Hello,
consider this Makefile:
.PHONY: phony
all: dir/foobar dir/foobar1
dir/%: phony
$(MAKE) -C $(@D) $(@F)
and then in the directory dir, the Makefile:
.PHONY: phony
foobar foobar1: prereq
touch $@
prereq: phony
touch $@
---------------------------------------------
>make all
causes the target "prereq" to be updated twice: make invoked recursively the
second time does not remember that the first invocation already updated that
target. If I do the same all in one directory and without recursive calls, the
target "prereq" is only updated once, as expected.
Is there a way to have it update only once in the above example situation?
Thank you,
Mark
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