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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
# Defers the connection 'dependent' -> 'dependency'
#
# The actual connection can be made by calling qt_internal_add_deferred_dependencies.
#
function(qt_internal_defer_dependency dependent dependency)
set_property(GLOBAL APPEND PROPERTY QT_DEFERRED_DEPENDENCIES ${doc_target} ${tool_target})
endfunction()
# Adds dependencies between targets that have been deferred by calling qt_internal_defer_dependency.
#
# This function checks whether the connection can be made (the dependency target exists).
# If the connection cannot be made, the deferred connection is left in the global property.
# Potentially, some later call to qt_internal_add_deferred_dependencies will add it.
#
function(qt_internal_add_deferred_dependencies)
unset(unknown_deps)
get_property(deferred_deps GLOBAL PROPERTY QT_DEFERRED_DEPENDENCIES)
while(deferred_deps)
list(POP_FRONT deferred_deps dependent)
list(POP_FRONT deferred_deps dependency)
if (TARGET ${dependency})
add_dependencies(${dependent} ${dependency})
else()
list(APPEND unknown_deps ${dependent} ${dependency})
endif()
endwhile()
set_property(GLOBAL PROPERTY QT_DEFERRED_DEPENDENCIES ${unknown_deps})
endfunction()
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