7e7f41e40c
This maps the behavior of mkspecs/features/qt_common.prf and enables the use of C++17 for example in Android, where the toolchain supports it anyway. Change-Id: I41f4bdb160a3929e2fb78f36efb1ad5f2ad391a5 Reviewed-by: Qt CMake Build Bot Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
127 lines
4.4 KiB
CMake
127 lines
4.4 KiB
CMake
## 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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set(_default_build_type "Release")
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if(EXISTS "${CMAKE_SOURCE_DIR}/.git")
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set(_default_build_type "Debug")
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endif()
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if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
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message(STATUS "Setting build type to '${_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 PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo") # Set the possible values of build type for cmake-gui
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endif()
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# Appends a 'debug postfix' to library targets (not executables)
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# e.g. lib/libQt6DBus_debug.5.12.0.dylib
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if(WIN32)
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set(CMAKE_DEBUG_POSTFIX "d")
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elseif(APPLE)
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set(CMAKE_DEBUG_POSTFIX "_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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# 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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# Default to hidden visibility for symbols:
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set(CMAKE_C_VISIBILITY_PRESET hidden)
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set(CMAKE_CXX_VISIBILITY_PRESET hidden)
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set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
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# Detect non-prefix builds, either when the install prefix is set to the binary dir
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# or when enabling developer builds and no prefix 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")
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if((CMAKE_INSTALL_PREFIX STREQUAL CMAKE_BINARY_DIR) OR
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(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND FEATURE_developer_build))
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set(__qt_will_install_value OFF)
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# Handle non-prefix builds by setting the CMake install prefix to point to qtbase's build
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# dir.
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# While building another repo (like qtsvg), the CMAKE_INSTALL_PREFIX or CMAKE_PREFIX_PATH
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# (either work) should be set on the command line to point to the qtbase build dir.
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set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR} CACHE PATH
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"Install path prefix, prepended onto install directories." FORCE)
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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 ${__qt_will_install_value} CACHE BOOL
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"Boolean indicating if doing a Qt prefix build (vs non-prefix build)." FORCE)
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unset(__qt_will_install_value)
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endif()
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# Specify the QT_SOURCE_TREE only when building qtbase. Needed by some tests when the tests are
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# built as part of the project, and not standalone. For standalone tests, the value is set in
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# QtBuildInternalsExtra.cmake.
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if(PROJECT_NAME STREQUAL "QtBase")
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set(QT_SOURCE_TREE "${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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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_TESTING ON)
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else()
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set(QT_BUILD_TESTING OFF)
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endif()
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## Set up testing
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option(BUILD_TESTING "Build the testing tree." ${QT_BUILD_TESTING})
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include(CTest)
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enable_testing()
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# Set up building of examples.
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option(BUILD_EXAMPLES "Build Qt examples" ON)
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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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## add_qt_module and co.:
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include(QtBuild)
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## Qt Feature support:
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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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## Set up non-prefix build:
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qt_set_up_nonprefix_build()
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qt_set_language_standards()
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## Find host tools (if non native):
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set(QT_HOST_PATH "" CACHE PATH "Installed Qt host directory path, used for cross compiling.")
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if (CMAKE_CROSSCOMPILING AND NOT IS_DIRECTORY ${QT_HOST_PATH})
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message(FATAL_ERROR "You need to set QT_HOST_PATH to cross compile Qt.")
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endif()
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## Enable support for sanitizers:
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include(${CMAKE_CURRENT_LIST_DIR}/3rdparty/extra-cmake-modules/modules/ECMEnableSanitizers.cmake)
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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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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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endif()
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