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function(qt_update_precompiled_header target precompiled_header)
if (precompiled_header AND BUILD_WITH_PCH)
set_property(TARGET "${target}" APPEND PROPERTY "PRECOMPILE_HEADERS" "$<$<OR:$<COMPILE_LANGUAGE:CXX>,$<COMPILE_LANGUAGE:OBJCXX>>:${precompiled_header}>")
endif()
endfunction()
function(qt_update_precompiled_header_with_library target library)
if (TARGET "${library}")
get_target_property(TARGET_TYPE "${library}" TYPE)
if (NOT TARGET_TYPE STREQUAL "INTERFACE_LIBRARY")
get_target_property(HEADER "${library}" MODULE_HEADER)
qt_update_precompiled_header("${target}" "${HEADER}")
endif()
endif()
endfunction()
function(qt_update_ignore_pch_source target sources)
if (sources)
set_source_files_properties(${sources} PROPERTIES SKIP_PRECOMPILE_HEADERS ON)
endif()
endfunction()
function(qt_ignore_pch_obj_c_sources target sources)
# No obj-cxx PCH support for versions lower than 3.16.
if(CMAKE_VERSION VERSION_LESS 3.16.0)
list(FILTER sources INCLUDE REGEX "\\.mm$")
qt_update_ignore_pch_source("${target}" "${sources}")
endif()
endfunction()
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