diff --git a/Makefile b/Makefile
index 1ff1d54..c519a5e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,17 +1,24 @@
+NAME := aoc
+FMT := c
+
 CC := cc
-CC_OPTIONS := -g
+CC_OPTIONS := -g -Wall -Wextra
+DBG := gdb
 
 SRCD := src
 BIND := out
 
-SRCS := $(wildcard $(SRCD)/*)
-BIN := $(BIND)/aoc
+SRCS := $(wildcard $(SRCD)/*.$(FMT))
+BIN := $(BIND)/$(NAME)
 
 all: $(BIND) $(BIN)
 
 run: all
 	$(BIN)
 
+debug: all
+	$(DBG) $(BIN)
+
 $(BIND):
 	mkdir $@