42 lines
1.0 KiB
Makefile
42 lines
1.0 KiB
Makefile
# $NetBSD: depsrc-wait.mk,v 1.4 2022/05/07 17:49:47 rillig Exp $
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#
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# Tests for the special source .WAIT in dependency declarations,
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# which adds a sequence point between the nodes to its left and the nodes
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# to its right.
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all: .PHONY
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@${MAKE} -r -f ${MAKEFILE} x
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@${MAKE} -r -f ${MAKEFILE} three-by-three
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.if make(x)
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# Even though the build could run massively parallel, the .WAIT imposes a
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# strict ordering in this example, which forces the targets to be made in
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# exactly this order.
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.MAKEFLAGS: -j8
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# This is the example from the manual page.
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.PHONY: x a b b1
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x: a .WAIT b
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echo x
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a:
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echo a
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b: b1
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echo b
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b1:
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echo b1
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.endif
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# There are 3 groups of 3 targets, with .WAIT barriers in between. Each of
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# these groups has to be made completely before starting the next group.
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# See Makefile, POSTPROC for the postprocessing that takes place.
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.if make(three-by-three)
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.MAKEFLAGS: -j5
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.MAKE.MODE+= randomize-targets
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three-by-three: .WAIT 3a1 3a2 3a3 .WAIT 3b1 3b2 3b3 .WAIT 3c1 3c2 3c3 .WAIT
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3a1 3a2 3a3 3b1 3b2 3b3 3c1 3c2 3c3:
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: Making ${.TARGET}
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.endif
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