CC = cc
COMPILER_OPTIONS = -Wall
BIN_DIR = obj
BINARIES = $(BIN_DIR)/hello_greeter
MAIN = $(BIN_DIR)/hello_greeter
OBJ = $(BIN_DIR)/hello_greeter.o \
	$(BIN_DIR)/greeter.o

.PHONY: all
all: $(BINARIES)

.PHONY: clean
clean:
	rm -rf $(BIN_DIR)

.PHONY: test
test: all
	@$(MAIN)
	@$(MAIN) Thomas

$(BIN_DIR)/%.o: %.c *.h
	mkdir -p $(BIN_DIR)
	$(CC) $(COMPILER_OPTIONS) -o $@ -c $<

$(MAIN): $(OBJ)
	mkdir -p $(BIN_DIR)
	$(CC) $(COMPILER_OPTIONS) -o $@ $^