fb1b20eab3
CMakeLists.txt and .cmake files of significant size (more than 2 lines according to our check in tst_license.pl) now have the copyright and license header. Existing copyright statements remain intact Task-number: QTBUG-88621 Change-Id: I3b98cdc55ead806ec81ce09af9271f9b95af97fa Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
295 lines
14 KiB
CMake
295 lines
14 KiB
CMake
# Copyright (C) 2022 The Qt Company Ltd.
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# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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# Note that target_dep_list does not accept a list of values, but a var name that contains the
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# list of dependencies. See foreach block for reference.
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macro(_qt_internal_find_third_party_dependencies target target_dep_list)
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foreach(__qt_${target}_target_dep IN LISTS ${target_dep_list})
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list(GET __qt_${target}_target_dep 0 __qt_${target}_pkg)
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list(GET __qt_${target}_target_dep 1 __qt_${target}_is_optional)
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list(GET __qt_${target}_target_dep 2 __qt_${target}_version)
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list(GET __qt_${target}_target_dep 3 __qt_${target}_components)
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list(GET __qt_${target}_target_dep 4 __qt_${target}_optional_components)
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set(__qt_${target}_find_package_args "${__qt_${target}_pkg}")
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if(__qt_${target}_version)
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list(APPEND __qt_${target}_find_package_args "${__qt_${target}_version}")
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endif()
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if(__qt_${target}_components)
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string(REPLACE " " ";" __qt_${target}_components "${__qt_${target}_components}")
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list(APPEND __qt_${target}_find_package_args COMPONENTS ${__qt_${target}_components})
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endif()
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if(__qt_${target}_optional_components)
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string(REPLACE " " ";"
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__qt_${target}_optional_components "${__qt_${target}_optional_components}")
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list(APPEND __qt_${target}_find_package_args
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OPTIONAL_COMPONENTS ${__qt_${target}_optional_components})
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endif()
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_qt_internal_save_find_package_context_for_debugging(${target})
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if(__qt_${target}_is_optional)
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if(${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
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list(APPEND __qt_${target}_find_package_args QUIET)
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endif()
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find_package(${__qt_${target}_find_package_args})
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else()
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find_dependency(${__qt_${target}_find_package_args})
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endif()
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endforeach()
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endmacro()
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# Note that target_dep_list does not accept a list of values, but a var name that contains the
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# list of dependencies. See foreach block for reference.
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macro(_qt_internal_find_tool_dependencies target target_dep_list)
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if(NOT "${${target_dep_list}}" STREQUAL "" AND NOT "${QT_HOST_PATH}" STREQUAL "")
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# Make sure that the tools find the host tools first
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set(BACKUP_${target}_CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH})
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set(BACKUP_${target}_CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH})
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list(PREPEND CMAKE_PREFIX_PATH "${QT_HOST_PATH_CMAKE_DIR}"
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"${_qt_additional_host_packages_prefix_paths}")
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list(PREPEND CMAKE_FIND_ROOT_PATH "${QT_HOST_PATH}"
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"${_qt_additional_host_packages_root_paths}")
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endif()
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foreach(__qt_${target}_target_dep IN LISTS ${target_dep_list})
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list(GET __qt_${target}_target_dep 0 __qt_${target}_pkg)
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list(GET __qt_${target}_target_dep 1 __qt_${target}_version)
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unset(__qt_${target}_find_package_args)
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if(${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
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list(APPEND __qt_${target}_find_package_args QUIET)
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endif()
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_qt_internal_save_find_package_context_for_debugging(${target})
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find_package(${__qt_${target}_pkg}
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${__qt_${target}_version}
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${__qt_${target}_find_package_args}
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PATHS
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"${CMAKE_CURRENT_LIST_DIR}/.."
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"${_qt_cmake_dir}"
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${_qt_additional_packages_prefix_paths}
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)
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if (NOT ${__qt_${target}_pkg}_FOUND)
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set(${CMAKE_FIND_PACKAGE_NAME}_FOUND FALSE)
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set(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE
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"${CMAKE_FIND_PACKAGE_NAME} could not be found because dependency \
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${__qt_${target}_pkg} could not be found.")
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if(NOT "${QT_HOST_PATH}" STREQUAL "")
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set(CMAKE_PREFIX_PATH ${BACKUP_${target}_CMAKE_PREFIX_PATH})
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set(CMAKE_FIND_ROOT_PATH ${BACKUP_${target}_CMAKE_FIND_ROOT_PATH})
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endif()
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return()
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endif()
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endforeach()
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if(NOT "${${target_dep_list}}" STREQUAL "" AND NOT "${QT_HOST_PATH}" STREQUAL "")
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set(CMAKE_PREFIX_PATH ${BACKUP_${target}_CMAKE_PREFIX_PATH})
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set(CMAKE_FIND_ROOT_PATH ${BACKUP_${target}_CMAKE_FIND_ROOT_PATH})
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endif()
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endmacro()
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# Please note the target_dep_list accepts not the actual list values but the list names that
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# contain preformed dependencies. See foreach block for reference.
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# The same applies for find_dependency_path_list.
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macro(_qt_internal_find_qt_dependencies target target_dep_list find_dependency_path_list)
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foreach(__qt_${target}_target_dep IN LISTS ${target_dep_list})
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list(GET __qt_${target}_target_dep 0 __qt_${target}_pkg)
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list(GET __qt_${target}_target_dep 1 __qt_${target}_version)
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if (NOT ${__qt_${target}_pkg}_FOUND)
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# TODO: Remove Private handling once sufficient time has passed, aka all developers
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# updated their builds not to contain stale FooDependencies.cmake files without the
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# _qt_package_name property.
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set(__qt_${target}_pkg_names ${__qt_${target}_pkg})
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if(__qt_${target}_pkg MATCHES "(.*)Private$")
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set(__qt_${target}_pkg_names "${CMAKE_MATCH_1};${__qt_${target}_pkg}")
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endif()
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_qt_internal_save_find_package_context_for_debugging(${target})
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find_dependency(${__qt_${target}_pkg} ${__qt_${target}_version}
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NAMES
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${__qt_${target}_pkg_names}
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PATHS
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${${find_dependency_path_list}}
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${_qt_additional_packages_prefix_paths}
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${QT_EXAMPLES_CMAKE_PREFIX_PATH}
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${__qt_use_no_default_path_for_qt_packages}
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)
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endif()
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endforeach()
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endmacro()
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# TODO: Remove once a dependency update completes and most developers have the Dependencies.cmake
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# files updated in their builds.
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# The name is too generic, it doesn't look for any kind of dependencies but only Qt package
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# dependencies.
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macro(_qt_internal_find_dependencies target_dep_list find_dependency_path_list)
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_qt_internal_find_qt_dependencies("none" "${target_dep_list}" "${find_dependency_path_list}")
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endmacro()
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# If a dependency package was not found, provide some hints in the error message on how to debug
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# the issue.
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#
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# pkg_name_var should be the variable name that contains the package that was not found.
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# e.g. __qt_Core_pkg
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#
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# message_out_var should contain the variable name of the original "not found" message, and it
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# will have the hints appended to it as a string. e.g. ${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE
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#
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# infix is used as a unique prefix to retrieve the find_package paths context for the last package
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# that was not found, for debugging purposes.
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#
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# The function should not be called in Dependencies.cmake files directly, because find_dependency
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# returns out of the included file.
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macro(_qt_internal_suggest_dependency_debugging infix pkg_name_var message_out_var)
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if(${pkg_name_var}
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AND NOT ${CMAKE_FIND_PACKAGE_NAME}_FOUND
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AND ${message_out_var})
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if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.23")
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string(APPEND ${message_out_var}
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"\nConfiguring with --debug-find-pkg=${${pkg_name_var}} might reveal \
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details why the package was not found.")
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elseif(CMAKE_VERSION VERSION_GREATER_EQUAL "3.17")
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string(APPEND ${message_out_var}
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"\nConfiguring with -DCMAKE_FIND_DEBUG_MODE=TRUE might reveal \
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details why the package was not found.")
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endif()
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if(NOT QT_DEBUG_FIND_PACKAGE)
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string(APPEND ${message_out_var}
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"\nConfiguring with -DQT_DEBUG_FIND_PACKAGE=ON will print the values of some of \
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the path variables that find_package uses to try and find the package.")
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else()
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string(APPEND ${message_out_var}
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"\n find_package search path values and other context for the last package that was not found:"
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"\n CMAKE_MODULE_PATH: ${_qt_${infix}_CMAKE_MODULE_PATH}"
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"\n CMAKE_PREFIX_PATH: ${_qt_${infix}_CMAKE_PREFIX_PATH}"
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"\n \$ENV{CMAKE_PREFIX_PATH}: $ENV{CMAKE_PREFIX_PATH}"
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"\n CMAKE_FIND_ROOT_PATH: ${_qt_${infix}_CMAKE_FIND_ROOT_PATH}"
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"\n _qt_additional_packages_prefix_paths: ${_qt_${infix}_qt_additional_packages_prefix_paths}"
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"\n _qt_additional_host_packages_prefix_paths: ${_qt_${infix}_qt_additional_host_packages_prefix_paths}"
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"\n _qt_cmake_dir: ${_qt_${infix}_qt_cmake_dir}"
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"\n QT_HOST_PATH: ${QT_HOST_PATH}"
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"\n Qt6HostInfo_DIR: ${Qt6HostInfo_DIR}"
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"\n Qt6_DIR: ${Qt6_DIR}"
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"\n CMAKE_TOOLCHAIN_FILE: ${CMAKE_TOOLCHAIN_FILE}"
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"\n CMAKE_FIND_ROOT_PATH_MODE_PACKAGE: ${CMAKE_FIND_ROOT_PATH_MODE_PACKAGE}"
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"\n CMAKE_SYSROOT: ${CMAKE_SYSROOT}"
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"\n \$ENV{PATH}: $ENV{PATH}"
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)
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endif()
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endif()
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endmacro()
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# Save find_package search paths context just before a find_package call, to be shown with a
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# package not found message.
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macro(_qt_internal_save_find_package_context_for_debugging infix)
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if(QT_DEBUG_FIND_PACKAGE)
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set(_qt_${infix}_CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH}")
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set(_qt_${infix}_CMAKE_PREFIX_PATH "${CMAKE_PREFIX_PATH}")
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set(_qt_${infix}_CMAKE_FIND_ROOT_PATH "${CMAKE_FIND_ROOT_PATH}")
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set(_qt_${infix}_qt_additional_packages_prefix_paths
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"${_qt_additional_packages_prefix_paths}")
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set(_qt_${infix}_qt_additional_host_packages_prefix_paths
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"${_qt_additional_host_packages_prefix_paths}")
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set(_qt_${infix}_qt_cmake_dir "${_qt_cmake_dir}")
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endif()
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endmacro()
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function(_qt_internal_determine_if_host_info_package_needed out_var)
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set(needed FALSE)
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# If a QT_HOST_PATH is provided when configuring qtbase, we assume it's a cross build
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# and thus we require the QT_HOST_PATH to be provided also when using the cross-built Qt.
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# This tells the QtConfigDependencies file to do appropriate requirement checks.
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if(NOT "${QT_HOST_PATH}" STREQUAL "" AND NOT QT_NO_REQUIRE_HOST_PATH_CHECK)
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set(needed TRUE)
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endif()
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set(${out_var} "${needed}" PARENT_SCOPE)
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endfunction()
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macro(_qt_internal_find_host_info_package platform_requires_host_info)
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if(${platform_requires_host_info})
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find_package(Qt6HostInfo
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CONFIG
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REQUIRED
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PATHS "${QT_HOST_PATH}"
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"${QT_HOST_PATH_CMAKE_DIR}"
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NO_CMAKE_FIND_ROOT_PATH
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NO_DEFAULT_PATH)
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endif()
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endmacro()
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macro(_qt_internal_setup_qt_host_path
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host_path_required
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initial_qt_host_path
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initial_qt_host_path_cmake_dir
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)
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# Set up QT_HOST_PATH and do sanity checks.
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# A host path is required when cross-compiling but optional when doing a native build.
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# Requiredness can be overridden via variable.
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if(DEFINED QT_REQUIRE_HOST_PATH_CHECK)
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set(_qt_platform_host_path_required "${QT_REQUIRE_HOST_PATH_CHECK}")
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else()
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set(_qt_platform_host_path_required "${host_path_required}")
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endif()
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if(_qt_platform_host_path_required)
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# QT_HOST_PATH precedence:
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# - cache variable / command line option
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# - environment variable
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# - initial QT_HOST_PATH when qtbase was configured (and the directory exists)
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if(NOT DEFINED QT_HOST_PATH)
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if(DEFINED ENV{QT_HOST_PATH})
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set(QT_HOST_PATH "$ENV{QT_HOST_PATH}" CACHE PATH "")
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elseif(NOT "${initial_qt_host_path}" STREQUAL "" AND EXISTS "${initial_qt_host_path}")
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set(QT_HOST_PATH "${initial_qt_host_path}" CACHE PATH "")
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endif()
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endif()
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if(NOT QT_HOST_PATH STREQUAL "")
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get_filename_component(_qt_platform_host_path_absolute "${QT_HOST_PATH}" ABSOLUTE)
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endif()
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if("${QT_HOST_PATH}" STREQUAL "" OR NOT EXISTS "${_qt_platform_host_path_absolute}")
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message(FATAL_ERROR
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"To use a cross-compiled Qt, please set the QT_HOST_PATH cache variable to the "
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"location of your host Qt installation.")
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endif()
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# QT_HOST_PATH_CMAKE_DIR is needed to work around the rerooting issue when looking for host
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# tools. See REROOT_PATH_ISSUE_MARKER.
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# Prefer initially configured path if none was explicitly set.
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if(NOT DEFINED QT_HOST_PATH_CMAKE_DIR)
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if(NOT "${initial_qt_host_path_cmake_dir}" STREQUAL ""
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AND EXISTS "${initial_qt_host_path_cmake_dir}")
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set(QT_HOST_PATH_CMAKE_DIR "${initial_qt_host_path_cmake_dir}" CACHE PATH "")
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else()
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# First try to auto-compute the location instead of requiring to set
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# QT_HOST_PATH_CMAKE_DIR explicitly.
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set(__qt_candidate_host_path_cmake_dir "${QT_HOST_PATH}/lib/cmake")
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if(__qt_candidate_host_path_cmake_dir
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AND EXISTS "${__qt_candidate_host_path_cmake_dir}")
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set(QT_HOST_PATH_CMAKE_DIR
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"${__qt_candidate_host_path_cmake_dir}" CACHE PATH "")
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endif()
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endif()
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endif()
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if(NOT QT_HOST_PATH_CMAKE_DIR STREQUAL "")
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get_filename_component(_qt_platform_host_path_cmake_dir_absolute
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"${QT_HOST_PATH_CMAKE_DIR}" ABSOLUTE)
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endif()
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if("${QT_HOST_PATH_CMAKE_DIR}" STREQUAL ""
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OR NOT EXISTS "${_qt_platform_host_path_cmake_dir_absolute}")
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message(FATAL_ERROR
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"To use a cross-compiled Qt, please set the QT_HOST_PATH_CMAKE_DIR cache variable "
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"to the location of your host Qt installation lib/cmake directory.")
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endif()
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endif()
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endmacro()
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