diff options
Diffstat (limited to 'cmake/QtAutoDetect.cmake')
| -rw-r--r-- | cmake/QtAutoDetect.cmake | 456 |
1 files changed, 4 insertions, 452 deletions
diff --git a/cmake/QtAutoDetect.cmake b/cmake/QtAutoDetect.cmake index ffa6028320..464e8e900b 100644 --- a/cmake/QtAutoDetect.cmake +++ b/cmake/QtAutoDetect.cmake @@ -1,453 +1,5 @@ -# -# 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. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: BSD-3-Clause -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 ${CMAKE_SYSTEM_NAME} as shared libraries is not supported.") - endif() -endfunction() - -function(qt_auto_detect_wasm) - if("${QT_QMAKE_TARGET_MKSPEC}" STREQUAL "wasm-emscripten" AND DEFINED ENV{EMSDK}) - if(NOT DEFINED QT_AUTODETECT_WASM) - # detect EMSCRIPTEN_ROOT path - file(READ "$ENV{EMSDK}/.emscripten" ver) - string(REGEX MATCH "EMSCRIPTEN_ROOT.*$" EMROOT "${ver}") - string(REGEX MATCH "'([^' ]*)'" EMROOT2 "${EMROOT}") - string(REPLACE "'" "" EMROOT_PATH "${EMROOT2}") - - # get emscripten version - if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows") - set (EXECUTE_COMMANDPATH "$ENV{EMSDK}/${EMROOT_PATH}/emcc.bat") - else() - set (EXECUTE_COMMANDPATH "$ENV{EMSDK}/${EMROOT_PATH}/emcc") - endif() - - file(TO_NATIVE_PATH "${EXECUTE_COMMANDPATH}" EXECUTE_COMMAND) - execute_process(COMMAND ${EXECUTE_COMMAND} --version - OUTPUT_VARIABLE emOutput - OUTPUT_STRIP_TRAILING_WHITESPACE - ERROR_VARIABLE emrun_error - RESULT_VARIABLE result) - if(NOT emOutput) - message(FATAL_ERROR - "Can't determine Emscripten version! Error: ${emrun_error}") - endif() - string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" CMAKE_EMSDK_REGEX_VERSION "${emOutput}") - set(EMCC_VERSION "${CMAKE_EMSDK_REGEX_VERSION}" CACHE STRING INTERNAL FORCE) - - # find toolchain file - if(NOT DEFINED CMAKE_TOOLCHAIN_FILE) - set(wasm_toolchain_file "$ENV{EMSDK}/${EMROOT_PATH}/cmake/Modules/Platform/Emscripten.cmake") - set(CMAKE_TOOLCHAIN_FILE "${wasm_toolchain_file}" CACHE STRING "" FORCE) - endif() - - if(EXISTS "${CMAKE_TOOLCHAIN_FILE}") - message(STATUS "Emscripten ${CMAKE_EMSDK_REGEX_VERSION} toolchain file detected at ${CMAKE_TOOLCHAIN_FILE}") - else() - message(FATAL_ERROR "Cannot find the toolchain file Emscripten.cmake. " - "Please specify the toolchain file with -DCMAKE_TOOLCHAIN_FILE=<file>.") - endif() - set(QT_AUTODETECT_WASM TRUE CACHE BOOL "") - - qt_internal_ensure_static_qt_config() - # this version of Qt needs this version of emscripten - set(QT_EMCC_RECOMMENDED_VERSION 2.0.14 CACHE STRING INTERNAL FORCE) - endif() - endif() -endfunction() - -function(qt_auto_detect_cmake_generator) - if(NOT CMAKE_GENERATOR MATCHES "Ninja" AND NOT QT_SILENCE_CMAKE_GENERATOR_WARNING) - message(WARNING - "The officially supported CMake generator for building Qt is Ninja. " - "You are using: '${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...") - if(NOT DEFINED ANDROID_NATIVE_API_LEVEL) - message(STATUS "ANDROID_NATIVE_API_LEVEL was not specified, using API level 23 as default") - 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 ${android_detected} CACHE STRING "") - elseif (QT_AUTODETECT_ANDROID) - message(STATUS "Android build detected") - endif() -endfunction() - -function(qt_auto_detect_vcpkg) - if(DEFINED ENV{VCPKG_ROOT}) - set(vcpkg_toolchain_file "$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 "${CMAKE_TOOLCHAIN_FILE}" CACHE STRING "") - endif() - unset(supplied_toolchain_file) - endif() - set(CMAKE_TOOLCHAIN_FILE "${vcpkg_toolchain_file}" CACHE STRING "" FORCE) - message(STATUS "Using vcpkg from $ENV{VCPKG_ROOT}") - if(DEFINED ENV{VCPKG_DEFAULT_TRIPLET} AND NOT DEFINED VCPKG_TARGET_TRIPLET) - set(VCPKG_TARGET_TRIPLET "$ENV{VCPKG_DEFAULT_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 - OR CMAKE_SYSTEM_NAME STREQUAL watchOS - OR CMAKE_SYSTEM_NAME STREQUAL tvOS) - 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(CMAKE_SYSTEM_NAME STREQUAL iOS) - 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 proviude 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() - elseif(CMAKE_SYSTEM_NAME STREQUAL tvOS) - if(simulator_and_device) - set(osx_architectures "arm64;x86_64") - elseif(QT_UIKIT_SDK STREQUAL "appletvos") - set(osx_architectures "arm64") - elseif(QT_UIKIT_SDK STREQUAL "appletvsimulator") - set(osx_architectures "x86_64") - else() - if(NOT DEFINED QT_UIKIT_SDK) - message(FATAL_ERROR "Please proviude a value for -DQT_UIKIT_SDK." - " Possible values: appletvos, appletvsimulator.") - else() - message(FATAL_ERROR - "Unknown SDK argument given to QT_UIKIT_SDK: ${QT_UIKIT_SDK}.") - endif() - endif() - elseif(CMAKE_SYSTEM_NAME STREQUAL watchOS) - if(simulator_and_device) - set(osx_architectures "armv7k;i386") - elseif(QT_UIKIT_SDK STREQUAL "watchos") - set(osx_architectures "armv7k") - elseif(QT_UIKIT_SDK STREQUAL "watchsimulator") - set(osx_architectures "i386") - else() - if(NOT DEFINED QT_UIKIT_SDK) - message(FATAL_ERROR "Please proviude a value for -DQT_UIKIT_SDK." - " Possible values: watchos, watchsimulator.") - else() - message(FATAL_ERROR - "Unknown SDK argument given to QT_UIKIT_SDK: ${QT_UIKIT_SDK}.") - endif() - endif() - endif() - - # For non simulator_and_device builds, we need to explicitly set the SYSROOT aka the sdk - # value. - if(QT_UIKIT_SDK) - set(CMAKE_OSX_SYSROOT "${QT_UIKIT_SDK}" CACHE STRING "") - endif() - set(CMAKE_OSX_ARCHITECTURES "${osx_architectures}" CACHE STRING "") - - qt_internal_ensure_static_qt_config() - - # Disable qt rpaths for iOS, just like mkspecs/common/uikit.conf does, due to those - # bundles not being able to use paths outside the app bundle. Not sure this is strictly - # needed though. - set(QT_DISABLE_RPATH "OFF" CACHE BOOL "Disable automatic Qt rpath handling." FORCE) - endif() -endfunction() - -function(qt_auto_detect_cmake_config) - if(CMAKE_CONFIGURATION_TYPES) - # Allow users to specify this option. - if(NOT QT_MULTI_CONFIG_FIRST_CONFIG) - list(GET CMAKE_CONFIGURATION_TYPES 0 first_config_type) - set(QT_MULTI_CONFIG_FIRST_CONFIG "${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(IOS) - set(sdk_name "iphoneos") - elseif(TVOS) - set(sdk_name "appletvos") - elseif(WATCHOS) - set(sdk_name "watchos") - 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) - if(NOT xcode_version) - message(NOTICE "Can't determine Xcode version. Error: ${xcrun_error}") - endif() - string(REPLACE "\n" " " xcode_version "${xcode_version}") - string(STRIP "${xcode_version}" xcode_version) - set(${out_var} "${xcode_version}" PARENT_SCOPE) - endif() -endfunction() - -function(qt_auto_detect_darwin) - if(APPLE) - # If no CMAKE_OSX_DEPLOYMENT_TARGET is provided, default to a value that Qt defines. - # This replicates the behavior in mkspecs/common/macx.conf where - # QMAKE_MACOSX_DEPLOYMENT_TARGET is set. - set(description - "Minimum OS X version to target for deployment (at runtime); newer APIs weak linked. Set to empty string for default value.") - if(NOT CMAKE_OSX_DEPLOYMENT_TARGET) - if(NOT CMAKE_SYSTEM_NAME) - # macOS - set(version "10.14") - elseif(CMAKE_SYSTEM_NAME STREQUAL iOS) - set(version "13.0") - elseif(CMAKE_SYSTEM_NAME STREQUAL watchOS) - set(version "6.0") - elseif(CMAKE_SYSTEM_NAME STREQUAL tvOS) - set(version "13.0") - endif() - if(version) - set(CMAKE_OSX_DEPLOYMENT_TARGET "${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.") - - set(device_names "iOS" "watchOS" "tvOS") - list(LENGTH CMAKE_OSX_ARCHITECTURES arch_count) - if(NOT CMAKE_SYSTEM_NAME IN_LIST device_names AND arch_count GREATER 0) - foreach(arch ${CMAKE_OSX_ARCHITECTURES}) - if(arch STREQUAL "arm64e") - message(WARNING "Applications built against an arm64e Qt architecture will " - "likely fail to run on Apple Silicon. Consider targeting " - "'arm64' instead.") - endif() - endforeach() - endif() - endif() -endfunction() - -function(qt_auto_detect_macos_universal) - set(device_names "iOS" "watchOS" "tvOS") - if(APPLE AND NOT CMAKE_SYSTEM_NAME IN_LIST device_names) - list(LENGTH CMAKE_OSX_ARCHITECTURES arch_count) - - set(is_universal "OFF") - if(arch_count GREATER 1) - set(is_universal "ON") - endif() - - set(QT_IS_MACOS_UNIVERSAL "${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_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() - -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_vcpkg() -qt_auto_detect_pch() -qt_auto_detect_wasm() -qt_auto_detect_win32_arm() -qt_auto_detect_integrity() +include("${CMAKE_CURRENT_LIST_DIR}/QtAutoDetectHelpers.cmake") +qt_internal_setup_autodetect() |