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qt5base-lts/cmake/QtAutoDetect.cmake
Simo Fält 3969ef40cc Add instructions for Windows 10 on Arm config 
Task-number: QTQAINFRA-3966
Change-Id: Ib8ac80a5b8aa5c88d9e5d0eaad9ba550cc2442f8
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Fathi Boudra
2021-05-05 16:28:27 +03:00

464 lines
20 KiB
CMake
Raw Blame History

#
# 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.
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 "")
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 ${CMAKE_SYSTEM_NAME} as shared libraries is not supported.")
endif()
# this version of Qt needs this version of emscripten
set(QT_EMCC_RECOMMENDED_VERSION 2.0.14 CACHE STRING INTERNAL FORCE)
endif()
endif()
endfunction()
function(qt_auto_detect_cmake_generator)
if(NOT CMAKE_GENERATOR MATCHES "Ninja" AND NOT QT_SILENCE_CMAKE_GENERATOR_WARNING)
message(WARNING
"The officially supported CMake generator for building Qt is Ninja. "
"You are using: '${CMAKE_GENERATOR}' instead. "
"Thus, you might encounter issues. Use at your own risk.")
endif()
endfunction()
# Peek into CMAKE_TOOLCHAIN_FILE before it is actually loaded.
#
# Usage:
# qt_autodetect_read_toolchain_file(tcf VARIABLES CMAKE_SYSTEM_NAME)
# if(tcf_CMAKE_SYSTEM_NAME STREQUAL "Android")
# ...we have detected Android
# endif()
#
function(qt_auto_detect_read_toolchain_file prefix)
cmake_parse_arguments(arg "" "" "VARIABLES" ${ARGN})
set(script_path "${CMAKE_CURRENT_LIST_DIR}/QtLoadFilePrintVars.cmake")
execute_process(
COMMAND "${CMAKE_COMMAND}" "-DIN_FILE=${CMAKE_TOOLCHAIN_FILE}"
"-DVARIABLES=${arg_VARIABLES}" -P "${script_path}"
RESULT_VARIABLE exit_code
OUTPUT_VARIABLE output
ERROR_VARIABLE ignore)
if(NOT exit_code EQUAL 0)
message(FATAL_ERROR "Executing CMake script ${script_path} failed with code ${exit_code}.")
endif()
string(REGEX REPLACE "^.*---QtLoadFilePrintVars---\n" "" output "${output}")
string(REPLACE ";" "\;" output "${output}")
string(REPLACE "\n" ";" output "${output}")
foreach(line IN LISTS output)
string(REGEX MATCH "-- ([^ ]+) (.*)" m "${line}")
if(CMAKE_MATCH_1 IN_LIST arg_VARIABLES)
set(${prefix}_${CMAKE_MATCH_1} "${CMAKE_MATCH_2}" PARENT_SCOPE)
endif()
endforeach()
endfunction()
function(qt_auto_detect_android)
# 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 '${toolchain_file}'. "
"Please specify the toolchain file with -DCMAKE_TOOLCHAIN_FILE=<file>.")
endif()
endif()
if("${CMAKE_TOOLCHAIN_FILE}" STREQUAL ""
AND (DEFINED ANDROID_ABI OR DEFINED ANDROID_NATIVE_API_LEVEL))
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)
qt_auto_detect_read_toolchain_file(tcf VARIABLES CMAKE_SYSTEM_NAME)
if(tcf_CMAKE_SYSTEM_NAME STREQUAL "Android")
set(android_detected TRUE)
else()
set(android_detected FALSE)
endif()
if(android_detected)
message(STATUS "Android toolchain file 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 ${android_detected} CACHE STRING "")
elseif (QT_AUTODETECT_ANDROID)
message(STATUS "Android toolchain file detected")
endif()
endfunction()
function(qt_auto_detect_vpckg)
if(DEFINED ENV{VCPKG_ROOT})
set(vcpkg_toolchain_file "$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 "")
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 ${CMAKE_SYSTEM_NAME} as shared libraries is not supported.")
endif()
# Disable qt rpaths for iOS, just like mkspecs/common/uikit.conf does, due to those
# bundles not being able to use paths outside the app bundle. Not sure this is strictly
# needed though.
set(QT_DISABLE_RPATH "OFF" CACHE BOOL "Disable automatic Qt rpath handling." FORCE)
endif()
endfunction()
function(qt_auto_detect_cmake_config)
if(CMAKE_CONFIGURATION_TYPES)
# Allow users to specify this option.
if(NOT QT_MULTI_CONFIG_FIRST_CONFIG)
list(GET CMAKE_CONFIGURATION_TYPES 0 first_config_type)
set(QT_MULTI_CONFIG_FIRST_CONFIG "${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()
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_vpckg()
qt_auto_detect_pch()
qt_auto_detect_wasm()
qt_auto_detect_win32_arm()
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