.POSIX:

RUSTC ?= rustc
CC ?= cc

.PHONY: all
all: exercism fun

.PHONY: exercism
exercism: exercism-test protein 

fun: fun-test butt

.PHONY: build
build:
	mkdir -p build

.PHONY: clean
clean:
	rm -rf build

.PHONY: butt
butt: build/butt
build/butt: build fun/butt.rs
	$(RUSTC) $(RUSTFLAGS) -o $@ fun/butt.rs

.PHONY: protein
protein: build/protein
build/protein: build exercism/protein.rs
	$(RUSTC) $(RUSTFLAGS) -o $@ exercism/protein.rs

.PHONY: test
test: exercism-test fun-test

.PHONY: exercism-test
exercism-test: build /tmp/protein
/tmp/protein: exercism/protein.rs
	$(RUSTC) --test -o $@ exercism/protein.rs
	$@

.PHONY: fun-test
fun-test: