.PHONY: all
all: build/parent-null build/parent-ptr build/child

build:
	@mkdir -p build

build/parent-null: build
	$(CC) -o build/parent-null src/parent.c

build/parent-ptr: build
	$(CC) -o build/parent-ptr -DPTR_TO_NULL src/parent.c

build/child: build
	$(CC) -o build/child src/child.c

.PHONY: test
test: all
	@echo "==> Testing execve with &NULL..."
	./build/parent-ptr ./build/child
	@echo "==> Testing execve with NULL..."
	./build/parent-null ./build/child

.PHONY: clean
clean:
	@rm -fr build