Hi,
When I have a Makefile rule
target: $(DEPS1) $(DEPS2)
command1
it is guaranteed that $(DEPS1) and $(DEPS2) will be done, including their
dependencies, before command1 is started.
However, with -j, $(DEPS1) and $(DEPS2) are being made in parallel. If this
is not desired, I can transform this rule to
target: $(DEPS1)
test -z "$(DEPS2)" || $(MAKE) $(DEPS2)
command1
or (equivalently?)
target: $(DEPS1)
$(MAKE) target2
target2: $(DEPS2)
command1
.PHONY: target2
The question is: Are these two rewrites really equivalent? If not, how
do they differ, and what is the best practice?
Bruno
