1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
# special case skip regeneration
# Need an explicit call at the top level. This is the absolute minimum version
# needed to configure the project with any combination of enabled features.
# The call to qt_build_repo_begin() will upgrade policies further.
#
# The absolute minimum version for building Qt is 3.16 because for metatype.json generation, we
# depend on being able to find the location of json files created by AUTOMOC/moc.
cmake_minimum_required(VERSION 3.16)
# Get the repo version and CMake policy details
include(.cmake.conf)
# Bail out if any part of the build directory's path is symlinked.
function(qt_internal_check_if_path_has_symlinks path)
get_filename_component(dir "${path}" ABSOLUTE)
set(is_symlink FALSE)
if(CMAKE_HOST_WIN32)
# CMake marks Windows mount points as symbolic links, so use simplified REALPATH check
# on Windows platforms instead of IS_SYMLINK.
get_filename_component(dir_realpath "${dir}" REALPATH)
if(NOT dir STREQUAL dir_realpath)
set(is_symlink TRUE)
endif()
else()
while(TRUE)
if(IS_SYMLINK "${dir}")
set(is_symlink TRUE)
break()
endif()
set(prev_dir "${dir}")
get_filename_component(dir "${dir}" DIRECTORY)
if("${dir}" STREQUAL "${prev_dir}")
return()
endif()
endwhile()
endif()
if(is_symlink)
message(FATAL_ERROR "The path \"${path}\" contains symlinks. \
This is not supported. Possible solutions:
- map directories using a transparent mechanism such as mount --bind
- pass the real path of the build directory to CMake, e.g. using \
cd $(realpath <path>) before invoking cmake <source_dir>.")
endif()
endfunction()
qt_internal_check_if_path_has_symlinks("${CMAKE_BINARY_DIR}")
# Run auto detection routines, but not when doing standalone tests. In that case, the detection
# results are taken from either QtBuildInternals or the qt.toolchain.cmake file. Also, inhibit
# auto-detection in a top-level build, because the top-level project file already includes it.
if(NOT QT_BUILD_STANDALONE_TESTS AND NOT QT_SUPERBUILD)
include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtAutoDetect.cmake)
endif()
# This call will load any provided cmake toolchain file.
project(QtBase
VERSION "${QT_REPO_MODULE_VERSION}"
DESCRIPTION "Qt Base Libraries"
HOMEPAGE_URL "https://qt.io/"
LANGUAGES CXX C ASM
)
# Should this Qt be static or dynamically linked?
option(BUILD_SHARED_LIBS "Build Qt statically or dynamically" ON)
set(QT_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
# This variable is also set in Qt6CoreConfigExtras.cmake, but it's not loaded when building
# qtbase. Set it here so qt_add_plugin can compute the proper plugin flavor.
set(QT6_IS_SHARED_LIBS_BUILD ${BUILD_SHARED_LIBS})
# BUILD_SHARED_LIBS influences the minimum required CMake version. The value is set either by:
# a cache variable provided on the configure command line
# or set by QtAutoDetect.cmake depending on the platform
# or specified via a toolchain file that is loaded by the project() call
# or set by the option() call above
include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtCMakeVersionHelpers.cmake")
include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/QtPublicCMakeVersionHelpers.cmake")
qt_internal_check_and_warn_about_unsuitable_cmake_version()
if(NOT QT_BUILD_STANDALONE_TESTS)
## Add some paths to check for cmake modules:
list(PREPEND CMAKE_MODULE_PATH
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/3rdparty/extra-cmake-modules/find-modules"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/3rdparty/kwin"
)
if(MACOS)
# Add module directory to pick up custom Info.plist template
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/macos")
elseif(IOS)
# Add module directory to pick up custom Info.plist template
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/ios")
endif()
## Find the build internals package.
set(QT_BUILD_INTERNALS_SKIP_CMAKE_MODULE_PATH_ADDITION TRUE)
list(PREPEND CMAKE_PREFIX_PATH
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
)
find_package(QtBuildInternals CMAKE_FIND_ROOT_PATH_BOTH)
unset(QT_BUILD_INTERNALS_SKIP_CMAKE_MODULE_PATH_ADDITION)
else()
# When building standalone tests, an istalled BuildInternals package already exists.
find_package(Qt6 REQUIRED COMPONENTS BuildInternals CMAKE_FIND_ROOT_PATH_BOTH)
endif()
qt_build_repo_begin()
if(NOT QT_BUILD_STANDALONE_TESTS)
## Should this Qt be built with Werror?
option(WARNINGS_ARE_ERRORS "Build Qt with warnings as errors" ${FEATURE_developer_build})
## Should this Qt create versioned hard link for some tools?
option(QT_CREATE_VERSIONED_HARD_LINK "Enable the use of versioned hard link" ON)
## QtBase specific configure tests:
include(QtBaseConfigureTests)
## Build System tests:
include(QtBaseCMakeTesting)
## Targets for global features, etc.:
include(QtBaseGlobalTargets)
## Set language standards after QtBaseGlobalTargets, because that's when the relevant
## feature variables are available.
qt_set_language_standards()
#include CoreMacros() for qt6_generate_meta_types()
set(QT_DEFAULT_MAJOR_VERSION 6)
include(src/corelib/Qt6CoreMacros.cmake)
# Needed when building qtbase for android.
if(ANDROID)
include(src/corelib/Qt6AndroidMacros.cmake)
_qt_internal_create_global_android_targets()
endif()
if(WASM)
# Needed when building for WebAssembly.
include(cmake/QtWasmHelpers.cmake)
include(src/corelib/Qt6WasmMacros.cmake)
qt_internal_setup_wasm_target_properties(Platform)
endif()
# Set up optimization flags like in qmake.
# This function must be called after the global QT_FEATURE_xxx variables have been set up,
# aka after QtBaseGlobalTargets is processed.
# It also has to be called /before/ adding add_subdirectory(src), so that per-directory
# modifications can still be applied if necessary (like in done in Core and Gui).
qt_internal_set_up_config_optimizations_like_in_qmake()
## Setup documentation
add_subdirectory(doc)
## Visit all the directories:
add_subdirectory(src)
endif()
if(QT_BUILD_TESTS)
add_subdirectory(tests)
if(NOT QT_BUILD_TESTS_BY_DEFAULT)
set_property(DIRECTORY tests PROPERTY EXCLUDE_FROM_ALL TRUE)
endif()
endif()
if(NOT QT_BUILD_STANDALONE_TESTS)
if(QT_WILL_BUILD_TOOLS AND QT_FEATURE_settings)
add_subdirectory(qmake)
endif()
# As long as we use the mkspecs (for qplatformdefs.h), we need to always
# install it, especially when cross-compiling.
set(mkspecs_install_dir "${INSTALL_MKSPECSDIR}")
qt_path_join(mkspecs_install_dir ${QT_INSTALL_DIR} ${mkspecs_install_dir})
file(GLOB mkspecs_subdirs
LIST_DIRECTORIES TRUE
"${PROJECT_SOURCE_DIR}/mkspecs/*")
foreach(entry IN LISTS mkspecs_subdirs)
if (IS_DIRECTORY ${entry})
qt_copy_or_install(DIRECTORY "${entry}"
DESTINATION ${mkspecs_install_dir}
USE_SOURCE_PERMISSIONS)
else()
qt_copy_or_install(FILES "${entry}"
DESTINATION ${mkspecs_install_dir})
endif()
endforeach()
endif()
qt_build_repo_end()
if(NOT QT_BUILD_STANDALONE_TESTS AND QT_BUILD_EXAMPLES)
add_subdirectory(examples)
endif()
|
