qt5base-lts/cmake/QtPlatformTargetHelpers.cmake
Yuhang Zhao 389507a047 CMake: make compile options consistent for Qt created libraries
Currently some libraries created by Qt are lacking some compile
definitions and compile options, and this issue is causing us
troubles when building Qt statically. This patch tries to reduce
the parameter difference when compiling Qt's own libraries.

Change-Id: I3842943a874fab32ef90980e8aa29f5beb01feeb
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2023-05-31 01:08:45 +00:00

94 lines
3.7 KiB
CMake

# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
# Defines the public Qt::Platform target, which serves as a dependency for all internal Qt target
# as well as user projects consuming Qt.
function(qt_internal_setup_public_platform_target)
qt_internal_get_platform_definition_include_dir(
install_interface_definition_dir
build_interface_definition_dir
)
## QtPlatform Target:
add_library(Platform INTERFACE)
add_library(Qt::Platform ALIAS Platform)
add_library(${INSTALL_CMAKE_NAMESPACE}::Platform ALIAS Platform)
target_include_directories(Platform
INTERFACE
$<BUILD_INTERFACE:${build_interface_definition_dir}>
$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>
$<INSTALL_INTERFACE:${install_interface_definition_dir}>
$<INSTALL_INTERFACE:${INSTALL_INCLUDEDIR}>
)
target_compile_definitions(Platform INTERFACE ${QT_PLATFORM_DEFINITIONS})
set_target_properties(Platform PROPERTIES
_qt_package_version "${PROJECT_VERSION}"
)
set_property(TARGET Platform
APPEND PROPERTY
EXPORT_PROPERTIES "_qt_package_version")
# When building on android we need to link against the logging library
# in order to satisfy linker dependencies. Both of these libraries are part of
# the NDK.
if (ANDROID)
target_link_libraries(Platform INTERFACE log)
endif()
if (QT_FEATURE_stdlib_libcpp)
target_compile_options(Platform INTERFACE "$<$<COMPILE_LANGUAGE:CXX>:-stdlib=libc++>")
set(libc_link_option "-stdlib=libc++")
if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.18")
set(libc_link_option "$<$<LINK_LANGUAGE:CXX>:-stdlib=libc++>")
endif()
target_link_options(Platform INTERFACE "${libc_link_option}")
endif()
if (QT_FEATURE_no_direct_extern_access)
target_compile_options(Platform INTERFACE "$<$<CXX_COMPILER_ID:GNU>:-mno-direct-extern-access>")
target_compile_options(Platform INTERFACE "$<$<CXX_COMPILER_ID:Clang>:-fno-direct-access-external-data>")
endif()
qt_set_msvc_cplusplus_options(Platform INTERFACE)
# Propagate minimum C++ 17 via Platform to Qt consumers (apps), after the global features
# are computed.
qt_set_language_standards_interface_compile_features(Platform)
# By default enable utf8 sources for both Qt and Qt consumers. Can be opted out.
qt_enable_utf8_sources(Platform)
# By default enable unicode on WIN32 platforms for both Qt and Qt consumers. Can be opted out.
qt_internal_enable_unicode_defines(Platform)
# Generate a pkgconfig for Qt::Platform.
qt_internal_generate_pkg_config_file(Platform)
# Make sure Qt users use the same symbols as how we build Qt.
qt_internal_library_deprecation_level(deprecation_defines)
target_compile_definitions(Platform INTERFACE ${deprecation_defines})
endfunction()
function(qt_internal_get_platform_definition_include_dir install_interface build_interface)
# Used by consumers of prefix builds via INSTALL_INTERFACE (relative path).
set(${install_interface} "${INSTALL_MKSPECSDIR}/${QT_QMAKE_TARGET_MKSPEC}" PARENT_SCOPE)
# Used by qtbase in prefix builds via BUILD_INTERFACE
set(build_interface_base_dir
"${CMAKE_CURRENT_LIST_DIR}/../mkspecs"
)
# Used by qtbase and consumers in non-prefix builds via BUILD_INTERFACE
if(NOT QT_WILL_INSTALL)
set(build_interface_base_dir
"${QT_BUILD_DIR}/${INSTALL_MKSPECSDIR}"
)
endif()
get_filename_component(build_interface_dir
"${build_interface_base_dir}/${QT_QMAKE_TARGET_MKSPEC}"
ABSOLUTE
)
set(${build_interface} "${build_interface_dir}" PARENT_SCOPE)
endfunction()