Drop-in makefile for Cargo projects

Makefile.cargo

CARGO = cargo

CARGO_OPTS =

all:
	$(MAKE) build
	$(MAKE) doc

build:
	$(CARGO) $(CARGO_OPTS) build

clean:
	$(CARGO) $(CARGO_OPTS) clean

check:
	$(MAKE) build
	$(MAKE) test

test:
	$(CARGO) $(CARGO_OPTS) test

bench:
	$(CARGO) $(CARGO_OPTS) bench

doc:
	$(CARGO) $(CARGO_OPTS) doc

.PHONY: all build clean check test bench doc

Hi Mikhail!
First off: Thanks for the cargo Makefile! Very helpful!

Mind having a look at my modified version?

I'm wondering whether it is safe to turn the calls to $(MAKE) into dependences considering a potential make -j call. I suspect it is a good choice for make all, where one does not care about the order the two calls are executed. Could it be a problem for make check? I.e., could the test be run while the build is in progress?

Also is there a reason to have CARGO_OPTS?

I believe @NichtJens is correct, cargo obtains a lock to build a project, and so the parallelization will be lost. No harm done though, since they'll still execute, just out of order - and cargo has proper dependency resolution so they'll end up actually building in the correct order on that end.