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# $NetBSD: depsrc-optional.mk,v 1.5 2020/11/08 10:33:47 rillig Exp $
#
# Tests for the special source .OPTIONAL in dependency declarations,
# which ignores the target if make cannot find out how to create it.
#
# TODO: Describe practical use cases for this feature.
all: important
: ${.TARGET} is made.
important: optional optional-cohort
: ${.TARGET} is made.
optional: .OPTIONAL
: An optional leaf node is not executed.
# See IsOODateRegular.
optional-cohort:: .OPTIONAL
: A leaf node using '::' is considered out-of-date.
.MAKEFLAGS: -dm
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