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qtbase/cmake/QtPrecompiledHeadersHelpers.cmake

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CMake
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Add license headers to cmake files 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>
2022-07-05 13:26:52 +02:00
# Copyright (C) 2022 The Qt Company Ltd.
Change the license of all CMakeLists.txt and *.cmake files to BSD Task-number: QTBUG-105718 Change-Id: I5d3ef70a31235868b9be6cb479b7621bf2a8ba39 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-08-19 15:21:34 +02:00
# SPDX-License-Identifier: BSD-3-Clause
Add license headers to cmake files 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>
2022-07-05 13:26:52 +02:00
CMake: Split QtBuild.cmake into smaller files QtBuild.cmake is huge. Split it. Move module, plugin, tools, executables and test related functions out of QtBuild.cmake into separate files. Do the same for many other things too. An additional requirement is that all the new Helpers files only define functions and macros. No global variable definitions are allowed, nor execution of commands with side effects. Some notes: qt_install_qml_files is removed because it's dead code. Some functions still need to be figured out, because they are interspersed and depend on various global state assignments. Task-number: QTBUG-86035 Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-13 17:37:47 +02:00
function(qt_update_precompiled_header target precompiled_header)
if (precompiled_header AND BUILD_WITH_PCH)
Simplify genex expressions Simplifications: - `COMPILE_LANGUAGE` accepts comma-separated list since 3.15 Pick-to: 6.8 6.9 Change-Id: I4af316a463b5771bf5b37a6b4d77e41adba60977 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2025-01-24 17:52:24 +01:00
set_property(TARGET "${target}" APPEND PROPERTY "PRECOMPILE_HEADERS" "$<$<COMPILE_LANGUAGE:CXX,OBJCXX>:${precompiled_header}>")
CMake: Split QtBuild.cmake into smaller files QtBuild.cmake is huge. Split it. Move module, plugin, tools, executables and test related functions out of QtBuild.cmake into separate files. Do the same for many other things too. An additional requirement is that all the new Helpers files only define functions and macros. No global variable definitions are allowed, nor execution of commands with side effects. Some notes: qt_install_qml_files is removed because it's dead code. Some functions still need to be figured out, because they are interspersed and depend on various global state assignments. Task-number: QTBUG-86035 Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-13 17:37:47 +02:00
endif()
endfunction()
function(qt_update_precompiled_header_with_library target library)
CMake: Fix generation of precompiled headers in per-repo Qt builds When a Qt module Foo links against a Qt module Bar then we add the ${QT_BUILD_DIR}/include/QtBar/QtBar header to the list of precompiled header files. However, this only works if Foo and Bar are in the same build system, e.g. in the same repository or in a top-level build. For example, the QtCore header was never precompiled when in a per-repo build of QtSvg. Now, we determine whether Foo and Bar are in the same build system. If they are, we proceed as before. Otherwise, we calculate the QtBar header's location from the following data: - the location of Qt6BarConfig.cmake - the relative path to Bar's include directory The Q*Application tests' project files had to be adjusted to use NO_PCH_SOURCES now, because they use the source file apphelper_plugin.cpp that specifically checks that pre-compiled headers are not used for its compilation. Fixes: QTBUG-134424 Change-Id: I04ede51e4d853e8b813f660f29be8cfeb684c0b2 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io> Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2025-03-10 11:58:18 +01:00
if(NOT TARGET "${library}")
return()
endif()
get_target_property(target_type "${library}" TYPE)
if(target_type STREQUAL "INTERFACE_LIBRARY")
return()
endif()
get_target_property(header_file_path "${library}" MODULE_HEADER)
if(NOT header_file_path)
# The Qt module is imported from the Qt installation prefix.
# Calculate the module header location.
get_target_property(include_name "${library}" _qt_module_include_name)
if(NOT include_name)
message(DEBUG "Property _qt_module_include_name is not set on ${library}.")
return()
endif()
get_target_property(relative_include_dir "${library}" _qt_module_relative_include_dir)
if(NOT relative_include_dir)
message(DEBUG "Property _qt_module_relative_include_dir is not set on ${library}.")
return()
endif()
get_target_property(package_name ${library} _qt_package_name)
if(NOT package_name)
message(DEBUG "No package name found for ${library}.")
return()
endif()
set(package_location "${${package_name}_DIR}")
get_filename_component(absolute_include_dir
"${package_location}/${relative_include_dir}"
ABSOLUTE
)
set(header_file_path "${absolute_include_dir}/${include_name}")
if(NOT EXISTS "${header_file_path}")
message(DEBUG "Module header '${header_file_path}' does not exist.")
return()
CMake: Split QtBuild.cmake into smaller files QtBuild.cmake is huge. Split it. Move module, plugin, tools, executables and test related functions out of QtBuild.cmake into separate files. Do the same for many other things too. An additional requirement is that all the new Helpers files only define functions and macros. No global variable definitions are allowed, nor execution of commands with side effects. Some notes: qt_install_qml_files is removed because it's dead code. Some functions still need to be figured out, because they are interspersed and depend on various global state assignments. Task-number: QTBUG-86035 Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-13 17:37:47 +02:00
endif()
endif()
CMake: Fix generation of precompiled headers in per-repo Qt builds When a Qt module Foo links against a Qt module Bar then we add the ${QT_BUILD_DIR}/include/QtBar/QtBar header to the list of precompiled header files. However, this only works if Foo and Bar are in the same build system, e.g. in the same repository or in a top-level build. For example, the QtCore header was never precompiled when in a per-repo build of QtSvg. Now, we determine whether Foo and Bar are in the same build system. If they are, we proceed as before. Otherwise, we calculate the QtBar header's location from the following data: - the location of Qt6BarConfig.cmake - the relative path to Bar's include directory The Q*Application tests' project files had to be adjusted to use NO_PCH_SOURCES now, because they use the source file apphelper_plugin.cpp that specifically checks that pre-compiled headers are not used for its compilation. Fixes: QTBUG-134424 Change-Id: I04ede51e4d853e8b813f660f29be8cfeb684c0b2 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io> Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2025-03-10 11:58:18 +01:00
qt_update_precompiled_header("${target}" "${header_file_path}")
CMake: Split QtBuild.cmake into smaller files QtBuild.cmake is huge. Split it. Move module, plugin, tools, executables and test related functions out of QtBuild.cmake into separate files. Do the same for many other things too. An additional requirement is that all the new Helpers files only define functions and macros. No global variable definitions are allowed, nor execution of commands with side effects. Some notes: qt_install_qml_files is removed because it's dead code. Some functions still need to be figured out, because they are interspersed and depend on various global state assignments. Task-number: QTBUG-86035 Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-13 17:37:47 +02:00
endfunction()
function(qt_update_ignore_pch_source target sources)
if (sources)
Add some utilities for UNITY_BUILD - The following commands accepts NO_UNITY_BUILD, and NO_UNITY_BUILD_SOURCES arguments to opt out of the unity build, and to exclude some source files from unity build, respectively. - qt_internal_add_executable - qt_internal_add_module - qt_internal_add_plugin - qt_internal_add_tool - qt_internal_extend_target - qt_internal_add_common_qt_library_helper - qt_internal_add_cmake_library - qt_internal_add_simd_part - Unity build is disabled by default in these: - qt_internal_add_test - qt_internal_add_test_helper - qt_internal_add_benchmark - qt_internal_add_3rdparty_library - qt_update_ignore_pch_source also excludes the files from unity_build Pick-to: 6.5 Task-number: QTBUG-109394 Change-Id: I5d0e7df633738310a015142a6c73fbb78b6c3467 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2023-01-31 14:05:16 +01:00
set_source_files_properties(${sources} PROPERTIES
SKIP_PRECOMPILE_HEADERS ON
SKIP_UNITY_BUILD_INCLUSION ON)
CMake: Split QtBuild.cmake into smaller files QtBuild.cmake is huge. Split it. Move module, plugin, tools, executables and test related functions out of QtBuild.cmake into separate files. Do the same for many other things too. An additional requirement is that all the new Helpers files only define functions and macros. No global variable definitions are allowed, nor execution of commands with side effects. Some notes: qt_install_qml_files is removed because it's dead code. Some functions still need to be figured out, because they are interspersed and depend on various global state assignments. Task-number: QTBUG-86035 Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-13 17:37:47 +02:00
endif()
endfunction()
function(qt_ignore_pch_obj_c_sources target sources)
# No obj-cxx PCH support for versions lower than 3.16.
if(CMAKE_VERSION VERSION_LESS 3.16.0)
list(FILTER sources INCLUDE REGEX "\\.mm$")
qt_update_ignore_pch_source("${target}" "${sources}")
endif()
endfunction()
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