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qt5base-lts/cmake/QtAutoDetect.cmake
Alexandru Croitor 627351f561 CMake: Set minimum deployment target for darwin platforms 
Same value as QMAKE_IOS_DEPLOYMENT_TARGET in
mkspecs/macx-ios-clang/qmake.conf, etc.

Change-Id: I1f6a07d73c2126d0286e8d26f7e61a690607c8ce
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
2020-03-06 17:12:40 +01:00

210 lines
9.1 KiB
CMake
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#
# Collection of auto dection routines to improve the user eperience 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_android)
if(DEFINED CMAKE_TOOLCHAIN_FILE AND NOT DEFINED QT_AUTODETECT_ANDROID
AND NOT QT_BUILD_STANDALONE_TESTS)
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)
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 21 as default")
set(ANDROID_NATIVE_API_LEVEL 21 CACHE STRING "")
endif()
if(NOT DEFINED ANDROID_STL)
set(ANDROID_STL "c++_shared" CACHE STRING "")
endif()
endif()
set(QT_AUTODETECT_ANDROID ${android_detected} CACHE STRING "")
elseif (QT_AUTODETECT_ANDROID)
message(STATUS "Android toolchain file detected")
endif()
endfunction()
function(qt_auto_detect_vpckg)
if(DEFINED ENV{VCPKG_ROOT} AND NOT QT_BUILD_STANDALONE_TESTS)
set(vcpkg_toolchain_file "$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 ${CMAKE_SYSTEM_NAME} toolchain file.")
# The QT_UIKIT_SDK check simulates the input.sdk condition for simulator_and_device in
# configure.json.
# If the variable is explicitly provided, assume simulator_and_device to be off.
if(QT_UIKIT_SDK)
set(simulator_and_device OFF)
elseif(QT_FORCE_SIMULATOR_AND_DEVICE)
# TODO: Once we get simulator_and_device support in upstream CMake, only then allow
# usage of simulator_and_device without forcing.
set(simulator_and_device ON)
else()
# If QT_UIKIT_SDK is not provided, default to simulator.
set(simulator_and_device OFF)
set(QT_UIKIT_SDK "iphonesimulator" CACHE "STRING" "Chosen uikit SDK.")
endif()
message(STATUS "simulator_and_device set to: \"${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()
message(STATUS "CMAKE_OSX_SYSROOT set to: \"${CMAKE_OSX_SYSROOT}\".")
message(STATUS "CMAKE_OSX_ARCHITECTURES set to: \"${osx_architectures}\".")
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 ${CMAKE_SYSTEM_NAME} as shared libraries is not supported.")
endif()
endif()
endfunction()
function(qt_auto_detect_cmake_config)
if(CMAKE_CONFIGURATION_TYPES)
# Allow users to specify this option.
if(NOT QT_MULTI_CONFIG_FIRST_CONFIG)
list(GET CMAKE_CONFIGURATION_TYPES 0 first_config_type)
set(QT_MULTI_CONFIG_FIRST_CONFIG "${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")
set(CMAKE_CROSS_CONFIGS "all" CACHE STRING "")
set(CMAKE_DEFAULT_BUILD_TYPE "${QT_MULTI_CONFIG_FIRST_CONFIG}" CACHE STRING "")
endif()
endif()
endfunction()
function(qt_auto_detect_darwin)
if(APPLE)
# If no CMAKE_OSX_DEPLOYMENT_TARGET is provided, default to a value that Qt defines.
# This replicates the behavior in mkspecs/common/macx.conf where
# QMAKE_MACOSX_DEPLOYMENT_TARGET is set.
set(description
"Minimum OS X version to target for deployment (at runtime); newer APIs weak linked. Set to empty string for default value.")
if(NOT CMAKE_OSX_DEPLOYMENT_TARGET)
if(NOT CMAKE_SYSTEM_NAME)
# macOS
set(version "10.14")
elseif(CMAKE_SYSTEM_NAME STREQUAL iOS)
set(version "12.0")
elseif(CMAKE_SYSTEM_NAME STREQUAL watchOS)
set(version "5.0")
elseif(CMAKE_SYSTEM_NAME STREQUAL tvOS)
set(version "12.0")
endif()
if(version)
set(CMAKE_OSX_DEPLOYMENT_TARGET "${version}" CACHE STRING "${description}")
endif()
endif()
if(CMAKE_OSX_DEPLOYMENT_TARGET)
message(STATUS
"CMAKE_OSX_DEPLOYMENT_TARGET set to: \"${CMAKE_OSX_DEPLOYMENT_TARGET}\".")
endif()
endif()
endfunction()
qt_auto_detect_cmake_config()
qt_auto_detect_darwin()
qt_auto_detect_ios()
qt_auto_detect_android()
qt_auto_detect_vpckg()
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