Rewrite the Makefile to make it more reusable

1 files changed, 27 insertions, 5 deletions

diff --git a/Makefile b/Makefile
index fa5f19a..7c9868b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,31 @@
-CC = gcc
-CFLAGS = -Wall -W -std=c99 -g
 
-god_hands_solver: god_hands.o
+CC       ?= gcc
+CFLAGS   += -W -Wall -std=gnu99 -Wextra
+LDFLAGS  +=
+NAME      = god_hands_solver
+SRC       = god_hands.c
+
+all: depend $(NAME)
+
+depend: .depend
+
+.depend: $(SRC)
+	@$(RM) .depend
+	@$(CC) $(CFLAGS) -MM $^ > .depend
+
+include .depend
+
+OBJ     = $(SRC:.c=.o)
+
+$(NAME): $(OBJ)
 	$(CC) -o $@ $^ $(LDFLAGS)
 
-god_hands.o: god_hands.c
-	$(CC) -o $@ -c $< $(CFLAGS)
+clean:
+	$(RM) $(OBJ)
+
+fclean: clean
+	$(RM) $(NAME)
+
+re: fclean all
 
+.PHONY: all depend clean fclean all re