98e8180e56
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>
30 lines
1.1 KiB
CMake
30 lines
1.1 KiB
CMake
include_guard(DIRECTORY)
|
|
|
|
if(DEFINED QT_REPO_DEPENDENCIES)
|
|
# We're building a Qt repository.
|
|
# Skip this plugin if it has not been provided by one of this repo's dependencies.
|
|
string(TOLOWER "@PROJECT_NAME@" lower_case_project_name)
|
|
if(NOT lower_case_project_name IN_LIST QT_REPO_DEPENDENCIES)
|
|
return()
|
|
endif()
|
|
endif()
|
|
|
|
@PACKAGE_INIT@
|
|
|
|
cmake_minimum_required(VERSION @min_new_policy_version@...@max_new_policy_version@)
|
|
|
|
include(CMakeFindDependencyMacro)
|
|
|
|
get_filename_component(_import_prefix "${CMAKE_CURRENT_LIST_FILE}" PATH)
|
|
get_filename_component(_import_prefix "${_import_prefix}" REALPATH)
|
|
|
|
if (NOT QT_NO_CREATE_TARGETS)
|
|
# Find required dependencies, if any.
|
|
if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@Dependencies.cmake")
|
|
include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@Dependencies.cmake")
|
|
endif()
|
|
|
|
include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@Targets.cmake")
|
|
include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@AdditionalTargetInfo.cmake")
|
|
endif()
|