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qt5base-lts/cmake/QtAutoDetect.cmake
Tasuku Suzuki 6544a23603 CMake: Fix Qt toolchain file recursive inclusion 
'.' in the regexp must be escaped.
e.g. "/qt/toolchain.cmake" matches "/qt.toolchain.cmake$"

Pick-to: 6.5 6.6
Change-Id: Ib6b66349e1619908a33b4a11d79f7ba19d0e8fdc
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2023-10-17 06:31:54 +00:00

518 lines
23 KiB
CMake
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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
#
# Collection of auto detection routines to improve the user experience when
# building Qt from source.
#
# Make sure to not run detection when building standalone tests, because the detection was already
# done when initially configuring qtbase.
# This needs to be here because QtAutoDetect loads before any other modules
option(QT_USE_VCPKG "Enable the use of vcpkg" OFF)
function(qt_internal_ensure_static_qt_config)
if(NOT DEFINED BUILD_SHARED_LIBS)
set(BUILD_SHARED_LIBS OFF CACHE BOOL "Build Qt statically or dynamically" FORCE)
endif()
if(BUILD_SHARED_LIBS)
message(FATAL_ERROR
"Building Qt for ${CMAKE_SYSTEM_NAME} as shared libraries is not supported.")
endif()
endfunction()
include("${CMAKE_CURRENT_LIST_DIR}/QtPublicWasmToolchainHelpers.cmake")
function(qt_auto_detect_wasm)
if("${QT_QMAKE_TARGET_MKSPEC}" STREQUAL "wasm-emscripten" OR "${QT_QMAKE_TARGET_MKSPEC}" STREQUAL "wasm-emscripten-64")
if (NOT DEFINED ENV{EMSDK})
message(FATAL_ERROR
"Can't find an Emscripten SDK! Make sure the EMSDK environment variable is "
"available by activating and sourcing the emscripten sdk. Also ensure emcc is in "
"your path.")
endif()
if(NOT DEFINED QT_AUTODETECT_WASM_IS_DONE)
message(STATUS "Extracting Emscripten SDK info from EMSDK env var: $ENV{EMSDK}")
__qt_internal_get_emroot_path_suffix_from_emsdk_env(EMROOT_PATH)
__qt_internal_query_emsdk_version("${EMROOT_PATH}" TRUE CMAKE_EMSDK_REGEX_VERSION)
set(EMCC_VERSION "${CMAKE_EMSDK_REGEX_VERSION}" CACHE STRING INTERNAL FORCE)
if(NOT DEFINED BUILD_SHARED_LIBS)
qt_internal_ensure_static_qt_config()
endif()
# Find toolchain file
if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
__qt_internal_get_emscripten_cmake_toolchain_file_path_from_emsdk_env(
"${EMROOT_PATH}" wasm_toolchain_file)
set(CMAKE_TOOLCHAIN_FILE "${wasm_toolchain_file}" CACHE STRING "" FORCE)
endif()
if(EXISTS "${CMAKE_TOOLCHAIN_FILE}")
message(STATUS
"Emscripten ${EMCC_VERSION} toolchain file detected at ${CMAKE_TOOLCHAIN_FILE}")
else()
__qt_internal_show_error_no_emscripten_toolchain_file_found_when_building_qt()
endif()
__qt_internal_get_emcc_recommended_version(recommended_version)
set(QT_EMCC_RECOMMENDED_VERSION "${recommended_version}" CACHE STRING INTERNAL FORCE)
set(QT_AUTODETECT_WASM_IS_DONE TRUE CACHE BOOL "")
else()
message(STATUS
"Reusing cached Emscripten ${EMCC_VERSION} toolchain file detected at "
"${CMAKE_TOOLCHAIN_FILE}")
endif()
endif()
endfunction()
function(qt_auto_detect_cmake_generator)
if(NOT CMAKE_GENERATOR MATCHES "Ninja" AND NOT QT_SILENCE_CMAKE_GENERATOR_WARNING)
message(WARNING
"The officially supported CMake generator for building Qt is Ninja. "
"You are using: '${CMAKE_GENERATOR}' instead. "
"Thus, you might encounter issues. Use at your own risk.")
endif()
endfunction()
function(qt_auto_detect_android)
# We assume an Android build if any of the ANDROID_* cache variables are set.
if(DEFINED ANDROID_SDK_ROOT
OR DEFINED ANDROID_NDK_ROOT
OR DEFINED ANDROID_ABI
OR DEFINED ANDROID_NATIVE_ABI_LEVEL
OR DEFINED ANDROID_STL)
set(android_detected TRUE)
else()
set(android_detected FALSE)
endif()
# Auto-detect NDK root
if(NOT DEFINED ANDROID_NDK_ROOT AND DEFINED ANDROID_SDK_ROOT)
file(GLOB ndk_versions LIST_DIRECTORIES true RELATIVE "${ANDROID_SDK_ROOT}/ndk"
"${ANDROID_SDK_ROOT}/ndk/*")
unset(ndk_root)
if(NOT ndk_versions STREQUAL "")
# Use the NDK with the highest version number.
if(CMAKE_VERSION VERSION_LESS 3.18)
list(SORT ndk_versions)
list(REVERSE ndk_versions)
else()
list(SORT ndk_versions COMPARE NATURAL ORDER DESCENDING)
endif()
list(GET ndk_versions 0 ndk_root)
string(PREPEND ndk_root "${ANDROID_SDK_ROOT}/ndk/")
else()
# Fallback: use the deprecated "ndk-bundle" directory within the SDK root.
set(ndk_root "${ANDROID_SDK_ROOT}/ndk-bundle")
if(NOT IS_DIRECTORY "${ndk_root}")
unset(ndk_root)
endif()
endif()
if(DEFINED ndk_root)
message(STATUS "Android NDK detected: ${ndk_root}")
set(ANDROID_NDK_ROOT "${ndk_root}" CACHE STRING "")
endif()
endif()
# Auto-detect toolchain file
if(NOT DEFINED CMAKE_TOOLCHAIN_FILE AND DEFINED ANDROID_NDK_ROOT)
set(toolchain_file "${ANDROID_NDK_ROOT}/build/cmake/android.toolchain.cmake")
if(EXISTS "${toolchain_file}")
message(STATUS "Android toolchain file within NDK detected: ${toolchain_file}")
set(CMAKE_TOOLCHAIN_FILE "${toolchain_file}" CACHE STRING "")
else()
message(FATAL_ERROR "Cannot find the toolchain file '${toolchain_file}'. "
"Please specify the toolchain file with -DCMAKE_TOOLCHAIN_FILE=<file>.")
endif()
endif()
if(NOT DEFINED CMAKE_TOOLCHAIN_FILE AND android_detected)
message(FATAL_ERROR "An Android build was requested, but no Android toolchain file was "
"specified nor detected.")
endif()
if(DEFINED CMAKE_TOOLCHAIN_FILE AND NOT DEFINED QT_AUTODETECT_ANDROID)
# Peek into the toolchain file and check if it looks like an Android one.
if(NOT android_detected)
file(READ ${CMAKE_TOOLCHAIN_FILE} toolchain_file_content OFFSET 0 LIMIT 80)
string(FIND "${toolchain_file_content}" "The Android Open Source Project"
find_result REVERSE)
if(NOT ${find_result} EQUAL -1)
set(android_detected TRUE)
endif()
endif()
if(android_detected)
message(STATUS "Android build detected, checking configuration defaults...")
# ANDROID_NATIVE_API_LEVEL is an just an alias to ANDROID_PLATFORM, check for both
if(NOT DEFINED ANDROID_PLATFORM AND NOT DEFINED ANDROID_NATIVE_API_LEVEL)
message(STATUS "Neither ANDROID_PLATFORM nor ANDROID_NATIVE_API_LEVEL were specified, using API level 23 as default")
set(ANDROID_PLATFORM "android-23" CACHE STRING "")
set(ANDROID_NATIVE_API_LEVEL 23 CACHE STRING "")
endif()
if(NOT DEFINED ANDROID_STL)
set(ANDROID_STL "c++_shared" CACHE STRING "")
endif()
endif()
set(QT_AUTODETECT_ANDROID ${android_detected} CACHE STRING "")
elseif (QT_AUTODETECT_ANDROID)
message(STATUS "Android build detected")
endif()
endfunction()
function(qt_auto_detect_vcpkg)
if(QT_USE_VCPKG AND DEFINED ENV{VCPKG_ROOT})
set(vcpkg_toolchain_file "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")
get_filename_component(vcpkg_toolchain_file "${vcpkg_toolchain_file}" ABSOLUTE)
if(DEFINED CMAKE_TOOLCHAIN_FILE)
get_filename_component(supplied_toolchain_file "${CMAKE_TOOLCHAIN_FILE}" ABSOLUTE)
if(NOT supplied_toolchain_file STREQUAL vcpkg_toolchain_file)
set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE "${supplied_toolchain_file}" CACHE STRING "")
endif()
unset(supplied_toolchain_file)
endif()
set(CMAKE_TOOLCHAIN_FILE "${vcpkg_toolchain_file}" CACHE STRING "" FORCE)
message(STATUS "Using vcpkg from $ENV{VCPKG_ROOT}")
if(DEFINED ENV{QT_VCPKG_TARGET_TRIPLET} AND NOT DEFINED VCPKG_TARGET_TRIPLET)
set(VCPKG_TARGET_TRIPLET "$ENV{QT_VCPKG_TARGET_TRIPLET}" CACHE STRING "")
message(STATUS "Using vcpkg triplet ${VCPKG_TARGET_TRIPLET}")
endif()
unset(vcpkg_toolchain_file)
message(STATUS "CMAKE_TOOLCHAIN_FILE is: ${CMAKE_TOOLCHAIN_FILE}")
if(DEFINED VCPKG_CHAINLOAD_TOOLCHAIN_FILE)
message(STATUS "VCPKG_CHAINLOAD_TOOLCHAIN_FILE is: ${VCPKG_CHAINLOAD_TOOLCHAIN_FILE}")
endif()
endif()
endfunction()
function(qt_auto_detect_ios)
if(CMAKE_SYSTEM_NAME STREQUAL iOS)
message(STATUS "Using internal CMake ${CMAKE_SYSTEM_NAME} toolchain file.")
# The QT_UIKIT_SDK check simulates the input.sdk condition for simulator_and_device in
# configure.json.
# If the variable is explicitly provided, assume simulator_and_device to be off.
if(QT_UIKIT_SDK)
set(simulator_and_device OFF)
else()
# Default to simulator_and_device when an explicit sdk is not requested.
# Requires CMake 3.17.0+.
set(simulator_and_device ON)
endif()
message(STATUS "simulator_and_device set to: \"${simulator_and_device}\".")
# Choose relevant architectures.
# Using a non Xcode generator requires explicit setting of the
# architectures, otherwise compilation fails with unknown defines.
if(simulator_and_device)
set(osx_architectures "arm64;x86_64")
elseif(QT_UIKIT_SDK STREQUAL "iphoneos")
set(osx_architectures "arm64")
elseif(QT_UIKIT_SDK STREQUAL "iphonesimulator")
set(osx_architectures "x86_64")
else()
if(NOT DEFINED QT_UIKIT_SDK)
message(FATAL_ERROR "Please provide a value for -DQT_UIKIT_SDK."
" Possible values: iphoneos, iphonesimulator.")
else()
message(FATAL_ERROR
"Unknown SDK argument given to QT_UIKIT_SDK: ${QT_UIKIT_SDK}.")
endif()
endif()
# For non simulator_and_device builds, we need to explicitly set the SYSROOT aka the sdk
# value.
if(QT_UIKIT_SDK)
set(CMAKE_OSX_SYSROOT "${QT_UIKIT_SDK}" CACHE STRING "")
endif()
set(CMAKE_OSX_ARCHITECTURES "${osx_architectures}" CACHE STRING "")
if(NOT DEFINED BUILD_SHARED_LIBS)
qt_internal_ensure_static_qt_config()
endif()
# Disable qt rpaths for iOS, just like mkspecs/common/uikit.conf does, due to those
# bundles not being able to use paths outside the app bundle. Not sure this is strictly
# needed though.
set(QT_DISABLE_RPATH "OFF" CACHE BOOL "Disable automatic Qt rpath handling." FORCE)
endif()
endfunction()
function(qt_auto_detect_cmake_config)
# If CMAKE_CONFIGURATION_TYPES are not set for the multi-config generator use Release and
# Debug configurations by default, instead of those are proposed by the CMake internal logic.
get_property(is_multi GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
if(is_multi)
if(NOT CMAKE_CONFIGURATION_TYPES)
set(CMAKE_CONFIGURATION_TYPES Release Debug)
set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" PARENT_SCOPE)
endif()
# Allow users to specify this option.
if(NOT QT_MULTI_CONFIG_FIRST_CONFIG)
list(GET CMAKE_CONFIGURATION_TYPES 0 first_config_type)
set(QT_MULTI_CONFIG_FIRST_CONFIG "${first_config_type}")
set(QT_MULTI_CONFIG_FIRST_CONFIG "${first_config_type}" PARENT_SCOPE)
endif()
set(CMAKE_TRY_COMPILE_CONFIGURATION "${QT_MULTI_CONFIG_FIRST_CONFIG}" PARENT_SCOPE)
if(CMAKE_GENERATOR STREQUAL "Ninja Multi-Config")
# Create build-<config>.ninja files for all specified configurations.
set(CMAKE_CROSS_CONFIGS "all" CACHE STRING "")
# The configuration that will be considered the main one (for example when
# configuring standalone tests with a single-config generator like Ninja).
set(CMAKE_DEFAULT_BUILD_TYPE "${QT_MULTI_CONFIG_FIRST_CONFIG}" CACHE STRING "")
# By default when ninja is called without parameters, it will build all configurations.
set(CMAKE_DEFAULT_CONFIGS "all" CACHE STRING "")
endif()
endif()
endfunction()
function(qt_auto_detect_cyclic_toolchain)
if(CMAKE_TOOLCHAIN_FILE AND CMAKE_TOOLCHAIN_FILE MATCHES "/qt\\.toolchain\\.cmake$")
message(FATAL_ERROR
"Woah there! You can't use the Qt generated qt.toolchain.cmake file to configure "
"qtbase, because that will create a toolchain file that includes itself!\n"
"Did you accidentally use qt-cmake to configure qtbase? Make sure to remove the "
"CMakeCache.txt file, and configure qtbase with 'cmake' instead of 'qt-cmake'.")
endif()
endfunction()
function(qt_internal_get_darwin_sdk_version out_var)
if(APPLE)
if(CMAKE_SYSTEM_NAME STREQUAL iOS)
set(sdk_name "iphoneos")
else()
# Default to macOS
set(sdk_name "macosx")
endif()
set(xcrun_version_arg "--show-sdk-version")
execute_process(COMMAND /usr/bin/xcrun --sdk ${sdk_name} ${xcrun_version_arg}
OUTPUT_VARIABLE sdk_version
ERROR_VARIABLE xcrun_error)
if(NOT sdk_version)
message(FATAL_ERROR
"Can't determine darwin ${sdk_name} SDK version. Error: ${xcrun_error}")
endif()
string(STRIP "${sdk_version}" sdk_version)
set(${out_var} "${sdk_version}" PARENT_SCOPE)
endif()
endfunction()
function(qt_internal_get_xcode_version out_var)
if(APPLE)
execute_process(COMMAND /usr/bin/xcrun xcodebuild -version
OUTPUT_VARIABLE xcode_version
ERROR_VARIABLE xcrun_error)
string(REPLACE "\n" " " xcode_version "${xcode_version}")
string(STRIP "${xcode_version}" xcode_version)
set(${out_var} "${xcode_version}" PARENT_SCOPE)
endif()
endfunction()
function(qt_auto_detect_darwin)
if(APPLE)
# If no CMAKE_OSX_DEPLOYMENT_TARGET is provided, default to a value that Qt defines.
# This replicates the behavior in mkspecs/common/macx.conf where
# QMAKE_MACOSX_DEPLOYMENT_TARGET is set.
set(description
"Minimum OS X version to target for deployment (at runtime); newer APIs weak linked. Set to empty string for default value.")
if(NOT CMAKE_OSX_DEPLOYMENT_TARGET)
if(NOT CMAKE_SYSTEM_NAME)
# macOS
set(version "11.0")
elseif(CMAKE_SYSTEM_NAME STREQUAL iOS)
set(version "14.0")
endif()
if(version)
set(CMAKE_OSX_DEPLOYMENT_TARGET "${version}" CACHE STRING "${description}")
endif()
endif()
qt_internal_get_darwin_sdk_version(darwin_sdk_version)
set(QT_MAC_SDK_VERSION "${darwin_sdk_version}" CACHE STRING "Darwin SDK version.")
qt_internal_get_xcode_version(xcode_version)
set(QT_MAC_XCODE_VERSION "${xcode_version}" CACHE STRING "Xcode version.")
list(LENGTH CMAKE_OSX_ARCHITECTURES arch_count)
if(NOT CMAKE_SYSTEM_NAME STREQUAL iOS AND arch_count GREATER 0)
foreach(arch ${CMAKE_OSX_ARCHITECTURES})
if(arch STREQUAL "arm64e")
message(WARNING "Applications built against an arm64e Qt architecture will "
"likely fail to run on Apple Silicon. Consider targeting "
"'arm64' instead.")
endif()
endforeach()
endif()
endif()
endfunction()
function(qt_auto_detect_macos_universal)
if(APPLE AND NOT CMAKE_SYSTEM_NAME STREQUAL iOS)
list(LENGTH CMAKE_OSX_ARCHITECTURES arch_count)
set(is_universal "OFF")
if(arch_count GREATER 1)
set(is_universal "ON")
endif()
set(QT_IS_MACOS_UNIVERSAL "${is_universal}" CACHE INTERNAL "Build universal Qt for macOS")
endif()
endfunction()
function(qt_auto_detect_pch)
set(default_value "ON")
if(CMAKE_OSX_ARCHITECTURES AND CMAKE_VERSION VERSION_LESS 3.18.0 AND NOT QT_FORCE_PCH)
list(LENGTH CMAKE_OSX_ARCHITECTURES arch_count)
# CMake versions lower than 3.18 don't support PCH when multiple architectures are set.
# This is the case for simulator_and_device builds.
if(arch_count GREATER 1)
set(default_value "OFF")
message(WARNING "PCH support disabled due to usage of multiple architectures.")
endif()
endif()
option(BUILD_WITH_PCH "Build Qt using precompiled headers?" "${default_value}")
endfunction()
function(qt_auto_detect_win32_arm)
if("${QT_QMAKE_TARGET_MKSPEC}" STREQUAL "win32-arm64-msvc")
set(CMAKE_SYSTEM_NAME "Windows" CACHE STRING "")
set(CMAKE_SYSTEM_VERSION "10" CACHE STRING "")
set(CMAKE_SYSTEM_PROCESSOR "arm64" CACHE STRING "")
endif()
endfunction()
function(qt_auto_detect_linux_x86)
if("${QT_QMAKE_TARGET_MKSPEC}" STREQUAL "linux-g++-32" AND NOT QT_NO_AUTO_DETECT_LINUX_X86)
# Add flag to ensure code is compiled for 32bit x86 ABI aka i386 or its flavors.
set(__qt_toolchain_common_flags_init "-m32")
if(NOT QT_NO_OVERRIDE_LANG_FLAGS_INIT)
set(CMAKE_C_FLAGS_INIT "${__qt_toolchain_common_flags_init}" PARENT_SCOPE)
set(CMAKE_CXX_FLAGS_INIT "${__qt_toolchain_common_flags_init}" PARENT_SCOPE)
set(CMAKE_ASM_FLAGS_INIT "${__qt_toolchain_common_flags_init}" PARENT_SCOPE)
endif()
# Each distro places arch-specific libraries according to its own file system layout.
#
# https://wiki.debian.org/Multiarch/TheCaseForMultiarch
# https://wiki.ubuntu.com/MultiarchSpec
# https://wiki.gentoo.org/wiki/Project:AMD64/Multilib_layout
# https://wiki.archlinux.org/title/official_repositories#multilib
# https://documentation.suse.com/sles/15-SP3/html/SLES-all/cha-64bit.html
# https://pilotlogic.com/sitejoom/index.php/wiki?id=398
# https://unix.stackexchange.com/questions/458069/multilib-and-multiarch
#
# CMake can usually find 32 bit libraries just fine on its own.
# find_library will use prefixes from CMAKE_PREFIX_PATH / CMAKE_SYSTEM_PREFIX_PATH
# and add arch-specific lib folders like 'lib/i386-linux-gnu' on debian based systems
# or lib32/lib64 on other distros.
# The problem is that if no 32 bit library is found, a 64 bit one might get picked up.
# That's why we need to specify additional ignore paths.
#
# The paths used in the code below are Ubuntu specific.
# You can opt out of using them if you are using a different distro, but then you need to
# specify appropriate paths yourself in your own CMake toolchain file.
#
# Note that to absolutely ensure no x86_64 library is picked up on a multiarch /
# multilib-enabled system, you might need to specify extra directories in
# CMAKE_INGORE_PATH for each sub-directory containing a library.
#
# For example to exclude /usr/lib/x86_64-linux-gnu/mit-krb5/libgssapi_krb5.so
# you need to add /usr/lib/x86_64-linux-gnu/mit-krb5 explicitly to CMAKE_IGNORE_PATH.
# Adding just /usr/lib/x86_64-linux-gnu to either CMAKE_IGNORE_PATH or
# CMAKE_IGNORE_PREFIX_PATH is not enough.
#
# Another consideration are results returned by CMake's pkg_check_modules which uses
# pkg-config.
# CMAKE_IGNORE_PATH is not read by pkg_check_modules, but CMAKE_PREFIX_PATH
# values are passed as additional prefixes to look for .pc files, IN ADDITION to the default
# prefixes searched by pkg-config of each specific distro.
# For example on Ubuntu, the default searched paths on an x86_64 host are:
# /usr/local/lib/x86_64-linux-gnu/pkgconfig
# /usr/local/lib/pkgconfig
# /usr/local/share/pkgconfig
# /usr/lib/x86_64-linux-gnu/pkgconfig
# /usr/lib/pkgconfig
# /usr/share/pkgconfig
# To ensure the x86_64 packages are not picked up, the PKG_CONFIG_LIBDIR environment
# variable can be overridden with an explicit list of prefixes.
# Again, the paths below are Ubuntu specific.
if(NOT QT_NO_OVERRIDE_CMAKE_IGNORE_PATH)
set(linux_x86_ignore_path "/usr/lib/x86_64-linux-gnu;/lib/x86_64-linux-gnu")
set(CMAKE_IGNORE_PATH "${linux_x86_ignore_path}" PARENT_SCOPE)
set_property(GLOBAL PROPERTY
_qt_internal_linux_x86_ignore_path "${linux_x86_ignore_path}")
endif()
if(NOT QT_NO_OVERRIDE_PKG_CONFIG_LIBDIR)
set(pc_config_libdir "")
list(APPEND pc_config_libdir "/usr/local/lib/i386-linux-gnu/pkgconfig")
list(APPEND pc_config_libdir "/usr/local/lib/pkgconfig")
list(APPEND pc_config_libdir "/usr/local/share/pkgconfig")
list(APPEND pc_config_libdir "/usr/lib/i386-linux-gnu/pkgconfig")
list(APPEND pc_config_libdir "/usr/lib/pkgconfig")
list(APPEND pc_config_libdir "/usr/share/pkgconfig")
list(JOIN pc_config_libdir ":" pc_config_libdir)
set_property(GLOBAL PROPERTY
_qt_internal_linux_x86_pc_config_libdir "${pc_config_libdir}")
# Overrides the default prefix list.
set(ENV{PKG_CONFIG_LIBDIR} "${pc_config_libdir}")
# Overrides the additional prefixes list.
set(ENV{PKG_CONFIG_DIR} "")
endif()
endif()
endfunction()
function(qt_auto_detect_integrity)
if(
# Qt's custom CMake toolchain file sets this value.
CMAKE_SYSTEM_NAME STREQUAL "Integrity" OR
# Upstream CMake expects this name, but we don't currently use it in Qt.
CMAKE_SYSTEM_NAME STREQUAL "GHS-MULTI"
)
qt_internal_ensure_static_qt_config()
endif()
endfunction()
# Save the build type before project() might set one.
# This allows us to determine if the user has set an explicit build type that we should use.
function(qt_auto_detect_cmake_build_type)
set(__qt_auto_detect_cmake_build_type_before_project_call "${CMAKE_BUILD_TYPE}" PARENT_SCOPE)
endfunction()
# Let CMake load our custom platform modules.
# CMake-provided platform modules take precedence.
if(NOT QT_AVOID_CUSTOM_PLATFORM_MODULES)
list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/platforms")
endif()
qt_auto_detect_cmake_generator()
qt_auto_detect_cyclic_toolchain()
qt_auto_detect_cmake_config()
qt_auto_detect_darwin()
qt_auto_detect_macos_universal()
qt_auto_detect_ios()
qt_auto_detect_android()
qt_auto_detect_pch()
qt_auto_detect_wasm()
qt_auto_detect_win32_arm()
qt_auto_detect_linux_x86()
qt_auto_detect_integrity()
qt_auto_detect_cmake_build_type()
qt_auto_detect_vcpkg()
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