48841c34d2
Before this change, we had the following behaviors.
On platforms other than Windows-MSVC:
- when no build type was specified, we defaulted to Release
- when -developer-build was specified, we defaulted to Debug
- regardless of platform, unless the option was explicitly specified,
we never defaulted to -debug-and-release.
On Windows-MSVC, we always defaulted to Debug. Which is inconsistent
with the rules above.
The difference happens because CMake always sets CMAKE_BUILD_TYPE to
Debug during the first project() call when targeting the Windows-MSVC
platform.
We interpreted that as the user setting the build type, and thus we
didn't want to override what the user specified.
After this change, if we detect that it's cmake setting the build
type, we assign a build type that follows the non-Windows-MSVC rules.
This change unifies the behavior across all platforms.
Adjusted the configure help with the new reality.
Augments 33af62db37
[ChangeLog][configure] When no explicit build type is specified,
Windows will now default to building Release like the other
platforms.
Pick-to: 6.5 6.6
Change-Id: Id2bf269c51cf300ec09751ece2ad721869e0f90c
Reviewed-by: Amir Masoud Abdol <amir.abdol@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
399 lines
16 KiB
CMake
399 lines
16 KiB
CMake
# Copyright (C) 2022 The Qt Company Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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## Set a default build type if none was specified
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# Set the QT_IS_BUILDING_QT variable so we can verify whether we are building
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# Qt from source
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set(QT_BUILDING_QT TRUE CACHE
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TYPE STRING "When this is present and set to true, it signals that we are building Qt from source.")
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# Pre-calculate the developer_build feature if it's set by the user via INPUT_developer_build
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if(NOT FEATURE_developer_build AND INPUT_developer_build
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AND NOT "${INPUT_developer_build}" STREQUAL "undefined")
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set(FEATURE_developer_build ON)
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endif()
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# Pre-calculate the no_prefix feature if it's set by configure via INPUT_no_prefix.
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# This needs to be done before qtbase/configure.cmake is processed.
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if(NOT FEATURE_no_prefix AND INPUT_no_prefix
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AND NOT "${INPUT_no_prefix}" STREQUAL "undefined")
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set(FEATURE_no_prefix ON)
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endif()
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set(_default_build_type "Release")
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if(FEATURE_developer_build)
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set(_default_build_type "Debug")
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endif()
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function(qt_internal_set_message_log_level out_var)
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# Decide whether output should be verbose or not.
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# Default to verbose (--log-level=STATUS) in a developer-build and
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# non-verbose (--log-level=NOTICE) otherwise.
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# If a custom CMAKE_MESSAGE_LOG_LEVEL was specified, it takes priority.
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# Passing an explicit --log-level=Foo has the highest priority.
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if(NOT CMAKE_MESSAGE_LOG_LEVEL)
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if(FEATURE_developer_build OR QT_FEATURE_developer_build)
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set(CMAKE_MESSAGE_LOG_LEVEL "STATUS")
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else()
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set(CMAKE_MESSAGE_LOG_LEVEL "NOTICE")
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endif()
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set(${out_var} "${CMAKE_MESSAGE_LOG_LEVEL}" PARENT_SCOPE)
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endif()
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endfunction()
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qt_internal_set_message_log_level(CMAKE_MESSAGE_LOG_LEVEL)
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# Reset content of extra build internal vars for each inclusion of QtSetup.
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unset(QT_EXTRA_BUILD_INTERNALS_VARS)
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# Save the global property in a variable to make it available to feature conditions.
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get_property(QT_GENERATOR_IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
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# Try to detect if an explicit CMAKE_BUILD_TYPE was set by the user.
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# CMake sets CMAKE_BUILD_TYPE_INIT to Debug on most Windows platforms and doesn't set
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# anything for UNIXes. CMake assigns CMAKE_BUILD_TYPE_INIT to CMAKE_BUILD_TYPE during
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# first project() if CMAKE_BUILD_TYPE has no previous value.
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# We use extra information about the state of CMAKE_BUILD_TYPE before the first
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# project() call that's set in QtAutodetect.
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# STREQUAL check needs to have expanded variables because an undefined var is not equal
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# to an empty defined var.
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# See also qt_internal_force_set_cmake_build_type_conditionally which is used
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# to set the build type when building other repos or tests.
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if("${CMAKE_BUILD_TYPE}" STREQUAL "${CMAKE_BUILD_TYPE_INIT}"
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AND NOT __qt_auto_detect_cmake_build_type_before_project_call
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AND NOT CMAKE_CONFIGURATION_TYPES)
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message(STATUS "Setting build type to '${_default_build_type}' as none was specified.")
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set(CMAKE_BUILD_TYPE "${_default_build_type}" CACHE STRING "Choose the type of build." FORCE)
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set_property(CACHE CMAKE_BUILD_TYPE
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PROPERTY STRINGS
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"Debug" "Release" "MinSizeRel" "RelWithDebInfo") # Set the possible values for cmake-gui.
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elseif(CMAKE_CONFIGURATION_TYPES)
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message(STATUS "Building for multiple configurations: ${CMAKE_CONFIGURATION_TYPES}.")
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message(STATUS "Main configuration is: ${QT_MULTI_CONFIG_FIRST_CONFIG}.")
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if(CMAKE_NINJA_MULTI_DEFAULT_BUILD_TYPE)
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message(STATUS
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"Default build configuration set to '${CMAKE_NINJA_MULTI_DEFAULT_BUILD_TYPE}'.")
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endif()
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if(CMAKE_GENERATOR STREQUAL "Ninja")
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message(FATAL_ERROR
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"It's not possible to build multiple configurations with the single config Ninja "
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"generator. Consider configuring with -G\"Ninja Multi-Config\" instead of -GNinja."
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)
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endif()
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else()
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message(STATUS "CMAKE_BUILD_TYPE was set to: '${CMAKE_BUILD_TYPE}'")
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endif()
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# Append a config-specific postfix to library names to ensure distinct names
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# in a multi-config build.
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# e.g. lib/libQt6DBus_relwithdebinfo.6.3.0.dylib
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# Don't apply the postfix to the first encountered release-like config, so we have at least one
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# config without a postifx.
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if(QT_GENERATOR_IS_MULTI_CONFIG AND CMAKE_CONFIGURATION_TYPES)
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set(__qt_setup_release_configs Release RelWithDebInfo MinSizeRel)
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set(__qt_setup_found_first_release_config FALSE)
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foreach(__qt_setup_config_type IN LISTS CMAKE_CONFIGURATION_TYPES)
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# Skip assigning postfix for the first release-like config.
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if(NOT __qt_setup_found_first_release_config
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AND __qt_setup_config_type IN_LIST __qt_setup_release_configs)
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set(__qt_setup_found_first_release_config TRUE)
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continue()
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endif()
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string(TOLOWER "${__qt_setup_config_type}" __qt_setup_config_type_lower)
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string(TOUPPER "${__qt_setup_config_type}" __qt_setup_config_type_upper)
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set(CMAKE_${__qt_setup_config_type_upper}_POSTFIX "_${__qt_setup_config_type_lower}")
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if(APPLE)
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set(CMAKE_FRAMEWORK_MULTI_CONFIG_POSTFIX_${__qt_setup_config_type_upper}
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"_${__qt_setup_config_type_lower}")
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endif()
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endforeach()
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endif()
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# Override the generic debug postfixes above with custom debug postfixes (even in a single config
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# build) to follow the conventions we had since Qt 5.
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# e.g. lib/libQt6DBus_debug.6.3.0.dylib
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if(WIN32)
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if(MINGW)
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# On MinGW we don't have "d" suffix for debug libraries like on Linux,
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# unless we're building debug and release libraries in one go.
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if(QT_GENERATOR_IS_MULTI_CONFIG)
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set(CMAKE_DEBUG_POSTFIX "d")
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endif()
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else()
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set(CMAKE_DEBUG_POSTFIX "d")
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endif()
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elseif(APPLE)
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set(CMAKE_DEBUG_POSTFIX "_debug")
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set(CMAKE_FRAMEWORK_MULTI_CONFIG_POSTFIX_DEBUG "_debug")
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endif()
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## Position independent code:
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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# Does the linker support position independent code?
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include(CheckPIESupported)
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check_pie_supported()
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# Do not relink dependent libraries when no header has changed:
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set(CMAKE_LINK_DEPENDS_NO_SHARED ON)
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# Detect non-prefix builds: either when the qtbase install prefix is set to the binary dir
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# or when a developer build is explicitly enabled and no install prefix (or staging prefix)
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# is specified.
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# This detection only happens when building qtbase, and later is propagated via the generated
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# QtBuildInternalsExtra.cmake file.
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if (PROJECT_NAME STREQUAL "QtBase" AND NOT QT_BUILD_STANDALONE_TESTS)
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if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
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# Handle both FEATURE_ and QT_FEATURE_ cases when they are specified on the command line
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# explicitly. It's possible for one to be set, but not the other, because
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# qtbase/configure.cmake is not processed by this point.
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if((FEATURE_developer_build
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OR QT_FEATURE_developer_build
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OR FEATURE_no_prefix
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OR QT_FEATURE_no_prefix
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)
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AND NOT CMAKE_STAGING_PREFIX)
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# Handle non-prefix builds by setting the CMake install prefix to point to qtbase's
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# build dir. While building another repo (like qtsvg) the CMAKE_PREFIX_PATH should be
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# set on the command line to point to the qtbase build dir.
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set(__qt_default_prefix "${QtBase_BINARY_DIR}")
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else()
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if(CMAKE_HOST_WIN32)
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set(__qt_default_prefix "C:/Qt/")
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else()
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set(__qt_default_prefix "/usr/local/")
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endif()
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string(APPEND __qt_default_prefix
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"Qt-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
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endif()
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set(CMAKE_INSTALL_PREFIX ${__qt_default_prefix} CACHE PATH
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"Install path prefix, prepended onto install directories." FORCE)
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unset(__qt_default_prefix)
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endif()
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if(CMAKE_STAGING_PREFIX)
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set(__qt_prefix "${CMAKE_STAGING_PREFIX}")
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else()
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set(__qt_prefix "${CMAKE_INSTALL_PREFIX}")
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endif()
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if(__qt_prefix STREQUAL QtBase_BINARY_DIR)
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set(__qt_will_install_value OFF)
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else()
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set(__qt_will_install_value ON)
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endif()
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set(QT_WILL_INSTALL ${__qt_will_install_value} CACHE BOOL
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"Boolean indicating if doing a Qt prefix build (vs non-prefix build)." FORCE)
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unset(__qt_prefix)
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unset(__qt_will_install_value)
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endif()
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# Specify the QT_SOURCE_TREE only when building qtbase. Needed by some tests when the tests are
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# built as part of the project, and not standalone. For standalone tests, the value is set in
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# QtBuildInternalsExtra.cmake.
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if(PROJECT_NAME STREQUAL "QtBase")
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set(QT_SOURCE_TREE "${QtBase_SOURCE_DIR}" CACHE PATH
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"A path to the source tree of the previously configured QtBase project." FORCE)
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endif()
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# QT_INTERNAL_CONFIGURE_FROM_IDE is set to TRUE for the following known IDE applications:
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# - Qt Creator, detected by QTC_RUN environment variable
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# - CLion, detected by CLION_IDE environment variable
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# - Visual Studio Code, detected by VSCODE_CLI environment variable
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if("$ENV{QTC_RUN}" OR "$ENV{CLION_IDE}" OR "$ENV{VSCODE_CLI}")
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set(QT_INTERNAL_CONFIGURE_FROM_IDE TRUE CACHE INTERNAL "Configuring Qt Project from IDE")
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else()
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set(QT_INTERNAL_CONFIGURE_FROM_IDE FALSE CACHE INTERNAL "Configuring Qt Project from IDE")
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endif()
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if(FEATURE_developer_build)
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if(DEFINED QT_CMAKE_EXPORT_COMPILE_COMMANDS)
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set(CMAKE_EXPORT_COMPILE_COMMANDS ${QT_CMAKE_EXPORT_COMPILE_COMMANDS})
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else()
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
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endif()
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set(_qt_build_tests_default ON)
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set(__build_benchmarks ON)
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# Tests are not built by default with qmake for iOS and friends, and thus the overall build
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# tends to fail. Disable them by default when targeting uikit.
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if(UIKIT OR ANDROID)
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set(_qt_build_tests_default OFF)
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endif()
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# Disable benchmarks for single configuration generators which do not build
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# with release configuration.
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if (CMAKE_BUILD_TYPE AND CMAKE_BUILD_TYPE STREQUAL Debug)
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set(__build_benchmarks OFF)
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endif()
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else()
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set(_qt_build_tests_default OFF)
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set(__build_benchmarks OFF)
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endif()
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# Build Benchmarks
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option(QT_BUILD_BENCHMARKS "Build Qt Benchmarks" ${__build_benchmarks})
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if(QT_BUILD_BENCHMARKS)
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set(_qt_build_tests_default ON)
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endif()
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## Set up testing
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option(QT_BUILD_TESTS "Build the testing tree." ${_qt_build_tests_default})
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unset(_qt_build_tests_default)
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option(QT_BUILD_TESTS_BY_DEFAULT "Should tests be built as part of the default 'all' target." ON)
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if(QT_BUILD_STANDALONE_TESTS)
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# BuildInternals might have set it to OFF on initial configuration. So force it to ON when
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# building standalone tests.
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set(QT_BUILD_TESTS ON CACHE BOOL "Build the testing tree." FORCE)
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# Also force the tests to be built as part of the default build target.
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set(QT_BUILD_TESTS_BY_DEFAULT ON CACHE BOOL
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"Should tests be built as part of the default 'all' target." FORCE)
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endif()
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set(BUILD_TESTING ${QT_BUILD_TESTS} CACHE INTERNAL "")
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if (WASM)
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set(_qt_batch_tests ON)
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else()
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set(_qt_batch_tests OFF)
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endif()
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if(DEFINED INPUT_batch_tests)
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if (${INPUT_batch_tests})
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set(_qt_batch_tests ON)
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else()
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set(_qt_batch_tests OFF)
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endif()
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endif()
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option(QT_BUILD_TESTS_BATCHED "Link all tests into a single binary." ${_qt_batch_tests})
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if(QT_BUILD_TESTS AND QT_BUILD_TESTS_BATCHED AND CMAKE_VERSION VERSION_LESS "3.19")
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message(FATAL_ERROR
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"Test batching requires at least CMake 3.19, due to requiring per-source "
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"TARGET_DIRECTORY assignments and DEFER calls.")
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endif()
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# QT_BUILD_TOOLS_WHEN_CROSSCOMPILING -> QT_FORCE_BUILD_TOOLS
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# pre-6.4 compatibility flag (remove sometime in the future)
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if(CMAKE_CROSSCOMPILING AND QT_BUILD_TOOLS_WHEN_CROSSCOMPILING)
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message(WARNING "QT_BUILD_TOOLS_WHEN_CROSSCOMPILING is deprecated. "
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"Please use QT_FORCE_BUILD_TOOLS instead.")
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set(QT_FORCE_BUILD_TOOLS TRUE CACHE INTERNAL "" FORCE)
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endif()
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# When cross-building, we don't build tools by default. Sometimes this also covers Qt apps as well.
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# Like in qttools/assistant/assistant.pro, load(qt_app), which is guarded by a qtNomakeTools() call.
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set(_qt_build_tools_by_default_default ON)
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if(CMAKE_CROSSCOMPILING AND NOT QT_FORCE_BUILD_TOOLS)
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set(_qt_build_tools_by_default_default OFF)
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endif()
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option(QT_BUILD_TOOLS_BY_DEFAULT "Should tools be built as part of the default 'all' target."
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"${_qt_build_tools_by_default_default}")
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unset(_qt_build_tools_by_default_default)
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include(CTest)
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enable_testing()
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option(QT_BUILD_EXAMPLES "Build Qt examples" OFF)
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option(QT_BUILD_EXAMPLES_BY_DEFAULT "Should examples be built as part of the default 'all' target." ON)
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# FIXME: Support prefix builds as well QTBUG-96232
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if(QT_WILL_INSTALL)
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set(_qt_build_examples_as_external OFF)
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else()
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set(_qt_build_examples_as_external ON)
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endif()
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option(QT_BUILD_EXAMPLES_AS_EXTERNAL "Should examples be built as ExternalProjects."
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${_qt_build_examples_as_external})
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unset(_qt_build_examples_as_external)
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option(QT_BUILD_MANUAL_TESTS "Build Qt manual tests" OFF)
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if(WASM)
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option(QT_BUILD_MINIMAL_STATIC_TESTS "Build minimal subset of tests for static Qt builds" ON)
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else()
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option(QT_BUILD_MINIMAL_STATIC_TESTS "Build minimal subset of tests for static Qt builds" OFF)
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endif()
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option(QT_BUILD_MINIMAL_ANDROID_MULTI_ABI_TESTS
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"Build minimal subset of tests for Android multi-ABI Qt builds" OFF)
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## Path used to find host tools, either when cross-compiling or just when using the tools from
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## a different host build.
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set(QT_HOST_PATH "$ENV{QT_HOST_PATH}" CACHE PATH
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"Installed Qt host directory path, used for cross compiling.")
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## Android platform settings
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if(ANDROID)
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include(QtPlatformAndroid)
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endif()
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## qt_add_module and co.:
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include(QtBuild)
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## Qt Feature support:
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include(QtBuildInformation)
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include(QtFeature)
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## Compiler optimization flags:
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include(QtCompilerOptimization)
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## Compiler flags:
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include(QtCompilerFlags)
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qt_set_language_standards()
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option(QT_USE_CCACHE "Enable the use of ccache")
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if(QT_USE_CCACHE)
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find_program(CCACHE_PROGRAM ccache)
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if(CCACHE_PROGRAM)
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set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_OBJC_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_OBJCXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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else()
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message(FATAL_ERROR "Ccache use was requested, but the program was not found.")
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endif()
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endif()
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option(QT_UNITY_BUILD "Enable unity (jumbo) build")
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set(QT_UNITY_BUILD_BATCH_SIZE "32" CACHE STRING "Unity build batch size")
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if(QT_UNITY_BUILD)
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set(CMAKE_UNITY_BUILD ON)
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set(CMAKE_UNITY_BUILD_BATCH_SIZE "${QT_UNITY_BUILD_BATCH_SIZE}")
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endif()
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option(QT_ALLOW_SYMLINK_IN_PATHS "Allows symlinks in paths." OFF)
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# We need to clean up QT_FEATURE_*, but only once per configuration cycle
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get_property(qt_feature_clean GLOBAL PROPERTY _qt_feature_clean)
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if(NOT qt_feature_clean)
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message(STATUS "Check for feature set changes")
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set_property(GLOBAL PROPERTY _qt_feature_clean TRUE)
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foreach(feature ${QT_KNOWN_FEATURES})
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if(DEFINED "FEATURE_${feature}" AND
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NOT "${QT_FEATURE_${feature}}" STREQUAL "${FEATURE_${feature}}")
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message(" '${feature}' is changed from ${QT_FEATURE_${feature}} \
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to ${FEATURE_${feature}}")
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set(dirty_build TRUE)
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endif()
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unset("QT_FEATURE_${feature}" CACHE)
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endforeach()
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set(QT_KNOWN_FEATURES "" CACHE INTERNAL "" FORCE)
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if(dirty_build)
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set_property(GLOBAL PROPERTY _qt_dirty_build TRUE)
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message(WARNING "Re-configuring in existing build folder. \
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Some features will be re-evaluated automatically.")
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endif()
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endif()
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if(NOT QT_BUILD_EXAMPLES)
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# Disable deployment setup to avoid warnings about missing patchelf with CMake < 3.21.
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set(QT_SKIP_SETUP_DEPLOYMENT ON)
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endif()
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option(QT_ALLOW_DOWNLOAD "Allows files to be downloaded when building Qt." OFF)
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