Conditional broken line in recipe

Hi!

Is something like this possible?

target:
	foo \
ifeq (...)
	| bar \
endif
	| baz


I imagine I could get something similar, if I I used .ONESHELL:, but I
want to avoid it, as I'd need to redesign most of the rules.

.ONESHELL:
target:
	foo |
ifeq (...)
	bar |
endif
	baz


Do you have any better alternatives?

Thanks,
Alex

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