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CMake: Fix tool targets for top-level cross-builds

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When loading the tool packages from the host Qt we must ignore
QT_NO_CREATE_TARGETS. Otherwise tool targets like Qt6::moc are not
available.

Task-number: QTBUG-85080
Change-Id: I2c8c8e68863f28a4f1d9cd2f70090455c49d8df2
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This commit is contained in:
Joerg Bornemann 2020-10-08 12:19:09 +02:00
parent 92f0f99c23
commit 13c4dfb274
1 changed files with 6 additions and 0 deletions
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6
cmake/QtToolHelpers.cmake
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@ -42,6 +42,11 @@ function(qt_internal_add_tool target_name)
set(tools_package_name "Qt6${arg_TOOLS_TARGET}Tools")
message(STATUS "Searching for tool '${full_name}' in package ${tools_package_name}.")
# Create the tool targets, even if QT_NO_CREATE_TARGETS is set.
# Otherwise targets like Qt6::moc are not available in a top-level cross-build.
set(BACKUP_QT_NO_CREATE_TARGETS ${QT_NO_CREATE_TARGETS})
set(QT_NO_CREATE_TARGETS OFF)
# Only search in path provided by QT_HOST_PATH. We need to do it with CMAKE_PREFIX_PATH
# instead of PATHS option, because any find_dependency call inside a Tools package would
# not get the proper prefix when using PATHS.
@ -64,6 +69,7 @@ function(qt_internal_add_tool target_name)
NO_CMAKE_SYSTEM_PACKAGE_REGISTRY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE "${BACKUP_CMAKE_FIND_ROOT_PATH_MODE_PACKAGE}")
set(CMAKE_PREFIX_PATH "${BACKUP_CMAKE_PREFIX_PATH}")
set(QT_NO_CREATE_TARGETS ${BACKUP_QT_NO_CREATE_TARGETS})
if(${${tools_package_name}_FOUND} AND TARGET ${full_name})
# Even if the tool is already visible, make sure that our modules remain associated