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qt5base-lts/cmake/QtModuleDependencies.cmake.in

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Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
# Save old module path, and append a new path that points to the copied over Find modules
# so that find_dependency() can find the third party packages.
set(old_CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH}")
list(APPEND CMAKE_MODULE_PATH "${_import_prefix}/../@INSTALL_CMAKE_NAMESPACE@")
list(APPEND CMAKE_MODULE_PATH "${_import_prefix}/../@INSTALL_CMAKE_NAMESPACE@/3rdparty/extra-cmake-modules/find-modules")
cmake: register plug-ins, create dependencies file This commit introduces infrastructure work to allow static builds of Qt to handle importing of plug-ins. Change-Id: Ife0ca3ca7276ea8ec96fe0eb6adf934fad7620ec Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-05-03 14:03:15 +00:00
list(APPEND CMAKE_MODULE_PATH "${_import_prefix}/../@INSTALL_CMAKE_NAMESPACE@/3rdparty/kwin")
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
# note: _third_party_deps example: "ICU\\;1.0\\;i18n uc data;ZLIB\\;\\;"
set(_third_party_deps "@third_party_deps@")
foreach(_target_dep ${_third_party_deps})
list(GET _target_dep 0 pkg)
list(GET _target_dep 1 version)
list(GET _target_dep 2 components)
set(find_package_args "${pkg}")
if(version)
list(APPEND find_package_args "${version}")
endif()
if(components)
list(APPEND find_package_args "COMPONENTS" ${components})
endif()
Fix static usage requirements for XcbQpa In particular, Qt targets extended with other qt targets (eg. Qt::VulkanSupport or Qt::LinuxAccessibilitySupport) after the first add_qt_module were not taken into account when generating Depends files. Note that this patch updates the minimum required version to CMake 3.15 Change-Id: I747deedd4d59e385876bc1a834ef9bdb6078911b Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-05 08:08:44 +00:00
find_dependency(${find_package_args})
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
if (NOT ${pkg}_FOUND)
set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
return()
endif()
endforeach()
# Restore old module path.
set(CMAKE_MODULE_PATH "${old_CMAKE_MODULE_PATH}")
Make module package depend on its own tool package Also make the tool package depend on all tool packages that correspond to the qt module dependencies. So find_package(Qt5Widgets) implicitly calls find_package(Qt5WidgetTools). And find_package(Qt5WidgetsTools) will call find_package for Qt5GuiTools, and Qt5CoreTools. This enhances the user experience, so that in modules like qtsvg, you don't have to specify both find_package(Qt5Widgets) and find_package(Qt5WidgetsTools), but only the former. Or when cross building, you only need to specify Qt5WidgetTools, to get both Core and Gui tools. Change-Id: Ib1c5173a5b97584a52e144c22e38e90a712f727a Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-29 12:36:25 +00:00
# Find Qt tool package.
set(_tool_deps "@main_module_tool_deps@")
foreach(_target_dep ${_tool_deps})
list(GET _target_dep 0 pkg)
list(GET _target_dep 1 version)
Fix static usage requirements for XcbQpa In particular, Qt targets extended with other qt targets (eg. Qt::VulkanSupport or Qt::LinuxAccessibilitySupport) after the first add_qt_module were not taken into account when generating Depends files. Note that this patch updates the minimum required version to CMake 3.15 Change-Id: I747deedd4d59e385876bc1a834ef9bdb6078911b Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-05 08:08:44 +00:00
find_dependency(${pkg} ${version})
Make module package depend on its own tool package Also make the tool package depend on all tool packages that correspond to the qt module dependencies. So find_package(Qt5Widgets) implicitly calls find_package(Qt5WidgetTools). And find_package(Qt5WidgetsTools) will call find_package for Qt5GuiTools, and Qt5CoreTools. This enhances the user experience, so that in modules like qtsvg, you don't have to specify both find_package(Qt5Widgets) and find_package(Qt5WidgetsTools), but only the former. Or when cross building, you only need to specify Qt5WidgetTools, to get both Core and Gui tools. Change-Id: Ib1c5173a5b97584a52e144c22e38e90a712f727a Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-29 12:36:25 +00:00
if (NOT ${pkg}_FOUND)
set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
return()
endif()
endforeach()
Merge remote-tracking branch 'origin/wip/qt6' into wip/cmake This changes many different CMake places to mention Qt6 instead of Qt5. Note that some old qt5 cmake config files in corelib are probably not needed anymore, but I still renamed and kept them for now. Change-Id: Ie69e81540386a5af153f76c0242e18d48211bec4
2019-06-14 10:59:07 +00:00
# note: target_deps example: "Qt6Core\;5.12.0;Qt6Gui\;5.12.0"
cmake: move dependencies accumulation in QtPostProcess.cmake This is needed because dependencies added after add_qt_module with extend_target are currently not taken into account. Task-number: QTBUG-75538 Change-Id: I2c72207fb88b2480e41a2c8550978fb194275617 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-05-03 09:38:41 +00:00
set(_target_deps "@target_deps@")
foreach(_target_dep ${_target_deps})
list(GET _target_dep 0 pkg)
list(GET _target_dep 1 version)
if (NOT ${pkg}_FOUND)
find_dependency(${pkg} ${version}
PATHS "${CMAKE_CURRENT_LIST_DIR}/.." NO_DEFAULT_PATH
)
endif()
if (NOT ${pkg}_FOUND)
set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
return()
endif()
endforeach()
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