE_CROSSCOMPILING AND NOT QT_BUILD_TOOLS_WHEN_CROSSCOMPILING)
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set(_qt_build_tools_by_default_default OFF)
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endif()
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option(QT_BUILD_TOOLS_BY_DEFAULT "Should tools be built as part of the default 'all' target."
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"${_qt_build_tools_by_default_default}")
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unset(_qt_build_tools_by_default_default)
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include(CTest)
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enable_testing()
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option(QT_BUILD_EXAMPLES "Build Qt examples" OFF)
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option(QT_BUILD_EXAMPLES_BY_DEFAULT "Should examples be built as part of the default 'all' target." ON)
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option(QT_BUILD_EXAMPLES_AS_EXTERNAL "Should examples be built as ExternalProjects." ON)
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option(QT_BUILD_MANUAL_TESTS "Build Qt manual tests" OFF)
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option(QT_BUILD_MINIMAL_STATIC_TESTS "Build minimal subset of tests for static Qt builds" OFF)
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## Find host tools (if non native):
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set(QT_HOST_PATH "" CACHE PATH "Installed Qt host directory path, used for cross compiling.")
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if (CMAKE_CROSSCOMPILING)
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if(NOT IS_DIRECTORY "${QT_HOST_PATH}")
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message(FATAL_ERROR "You need to set QT_HOST_PATH to cross compile Qt.")
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endif()
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endif()
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if(NOT "${QT_HOST_PATH}" STREQUAL "")
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find_package(${INSTALL_CMAKE_NAMESPACE}HostInfo
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CONFIG
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REQUIRED
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PATHS "${QT_HOST_PATH}"
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"${QT_HOST_PATH_CMAKE_DIR}"
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NO_CMAKE_FIND_ROOT_PATH
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NO_DEFAULT_PATH)
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endif()
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## Android platform settings
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if(ANDROID)
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include(QtPlatformAndroid)
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endif()
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## qt_add_module and co.:
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include(QtBuild)
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## Qt Feature support:
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include(QtBuildInformation)
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include(QtFeature)
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## Compiler optimization flags:
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include(QtCompilerOptimization)
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## Compiler flags:
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include(QtCompilerFlags)
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qt_set_language_standards()
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option(QT_USE_CCACHE "Enable the use of ccache")
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if(QT_USE_CCACHE)
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find_program(CCACHE_PROGRAM ccache)
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if(CCACHE_PROGRAM)
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set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_OBJC_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_OBJCXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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else()
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message(FATAL_ERROR "Ccache use was requested, but the program was not found.")
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endif()
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endif()
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# We need to clean up QT_FEATURE_*, but only once per configuration cycle
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get_property(qt_feature_clean GLOBAL PROPERTY _qt_feature_clean)
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if(NOT qt_feature_clean)
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message(STATUS "Check for feature set changes")
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set_property(GLOBAL PROPERTY _qt_feature_clean TRUE)
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foreach(feature ${QT_KNOWN_FEATURES})
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if(DEFINED "FEATURE_${feature}" AND
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NOT "${QT_FEATURE_${feature}}" STREQUAL "${FEATURE_${feature}}")
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message(" '${feature}' is changed from ${QT_FEATURE_${feature}} \
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to ${FEATURE_${feature}}")
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set(dirty_build TRUE)
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endif()
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unset("QT_FEATURE_${feature}" CACHE)
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endforeach()
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set(QT_KNOWN_FEATURES "" CACHE INTERNAL "" FORCE)
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if(dirty_build)
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set_property(GLOBAL PROPERTY _qt_dirty_build TRUE)
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message(WARNING "Re-configuring in existing build folder. \
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Some features will be re-evaluated automatically.")
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endif()
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endif()
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