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qt5base-lts/cmake/QtPlugins.cmake.in

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Implement qtbase fixes for superbuilds Change-Id: I0d3445cf0740e3925fa9342dac4d07892518afe5 Reviewed-by: Qt CMake Build Bot Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2019-11-21 12:33:28 +00:00
include_guard(DIRECTORY)
cmake: allow client apps to load static plug-ins Based in part on Kyle Edwards's implementation : https://codereview.qt-project.org/c/qt/qtbase/+/243731 Example : ``` cmake_minimum_required(VERSION 3.15) project(foo) add_executable(foo main.cpp) find_package(ICU COMPONENTS i18n uc data REQUIRED) find_package(Qt6 COMPONENTS Core Gui REQUIRED) target_link_libraries(foo Qt6::Core Qt6::Gui) qt_import_plugins(foo INCLUDE Qt6::qxcb EXCLUDE Qt6::qgtk3 Qt6::qeglfs-kms-integration Qt6::qjpeg ) ``` Change-Id: If7736c42f669f7d7f43052cae59c28fc7fcb4156 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-07 07:13:31 +00:00
@QT_MODULE_PLUGIN_INCLUDES@
Only generate and add static plugin imports once per module target Projects may call find_package(Qt6 ...) multiple times. When enabling examples and tests, this happens a lot. For a statically built Qt, for modules that have plugins (e.g. Gui), every time the module's config file was loaded, it was generating and adding another copy of the import plugin sources to the module target. These accumulated and created many duplicates, which in turn blew out generation time and made the build very inefficient. This change checks whether the import plugin sources have already been processed for the module target and ensures they are only added once. It records its status on the target itself so that both local and global targets are supported. Fixes: QTBUG-90465 Change-Id: I1f45b1ee771a933ee755d44f1e983d6d9113dad0 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-20 07:05:25 +00:00
# Use a function to hide all the temporary variables we use so they don't leak
# out into the consuming scope
function(__qt_internal_add_static_plugins_once)
cmake: allow client apps to load static plug-ins Based in part on Kyle Edwards's implementation : https://codereview.qt-project.org/c/qt/qtbase/+/243731 Example : ``` cmake_minimum_required(VERSION 3.15) project(foo) add_executable(foo main.cpp) find_package(ICU COMPONENTS i18n uc data REQUIRED) find_package(Qt6 COMPONENTS Core Gui REQUIRED) target_link_libraries(foo Qt6::Core Qt6::Gui) qt_import_plugins(foo INCLUDE Qt6::qxcb EXCLUDE Qt6::qgtk3 Qt6::qeglfs-kms-integration Qt6::qjpeg ) ``` Change-Id: If7736c42f669f7d7f43052cae59c28fc7fcb4156 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-07 07:13:31 +00:00
set(_module_target "@INSTALL_CMAKE_NAMESPACE@::@QT_MODULE@")
Do not export the QT_PLUGINS target property of Qt modules This property is dynamically determined and set in the Qt6${module-name}PluginsConfig.cmake files now. There is no need anymore to export this property. Change-Id: I2d164864c4099034b88f9ad852eae8b9f9e55f8b Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2021-01-07 16:26:55 +00:00
set(_qt_plugins "")
Fix loading of Qt6*Plugin.cmake files of per-repo builds When doing a per-repository build of Qt, as it is done for the installer packages, the build of qtbase has no knowledge of plugins that might be built and installed from other repositories. That means we must not write a fixed list of known plugins when exporting Qt modules of qtbase. In particular, qtsvg adds imageformat plugins that are supposed to be picked up by qtbase's QtGui module when linking a project against a statically linked Qt. ${install-prefix}/lib/cmake/Qt6Gui/Qt6GuiPlugins.cmake missed the include statements for qtsvg's plugin config files and operated on a fixed list of plugins, all from qtbase. Apart from that, the Qt6::Gui target's property QT_PLUGINS did only contain the qtbase plugins. This patch fixes the situation in the following way: 1. All Qt6*PluginConfig.cmake files in ${install-prefix}/lib/cmake/Qt6Gui are detected and included. 2. From those file names, the target names of the plugins are deduced. This is safe as the file name of those generated files is a direct result of the plugin's target name. 3. The QT_PLUGINS property of the module is updated with the detected plugin target names. Fixes: QTBUG-89643 Change-Id: Ifc3c39aa9948277ead5ebb209ec5eff64746308b Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2021-01-07 15:55:51 +00:00
Fix static top-level build Commit d0071a4f871 broke static top-level builds: CMake Error at .../qtbase/lib/cmake/Qt6Gui/Qt6GuiPlugins.cmake:17 (set_property): set_property can not be used on an ALIAS target. Fixed by moving the un-aliasing of the target before the set_property call. Pick-to: 6.0 Change-Id: I96c731353798a58ff9b3a664f3614ef03c897dcb Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2021-01-21 16:05:19 +00:00
# Properties can't be set on aliased targets, so make sure to unalias the target. This is needed
# when Qt examples are built as part of the Qt build itself.
get_target_property(_aliased_target ${_module_target} ALIASED_TARGET)
if(_aliased_target)
set(_module_target ${_aliased_target})
endif()
CMake: Introduce finalizer mode handling of static plugins Allow linking all plugin initializer object libraries directly into the final target (executable or shared library). The finalizer mode is triggered when the project adds a call to qt_import_plugins, as well when the project has an explicit call to qt_finalize_executable or when it is defer called by CMake 3.19+. Otherwise the old non-finalizer mode is used, where each plugin initializer object library is propagated via the usage requirements of its associated module. A user can explicitly opt in or out of the new mode by calling qt_enable_import_plugins_finalizer_mode(target TRUE/FALSE) The implementation, at configure time, recursively collects all dependencies of the target to extract a list of used Qt modules. From each module we extract its list of associated plugins and their genex conditions. These genexes are used to conditionally link the plugins and the initializers. Renamed QT_PLUGINS property to _qt_plugins, so we can safely query the property even on INTERFACE libraries with lower CMake versions. QT_PLUGINS is kept for backwards compatibility with projects already using it, but should be removed in Qt 7. The upside of the finalizer mode is that it avoids creating link cycles (e.g. Gui -> SvgPlugin -> Gui case) which causes CMake to duplicate the library on the link line, slowing down link time as well as possibly breaking link order dependencies. The downside is that finalizer mode can't cope with generator expressions at the moment. So if a Qt module target is wrapped in a generator expression, it's plugins will not be detected and thus linked. Task-number: QTBUG-80863 Task-number: QTBUG-92933 Change-Id: Ic40c8ae5807a154ed18fcac18b25f00864c8f143 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-28 14:27:19 +00:00
# Include all PluginConfig.cmake files and update the _qt_plugins and QT_PLUGINS property of
# the module. The underscored version is the one we will use going forward to have compatibility
# with INTERFACE libraries. QT_PLUGINS is now deprecated and only kept so that we don't break
# existing projects using it (like CMake itself).
Fix loading of Qt6*Plugin.cmake files of per-repo builds When doing a per-repository build of Qt, as it is done for the installer packages, the build of qtbase has no knowledge of plugins that might be built and installed from other repositories. That means we must not write a fixed list of known plugins when exporting Qt modules of qtbase. In particular, qtsvg adds imageformat plugins that are supposed to be picked up by qtbase's QtGui module when linking a project against a statically linked Qt. ${install-prefix}/lib/cmake/Qt6Gui/Qt6GuiPlugins.cmake missed the include statements for qtsvg's plugin config files and operated on a fixed list of plugins, all from qtbase. Apart from that, the Qt6::Gui target's property QT_PLUGINS did only contain the qtbase plugins. This patch fixes the situation in the following way: 1. All Qt6*PluginConfig.cmake files in ${install-prefix}/lib/cmake/Qt6Gui are detected and included. 2. From those file names, the target names of the plugins are deduced. This is safe as the file name of those generated files is a direct result of the plugin's target name. 3. The QT_PLUGINS property of the module is updated with the detected plugin target names. Fixes: QTBUG-89643 Change-Id: Ifc3c39aa9948277ead5ebb209ec5eff64746308b Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2021-01-07 15:55:51 +00:00
file(GLOB _qt_plugin_config_files "${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@*PluginConfig.cmake")
foreach(_config_file ${_qt_plugin_config_files})
string(REGEX REPLACE "^.*/@INSTALL_CMAKE_NAMESPACE@(.*Plugin)Config.cmake$" "\\1" _qt_plugin "${_config_file}")
include("${_config_file}")
Fix error when re-configuring an already installed Qt repository When building and installing a Qt repo that provides plugins for a Qt module within a different repository (for example, qtimageformats providing imageformat plugins for QtGui), re-configuring that repository would result in configuration errors like "add_library cannot create ALIAS target "Qt6::QTgaPlugin" because another target with the same name already exists." This happened, because the find_package(Qt6 COMPONENTS Gui) calls pulled in the Qt6*PluginConfig.cmake files that create imported targets for the plugins we want to build. To fix this, when building Qt, we now load only plugins that are provided by repositories the currently building repository depends on. We read the repo dependencies from dependencies.yaml when the Qt6BuildInternals package is loaded, but only in static builds and only if we're currently building a Qt repository. To find out whether we're building a Qt repository, we check whether QT_REPO_MODULE_VERSION is defined. We cannot check QT_BUILDING_QT, because that variable is not available for the first find_package calls in the repository's top-level project file. In each Qt6*PluginConfig.cmake file, we bail out if the plugin's repository is not one of the ones in QT_REPO_DEPENDENCIES. Fixes: QTBUG-86670 Fixes: QTBUG-91887 Change-Id: I8f6c8398032227032742f1ca019e983ff2bcd745 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-03-22 19:43:25 +00:00
if(TARGET "@INSTALL_CMAKE_NAMESPACE@::${_qt_plugin}")
list(APPEND _qt_plugins ${_qt_plugin})
endif()
Fix loading of Qt6*Plugin.cmake files of per-repo builds When doing a per-repository build of Qt, as it is done for the installer packages, the build of qtbase has no knowledge of plugins that might be built and installed from other repositories. That means we must not write a fixed list of known plugins when exporting Qt modules of qtbase. In particular, qtsvg adds imageformat plugins that are supposed to be picked up by qtbase's QtGui module when linking a project against a statically linked Qt. ${install-prefix}/lib/cmake/Qt6Gui/Qt6GuiPlugins.cmake missed the include statements for qtsvg's plugin config files and operated on a fixed list of plugins, all from qtbase. Apart from that, the Qt6::Gui target's property QT_PLUGINS did only contain the qtbase plugins. This patch fixes the situation in the following way: 1. All Qt6*PluginConfig.cmake files in ${install-prefix}/lib/cmake/Qt6Gui are detected and included. 2. From those file names, the target names of the plugins are deduced. This is safe as the file name of those generated files is a direct result of the plugin's target name. 3. The QT_PLUGINS property of the module is updated with the detected plugin target names. Fixes: QTBUG-89643 Change-Id: Ifc3c39aa9948277ead5ebb209ec5eff64746308b Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2021-01-07 15:55:51 +00:00
endforeach()
CMake: Introduce finalizer mode handling of static plugins Allow linking all plugin initializer object libraries directly into the final target (executable or shared library). The finalizer mode is triggered when the project adds a call to qt_import_plugins, as well when the project has an explicit call to qt_finalize_executable or when it is defer called by CMake 3.19+. Otherwise the old non-finalizer mode is used, where each plugin initializer object library is propagated via the usage requirements of its associated module. A user can explicitly opt in or out of the new mode by calling qt_enable_import_plugins_finalizer_mode(target TRUE/FALSE) The implementation, at configure time, recursively collects all dependencies of the target to extract a list of used Qt modules. From each module we extract its list of associated plugins and their genex conditions. These genexes are used to conditionally link the plugins and the initializers. Renamed QT_PLUGINS property to _qt_plugins, so we can safely query the property even on INTERFACE libraries with lower CMake versions. QT_PLUGINS is kept for backwards compatibility with projects already using it, but should be removed in Qt 7. The upside of the finalizer mode is that it avoids creating link cycles (e.g. Gui -> SvgPlugin -> Gui case) which causes CMake to duplicate the library on the link line, slowing down link time as well as possibly breaking link order dependencies. The downside is that finalizer mode can't cope with generator expressions at the moment. So if a Qt module target is wrapped in a generator expression, it's plugins will not be detected and thus linked. Task-number: QTBUG-80863 Task-number: QTBUG-92933 Change-Id: Ic40c8ae5807a154ed18fcac18b25f00864c8f143 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-28 14:27:19 +00:00
set_property(TARGET ${_module_target} PROPERTY _qt_plugins ${_qt_plugins})
# TODO: Deprecated. Remove in Qt 7.
Fix loading of Qt6*Plugin.cmake files of per-repo builds When doing a per-repository build of Qt, as it is done for the installer packages, the build of qtbase has no knowledge of plugins that might be built and installed from other repositories. That means we must not write a fixed list of known plugins when exporting Qt modules of qtbase. In particular, qtsvg adds imageformat plugins that are supposed to be picked up by qtbase's QtGui module when linking a project against a statically linked Qt. ${install-prefix}/lib/cmake/Qt6Gui/Qt6GuiPlugins.cmake missed the include statements for qtsvg's plugin config files and operated on a fixed list of plugins, all from qtbase. Apart from that, the Qt6::Gui target's property QT_PLUGINS did only contain the qtbase plugins. This patch fixes the situation in the following way: 1. All Qt6*PluginConfig.cmake files in ${install-prefix}/lib/cmake/Qt6Gui are detected and included. 2. From those file names, the target names of the plugins are deduced. This is safe as the file name of those generated files is a direct result of the plugin's target name. 3. The QT_PLUGINS property of the module is updated with the detected plugin target names. Fixes: QTBUG-89643 Change-Id: Ifc3c39aa9948277ead5ebb209ec5eff64746308b Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2021-01-07 15:55:51 +00:00
set_property(TARGET ${_module_target} PROPERTY QT_PLUGINS ${_qt_plugins})
Only generate and add static plugin imports once per module target Projects may call find_package(Qt6 ...) multiple times. When enabling examples and tests, this happens a lot. For a statically built Qt, for modules that have plugins (e.g. Gui), every time the module's config file was loaded, it was generating and adding another copy of the import plugin sources to the module target. These accumulated and created many duplicates, which in turn blew out generation time and made the build very inefficient. This change checks whether the import plugin sources have already been processed for the module target and ensures they are only added once. It records its status on the target itself so that both local and global targets are supported. Fixes: QTBUG-90465 Change-Id: I1f45b1ee771a933ee755d44f1e983d6d9113dad0 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-20 07:05:25 +00:00
get_target_property(_have_added_plugins_already ${_module_target} __qt_internal_plugins_added)
if(_have_added_plugins_already)
return()
endif()
cmake: allow client apps to load static plug-ins Based in part on Kyle Edwards's implementation : https://codereview.qt-project.org/c/qt/qtbase/+/243731 Example : ``` cmake_minimum_required(VERSION 3.15) project(foo) add_executable(foo main.cpp) find_package(ICU COMPONENTS i18n uc data REQUIRED) find_package(Qt6 COMPONENTS Core Gui REQUIRED) target_link_libraries(foo Qt6::Core Qt6::Gui) qt_import_plugins(foo INCLUDE Qt6::qxcb EXCLUDE Qt6::qgtk3 Qt6::qeglfs-kms-integration Qt6::qjpeg ) ``` Change-Id: If7736c42f669f7d7f43052cae59c28fc7fcb4156 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-07 07:13:31 +00:00
CMake: Refactor handling of static plugins Extract common static plugin handling functionality into a separate QtPublicPluginHelpers.cmake file which is loaded by the Qt6 package. Split the code into smaller functions that will be re-used by each templated QtPlugins.cmake.in file, rather than copy pasting the same code into each QtFooPlugins.cmake file. As a drive-by, handle QtFeatures.cmake and QtFeaturesCommon.cmake as public helper files just like QtPublicPluginHelpers.cmake. This makes it clearer that the functions are available outside the internal Qt build and also provides a way for not dumping new helper functions into Qt6CoreMacros.cmake. Task-number: QTBUG-92933 Change-Id: Id816ef009b4fac1cd317d3ef23f21b3530028067 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-28 13:25:18 +00:00
foreach(plugin_target ${_qt_plugins})
__qt_internal_plugin_get_plugin_type("${plugin_target}" __has_plugin_type __plugin_type)
if(NOT __has_plugin_type)
continue()
cmake: allow client apps to load static plug-ins Based in part on Kyle Edwards's implementation : https://codereview.qt-project.org/c/qt/qtbase/+/243731 Example : ``` cmake_minimum_required(VERSION 3.15) project(foo) add_executable(foo main.cpp) find_package(ICU COMPONENTS i18n uc data REQUIRED) find_package(Qt6 COMPONENTS Core Gui REQUIRED) target_link_libraries(foo Qt6::Core Qt6::Gui) qt_import_plugins(foo INCLUDE Qt6::qxcb EXCLUDE Qt6::qgtk3 Qt6::qeglfs-kms-integration Qt6::qjpeg ) ``` Change-Id: If7736c42f669f7d7f43052cae59c28fc7fcb4156 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-07 07:13:31 +00:00
endif()
CMake: Refactor handling of static plugins Extract common static plugin handling functionality into a separate QtPublicPluginHelpers.cmake file which is loaded by the Qt6 package. Split the code into smaller functions that will be re-used by each templated QtPlugins.cmake.in file, rather than copy pasting the same code into each QtFooPlugins.cmake file. As a drive-by, handle QtFeatures.cmake and QtFeaturesCommon.cmake as public helper files just like QtPublicPluginHelpers.cmake. This makes it clearer that the functions are available outside the internal Qt build and also provides a way for not dumping new helper functions into Qt6CoreMacros.cmake. Task-number: QTBUG-92933 Change-Id: Id816ef009b4fac1cd317d3ef23f21b3530028067 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-28 13:25:18 +00:00
__qt_internal_plugin_has_class_name("${plugin_target}" __has_class_name)
if(NOT __has_class_name)
continue()
Match qt_import_plugin API with qt5's Some work was needed to make the plug-in types, and which plug-ins are available for each type in client code. Change-Id: Ib71feca31069deca3d3f54c8613054f5f8ae410c Reviewed-by: Simon Hausmann <simon.hausmann@qt.io> Reviewed-by: Qt CMake Build Bot
2019-09-23 14:57:06 +00:00
endif()
CMake: Refactor handling of static plugins Extract common static plugin handling functionality into a separate QtPublicPluginHelpers.cmake file which is loaded by the Qt6 package. Split the code into smaller functions that will be re-used by each templated QtPlugins.cmake.in file, rather than copy pasting the same code into each QtFooPlugins.cmake file. As a drive-by, handle QtFeatures.cmake and QtFeaturesCommon.cmake as public helper files just like QtPublicPluginHelpers.cmake. This makes it clearer that the functions are available outside the internal Qt build and also provides a way for not dumping new helper functions into Qt6CoreMacros.cmake. Task-number: QTBUG-92933 Change-Id: Id816ef009b4fac1cd317d3ef23f21b3530028067 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-28 13:25:18 +00:00
list(APPEND "QT_ALL_PLUGINS_FOUND_BY_FIND_PACKAGE_${__plugin_type}" "${plugin_target}")
Match qt_import_plugin API with qt5's Some work was needed to make the plug-in types, and which plug-ins are available for each type in client code. Change-Id: Ib71feca31069deca3d3f54c8613054f5f8ae410c Reviewed-by: Simon Hausmann <simon.hausmann@qt.io> Reviewed-by: Qt CMake Build Bot
2019-09-23 14:57:06 +00:00
CMake: Refactor handling of static plugins Extract common static plugin handling functionality into a separate QtPublicPluginHelpers.cmake file which is loaded by the Qt6 package. Split the code into smaller functions that will be re-used by each templated QtPlugins.cmake.in file, rather than copy pasting the same code into each QtFooPlugins.cmake file. As a drive-by, handle QtFeatures.cmake and QtFeaturesCommon.cmake as public helper files just like QtPublicPluginHelpers.cmake. This makes it clearer that the functions are available outside the internal Qt build and also provides a way for not dumping new helper functions into Qt6CoreMacros.cmake. Task-number: QTBUG-92933 Change-Id: Id816ef009b4fac1cd317d3ef23f21b3530028067 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-28 13:25:18 +00:00
__qt_internal_add_static_plugin_linkage("${plugin_target}" "${_module_target}")
__qt_internal_add_static_plugin_import_macro(
"${plugin_target}" ${_module_target} "@QT_MODULE@")
cmake: allow client apps to load static plug-ins Based in part on Kyle Edwards's implementation : https://codereview.qt-project.org/c/qt/qtbase/+/243731 Example : ``` cmake_minimum_required(VERSION 3.15) project(foo) add_executable(foo main.cpp) find_package(ICU COMPONENTS i18n uc data REQUIRED) find_package(Qt6 COMPONENTS Core Gui REQUIRED) target_link_libraries(foo Qt6::Core Qt6::Gui) qt_import_plugins(foo INCLUDE Qt6::qxcb EXCLUDE Qt6::qgtk3 Qt6::qeglfs-kms-integration Qt6::qjpeg ) ``` Change-Id: If7736c42f669f7d7f43052cae59c28fc7fcb4156 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-07 07:13:31 +00:00
endforeach()
Only generate and add static plugin imports once per module target Projects may call find_package(Qt6 ...) multiple times. When enabling examples and tests, this happens a lot. For a statically built Qt, for modules that have plugins (e.g. Gui), every time the module's config file was loaded, it was generating and adding another copy of the import plugin sources to the module target. These accumulated and created many duplicates, which in turn blew out generation time and made the build very inefficient. This change checks whether the import plugin sources have already been processed for the module target and ensures they are only added once. It records its status on the target itself so that both local and global targets are supported. Fixes: QTBUG-90465 Change-Id: I1f45b1ee771a933ee755d44f1e983d6d9113dad0 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-20 07:05:25 +00:00
CMake: Refactor handling of static plugins Extract common static plugin handling functionality into a separate QtPublicPluginHelpers.cmake file which is loaded by the Qt6 package. Split the code into smaller functions that will be re-used by each templated QtPlugins.cmake.in file, rather than copy pasting the same code into each QtFooPlugins.cmake file. As a drive-by, handle QtFeatures.cmake and QtFeaturesCommon.cmake as public helper files just like QtPublicPluginHelpers.cmake. This makes it clearer that the functions are available outside the internal Qt build and also provides a way for not dumping new helper functions into Qt6CoreMacros.cmake. Task-number: QTBUG-92933 Change-Id: Id816ef009b4fac1cd317d3ef23f21b3530028067 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-28 13:25:18 +00:00
set("QT_ALL_PLUGINS_FOUND_BY_FIND_PACKAGE_${__plugin_type}"
"${QT_ALL_PLUGINS_FOUND_BY_FIND_PACKAGE_${__plugin_type}}"
PARENT_SCOPE
)
Only generate and add static plugin imports once per module target Projects may call find_package(Qt6 ...) multiple times. When enabling examples and tests, this happens a lot. For a statically built Qt, for modules that have plugins (e.g. Gui), every time the module's config file was loaded, it was generating and adding another copy of the import plugin sources to the module target. These accumulated and created many duplicates, which in turn blew out generation time and made the build very inefficient. This change checks whether the import plugin sources have already been processed for the module target and ensures they are only added once. It records its status on the target itself so that both local and global targets are supported. Fixes: QTBUG-90465 Change-Id: I1f45b1ee771a933ee755d44f1e983d6d9113dad0 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-20 07:05:25 +00:00
set_target_properties(${_module_target} PROPERTIES __qt_internal_plugins_added TRUE)
endfunction()
Avoid cyclic dependency between plugin and module *Config.cmake files In static per-repo builds, we have a mix of targets provided by packages and targets provided by the main build. For the builds that create the packages, we must avoid adding a dependency for the main module library target on its associated plugin targets or else the package config files end up with a cyclic dependency that cannot be resolved when something tries to consume them. This only happens for static builds because we have been attaching a linking relationship to the main module library that isn't really a true dependency, we attached it only for convenience of things linking to that module library. To preserve that convenience linking without breaking the config packages, we use the QT_NO_CREATE_TARGETS condition to prevent CMake seeing that relationship when generating the *Config.cmake files. Creating these relationships will be delayed until the plugin's *Config.cmake file is loaded, at which point it will add itself to the main module library's imported target INTERFACE (this was already done before, we just now rely solely on that). Task-number: QTBUG-90819 Pick-to: 6.1 Change-Id: Id725742182bcda64841be84fe1650bafb9151bb1 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-02-15 01:18:28 +00:00
if(NOT @BUILD_SHARED_LIBS@ AND NOT QT_NO_CREATE_TARGETS)
Only generate and add static plugin imports once per module target Projects may call find_package(Qt6 ...) multiple times. When enabling examples and tests, this happens a lot. For a statically built Qt, for modules that have plugins (e.g. Gui), every time the module's config file was loaded, it was generating and adding another copy of the import plugin sources to the module target. These accumulated and created many duplicates, which in turn blew out generation time and made the build very inefficient. This change checks whether the import plugin sources have already been processed for the module target and ensures they are only added once. It records its status on the target itself so that both local and global targets are supported. Fixes: QTBUG-90465 Change-Id: I1f45b1ee771a933ee755d44f1e983d6d9113dad0 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-20 07:05:25 +00:00
__qt_internal_add_static_plugins_once()
cmake: allow client apps to load static plug-ins Based in part on Kyle Edwards's implementation : https://codereview.qt-project.org/c/qt/qtbase/+/243731 Example : ``` cmake_minimum_required(VERSION 3.15) project(foo) add_executable(foo main.cpp) find_package(ICU COMPONENTS i18n uc data REQUIRED) find_package(Qt6 COMPONENTS Core Gui REQUIRED) target_link_libraries(foo Qt6::Core Qt6::Gui) qt_import_plugins(foo INCLUDE Qt6::qxcb EXCLUDE Qt6::qgtk3 Qt6::qeglfs-kms-integration Qt6::qjpeg ) ``` Change-Id: If7736c42f669f7d7f43052cae59c28fc7fcb4156 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-07 07:13:31 +00:00
endif()
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