9b9a2398f3
Previously QT_CMAKE_EXPORT_NAMESPACE was set by calling
find_package(QtBuildInternals) at repo dir scope, even in a top-level
build.
Starting with ddcafa0a51c65d86f6b5481f06fce5faeb75920d in
qtdeclarative, we now have a deferred call of
_qt_internal_write_deferred_qmlls_build_ini_file in the
CMAKE_BINARY_DIR scope, which lacks the QT_CMAKE_EXPORT_NAMESPACE
variable.
This caused errors in a top-level standalone tests build:
Error evaluating generator expression $
No target "::qtpaths"
CMakeLists.txt:DEFERRED
To avoid the error we now set QT_CMAKE_EXPORT_NAMESPACE in the
top level scope.
To avoid duplicating the code into the QtBaseTopLevelHelpers,
we extract the qt_internal_top_level_setup_cmake_and_export_namespace
function into a new QtBuildInternalsHelpers.cmake file, which is
included by both QtBaseTopLevelHelpers.cmake and
QtBuildInternalsConfig.cmake.
We also copy and install that file.
This has less side effects than trying to call
find_package(QtBuildInternals) in the top-level scope.
Pick-to: 6.10
Change-Id: I8e54e21d3f07ee86860cad49d6e43e0fdefbcee3
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
127 lines
4.8 KiB
CMake
127 lines
4.8 KiB
CMake
# Copyright (C) 2023 The Qt Company Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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# There are three necessary copies of this macro in
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# qtbase/cmake/QtBaseHelpers.cmake
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# qtbase/cmake/QtBaseTopLevelHelpers.cmake
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# qtbase/cmake/QtBuildRepoHelpers.cmake
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macro(qt_internal_top_level_setup_standalone_parts)
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# A generic marker for any kind of standalone builds, either tests or examples.
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if(NOT DEFINED QT_INTERNAL_BUILD_STANDALONE_PARTS
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AND (QT_BUILD_STANDALONE_TESTS OR QT_BUILD_STANDALONE_EXAMPLES))
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set(QT_INTERNAL_BUILD_STANDALONE_PARTS TRUE CACHE INTERNAL
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"Whether standalone tests or examples are being built")
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endif()
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endmacro()
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# Depends on __qt6_qtbase_src_path being set in the top-level dir.
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macro(qt_internal_top_level_setup_autodetect)
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qt_internal_top_level_setup_standalone_parts()
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# Run platform auto-detection /before/ the first project() call and thus
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# before the toolchain file is loaded.
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# Don't run auto-detection when doing standalone tests. In that case, the detection
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# results are taken from either QtBuildInternals or the qt.toolchain.cmake file.
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if(NOT QT_INTERNAL_BUILD_STANDALONE_PARTS)
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set(__qt6_auto_detect_path "${__qt6_qtbase_src_path}/cmake/QtAutoDetect.cmake")
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if(NOT EXISTS "${__qt6_auto_detect_path}")
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message(FATAL_ERROR "Required file does not exist: '${__qt6_auto_detect_path}'")
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endif()
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include("${__qt6_auto_detect_path}")
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endif()
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endmacro()
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macro(qt_internal_top_level_setup_after_project)
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qt_internal_top_level_setup_testing()
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qt_internal_top_level_setup_cmake_and_export_namespace()
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endmacro()
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# Setting QT_CMAKE_EXPORT_NAMESPACE in the top-level scope is needed for any deferred call that is
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# run on the top-level scope (CMAKE_BINARY_DIR).
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macro(qt_internal_top_level_setup_cmake_and_export_namespace)
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# Include the file that defines qt_internal_setup_cmake_and_export_namespace.
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# We don't try to call find_package(QtBuildInternals) because that has a lot more side
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# effects.
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set(__qt6_build_internals_helpers_path
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"${__qt6_qtbase_src_path}/cmake/QtBuildInternals/QtBuildInternalsHelpers.cmake")
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if(NOT EXISTS "${__qt6_build_internals_helpers_path}")
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message(FATAL_ERROR "Required file does not exist: '${__qt6_build_internals_helpers_path}'")
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endif()
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include("${__qt6_build_internals_helpers_path}")
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qt_internal_setup_cmake_and_export_namespace()
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endmacro()
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macro(qt_internal_top_level_setup_testing)
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# Required so we can call ctest from the root build directory
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enable_testing()
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endmacro()
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# Depends on __qt6_qtbase_src_path being set in the top-level dir.
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macro(qt_internal_top_level_setup_cmake_module_path)
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if (NOT QT_INTERNAL_BUILD_STANDALONE_PARTS)
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set(__qt6_cmake_module_path "${__qt6_qtbase_src_path}/cmake")
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if(NOT EXISTS "${__qt6_cmake_module_path}")
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message(FATAL_ERROR "Required directory does not exist: '${__qt6_cmake_module_path}'")
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endif()
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list(APPEND CMAKE_MODULE_PATH "${__qt6_cmake_module_path}")
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list(APPEND CMAKE_MODULE_PATH
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"${__qt6_cmake_module_path}/3rdparty/extra-cmake-modules/find-modules")
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list(APPEND CMAKE_MODULE_PATH "${__qt6_cmake_module_path}/3rdparty/kwin")
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endif()
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endmacro()
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macro(qt_internal_top_level_before_build_submodules)
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qt_internal_top_level_setup_no_create_targets()
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endmacro()
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macro(qt_internal_top_level_setup_no_create_targets)
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# Also make sure the CMake config files do not recreate the already-existing targets
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if (NOT QT_INTERNAL_BUILD_STANDALONE_PARTS)
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set(QT_NO_CREATE_TARGETS TRUE)
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endif()
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endmacro()
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macro(qt_internal_top_level_end)
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if(QT_BUILD_TESTS)
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qt_internal_finalize_test_batch_blacklist()
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endif()
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qt_internal_print_top_level_info()
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# Depends on QtBuildInternalsConfig being included, which is the case whenver any repo is
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# configured.
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qt_internal_qt_configure_end()
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if(QT_WILL_INSTALL AND QT_INSTALL_CONFIG_INFO_FILES)
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qt_install(
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FILES
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"${CMAKE_BINARY_DIR}/config.opt"
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"${CMAKE_BINARY_DIR}/config.summary"
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DESTINATION ${INSTALL_DATADIR}
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)
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endif()
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endmacro()
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function(qt_internal_print_top_level_info)
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if(NOT QT_INTERNAL_BUILD_STANDALONE_PARTS)
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# Display a summary of everything
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include(QtBuildInformation)
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include(QtPlatformSupport)
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qt_print_feature_summary()
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qt_print_build_instructions()
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endif()
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endfunction()
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macro(qt_internal_top_level_after_add_subdirectory)
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if(module STREQUAL "qtbase")
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if (NOT QT_INTERNAL_BUILD_STANDALONE_PARTS)
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list(APPEND CMAKE_PREFIX_PATH "${QtBase_BINARY_DIR}/${INSTALL_LIBDIR}/cmake")
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list(APPEND CMAKE_FIND_ROOT_PATH "${QtBase_BINARY_DIR}")
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endif()
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endif()
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endmacro()
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