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if (CMAKE_VERSION VERSION_LESS 3.1.0)
message(FATAL_ERROR "Qt requires at least CMake version 3.1.0")
endif()
######################################
#
# Macros for building Qt modules
#
######################################
if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsExtra.cmake")
include(${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsExtra.cmake)
endif()
macro(qt_set_up_build_internals_paths)
# Set up the paths for the cmake modules located in the build dir. Prepend, so the paths are
# least important compared to the source dir ones, but more important than command line
# provided ones.
set(QT_CMAKE_MODULE_PATH "${QT_BUILD_INTERNALS_PATH}/../${QT_CMAKE_EXPORT_NAMESPACE}")
list(PREPEND CMAKE_MODULE_PATH "${QT_CMAKE_MODULE_PATH}")
# When doing a non-prefix build, prepend the qtbase source cmake directory to CMAKE_MODULE_PATH,
# so that if a change is done in cmake/QtBuild.cmake, it gets automatically picked up when
# building qtdeclarative, rather than having to build qtbase first (which will copy
# QtBuild.cmake to the build dir). This is similar to qmake non-prefix builds, where the
# source qtbase/mkspecs directory is used.
if(NOT QT_WILL_INSTALL)
list(PREPEND CMAKE_MODULE_PATH "${QT_SOURCE_TREE}/cmake")
endif()
# If the repo has its own cmake modules, include those in the module path.
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
endif()
# Find the cmake files when doing a standalone tests build.
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
endif()
endmacro()
macro(qt_build_repo_begin)
if(${ARGC} EQUAL 1 AND "${ARGV0}" STREQUAL "SKIP_CMAKE_MODULE_PATH_ADDITION")
# No-op.
else()
qt_set_up_build_internals_paths()
endif()
# Qt specific setup common for all modules:
include(QtSetup)
include(FeatureSummary)
# Optionally include a repo specific Setup module.
include(${PROJECT_NAME}Setup OPTIONAL)
include(QtRepoSetup OPTIONAL)
# Find Apple frameworks if needed.
qt_find_apple_system_frameworks()
endmacro()
macro(qt_build_repo_end)
# Delayed actions on some of the Qt targets:
include(QtPostProcess)
# Install the repo-specific cmake find modules.
qt_path_join(__qt_repo_install_dir ${QT_CONFIG_INSTALL_DIR} ${INSTALL_CMAKE_NAMESPACE})
if(NOT PROJECT_NAME STREQUAL "QtBase")
if (EXISTS cmake)
qt_copy_or_install(DIRECTORY cmake/
DESTINATION "${__qt_repo_install_dir}"
FILES_MATCHING PATTERN "Find*.cmake"
)
endif()
endif()
# Print a feature summary:
feature_summary(WHAT PACKAGES_FOUND
REQUIRED_PACKAGES_NOT_FOUND
RECOMMENDED_PACKAGES_NOT_FOUND
OPTIONAL_PACKAGES_NOT_FOUND
RUNTIME_PACKAGES_NOT_FOUND
FATAL_ON_MISSING_REQUIRED_PACKAGES)
qt_print_build_instructions()
endmacro()
function(qt_print_build_instructions)
if(NOT PROJECT_NAME STREQUAL "QtBase")
return()
endif()
set(build_command "cmake --build . --parallel")
set(install_command "cmake --install .")
message("Qt is now configured for building. Just run '${build_command}'.")
if(QT_WILL_INSTALL)
message("Once everything is built, you must run '${install_command}'.")
message("Qt will be installed into '${CMAKE_INSTALL_PREFIX}'")
else()
message("Once everything is built, Qt is installed.")
message("You should NOT run '${install_command}'")
message("Note that this build cannot be deployed to other machines or devices.")
endif()
message("To configure and build other modules, you can use the following convenience script:
${CMAKE_INSTALL_PREFIX}/${INSTALL_BINDIR}/qt-cmake")
message("\nIf reconfiguration fails for some reason, try to remove 'CMakeCache.txt' \
from the build directory \n")
endfunction()
macro(qt_build_repo)
qt_build_repo_begin(${ARGN})
# If testing is enabled, try to find the qtbase Test package.
# Do this before adding src, because there might be test related conditions
# in source.
if (BUILD_TESTING)
find_package(Qt6 ${PROJECT_VERSION} CONFIG REQUIRED COMPONENTS Test)
endif()
## Decide whether tools will be built.
qt_check_if_tools_will_be_built()
if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/src/CMakeLists.txt")
add_subdirectory(src)
endif()
if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tools/CMakeLists.txt")
add_subdirectory(tools)
endif()
if (BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests/CMakeLists.txt")
add_subdirectory(tests)
endif()
qt_build_repo_end()
if (BUILD_EXAMPLES AND BUILD_SHARED_LIBS AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/examples/CMakeLists.txt")
add_subdirectory(examples)
endif()
endmacro()
macro(qt_set_up_standalone_tests_build)
qt_set_up_build_internals_paths()
include(QtSetup)
# Optionally include a repo specific Setup module.
include(QtRepoSetup OPTIONAL)
qt_find_apple_system_frameworks()
qt_check_if_tools_will_be_built()
endmacro()
macro(qt_build_tests)
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/auto/CMakeLists.txt")
add_subdirectory(auto)
endif()
if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/benchmarks/CMakeLists.txt")
add_subdirectory(benchmarks)
endif()
endmacro()
macro(qt_examples_build_begin)
# Examples that are built as part of the Qt build need to use the CMake config files from the
# build dir, because they are not installed yet in a prefix build.
# Appending to CMAKE_PREFIX_PATH helps find the initial Qt6Config.cmake.
# Appending to QT_EXAMPLES_CMAKE_PREFIX_PATH helps find components of Qt6, because those
# find_package calls use NO_DEFAULT_PATH, and thus CMAKE_PREFIX_PATH is ignored.
list(APPEND CMAKE_PREFIX_PATH "${CMAKE_BINARY_DIR}")
list(APPEND QT_EXAMPLES_CMAKE_PREFIX_PATH "${CMAKE_BINARY_DIR}")
# Also make sure the CMake config files do not recreate the already-existing targets
set(QT_NO_CREATE_TARGETS TRUE)
set(BACKUP_CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ${CMAKE_FIND_ROOT_PATH_MODE_PACKAGE})
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE "BOTH")
endmacro()
macro(qt_examples_build_end)
# We use AUTOMOC/UIC/RCC in the examples. Make sure to not fail on a fresh Qt build, that e.g. the moc binary does not exist yet.
# This function gets all targets below this directory
function(get_all_targets _result _dir)
get_property(_subdirs DIRECTORY "${_dir}" PROPERTY SUBDIRECTORIES)
foreach(_subdir IN LISTS _subdirs)
get_all_targets(${_result} "${_subdir}")
endforeach()
get_property(_sub_targets DIRECTORY "${_dir}" PROPERTY BUILDSYSTEM_TARGETS)
set(${_result} ${${_result}} ${_sub_targets} PARENT_SCOPE)
endfunction()
get_all_targets(targets "${CMAKE_CURRENT_SOURCE_DIR}")
foreach(target ${targets})
qt_autogen_tools(${target} ENABLE_AUTOGEN_TOOLS "moc" "rcc")
if(TARGET Qt::Widgets)
qt_autogen_tools(${target} ENABLE_AUTOGEN_TOOLS "uic")
endif()
endforeach()
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ${BACKUP_CMAKE_FIND_ROOT_PATH_MODE_PACKAGE})
endmacro()
if (ANDROID)
include(${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsAndroid.cmake)
endif()
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