qt5base-lts/cmake/QtPublicTargetsHelpers.cmake

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# 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)
## QtPlatform Target:
add_library(Platform INTERFACE)
add_library(Qt::Platform ALIAS Platform)
target_include_directories(Platform
INTERFACE
$<BUILD_INTERFACE:${QT_PLATFORM_DEFINITION_DIR_ABSOLUTE}>
$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>
$<INSTALL_INTERFACE:${QT_PLATFORM_DEFINITION_DIR}>
$<INSTALL_INTERFACE:${INSTALL_INCLUDEDIR}>
)
target_compile_definitions(Platform INTERFACE ${QT_PLATFORM_DEFINITIONS})
# 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()
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)
endfunction()