make: Graph cycles through ...

[Simon Gerraty <sjg%juniper.net@localhost>]

A trivial makefile (easily fixed - but that's beside the point):

--------------------8<--------------------
all: one

LIST = one two three four

two three four:
        @echo $@


one:  ${LIST}
        @echo all for $@ and $@ for all
--------------------8<--------------------

$ make -f /homes/sjg/make-tests/cycle1  
make: Graph cycles through one
two
three
four
`all' not remade because of errors.
$

By simply returning when the cycle is detected we get:

make: Graph cycles through one
two
three
four
all for one and one for all
$

which is similar to gmake:

gmake: Circular one <- one dependency dropped.
two
three
four
all for one and one for all
$