diff --git a/btn/c/.gitignore b/btn/c/.gitignore
index 86c5f69..f802e99 100644
--- a/btn/c/.gitignore
+++ b/btn/c/.gitignore
@@ -1,5 +1,7 @@
 btn
 btn.exe
-btn.o
 
-.dat
\ No newline at end of file
+*.o
+*.d
+
+.dat
diff --git a/btn/c/Makefile b/btn/c/Makefile
index 53dd418..36d2d13 100644
--- a/btn/c/Makefile
+++ b/btn/c/Makefile
@@ -1,15 +1,41 @@
-CC = gcc
-CCFLAGS = -O -Wall -W -pedantic
+## Variables ##
+TARGET := btn
 
-TARGET = btn
+CC := gcc
+CFLAGS := -O -Wall -W -pedantic
+CFLAGS += -g
+CFLAGS += -MMD -MP
+CPPFLAGS = \
+	-I $(DIR_LIB) \
+	-DPROGNAME='"$(TARGET)"'
 
-SOURCES = $(wildcard ./*.c)
-OBJECTS = $(patsubst %.c, %.o, $(SOURCES))
+SOURCES = $(wildcard *.c)
+LIB_SRCS = $(wildcard $(DIR_LIB)/*.c)
+OBJECTS = $(SOURCES:.c=.o)
+LIB_OBJS = $(notdir $(LIB_SRCS:.c=.o))
 
+DIR_LIB := ../../lib
+
+## Targets ##
+.PHONY: all clean
+
+## Default Goal ##
 all: $(TARGET)
 
-$(TARGET): $(OBJECTS)
-	$(CC) $(CCFLAGS) -o $@ $^
+## Build ##
+$(TARGET): $(OBJECTS) $(LIB_OBJS)
+	$(CC) $^ $(CFLAGS) -o $@
+
+$(OBJECTS): %.o: %.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+$(LIB_OBJS): %.o: $(DIR_LIB)/%.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+## Dependency ##
+-include $(OBJECTS:.o=.d)
+-include $(LIB_OBJS:.o=.d)
 
-%.o: %.c
-	$(CC) $(CCFLAGS) -c -o $@ $<
+## Tasks ##
+clean:
+	rm -f $(TARGET) *.o *.d
diff --git a/hd/c/.gitignore b/hd/c/.gitignore
index 82026ae..1310530 100644
--- a/hd/c/.gitignore
+++ b/hd/c/.gitignore
@@ -1,4 +1,7 @@
-tmp
 hd
 hd.exe
-hd.o
\ No newline at end of file
+
+*.o
+*.d
+
+tmp
diff --git a/hd/c/Makefile b/hd/c/Makefile
index 8dedf72..6605b13 100644
--- a/hd/c/Makefile
+++ b/hd/c/Makefile
@@ -1,15 +1,41 @@
-CC = gcc
-CCFLAGS = -O -Wall -W -pedantic
+## Variables ##
+TARGET := hd
 
-TARGET = hd
+CC := gcc
+CFLAGS := -O -Wall -W -pedantic
+CFLAGS += -g
+CFLAGS += -MMD -MP
+CPPFLAGS = \
+	-I $(DIR_LIB) \
+	-DPROGNAME='"$(TARGET)"'
 
-SOURCES = $(wildcard ./*.c)
-OBJECTS = $(patsubst %.c, %.o, $(SOURCES))
+SOURCES = $(wildcard *.c)
+LIB_SRCS = $(wildcard $(DIR_LIB)/*.c)
+OBJECTS = $(SOURCES:.c=.o)
+LIB_OBJS = $(notdir $(LIB_SRCS:.c=.o))
 
+DIR_LIB := ../../lib
+
+## Targets ##
+.PHONY: all clean
+
+## Default Goal ##
 all: $(TARGET)
 
-$(TARGET): $(OBJECTS)
-	$(CC) $(CCFLAGS) -o $@ $^
+## Build ##
+$(TARGET): $(OBJECTS) $(LIB_OBJS)
+	$(CC) $^ $(CFLAGS) -o $@
+
+$(OBJECTS): %.o: %.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+$(LIB_OBJS): %.o: $(DIR_LIB)/%.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+## Dependency ##
+-include $(OBJECTS:.o=.d)
+-include $(LIB_OBJS:.o=.d)
 
-%.o: %.c
-	$(CC) $(CCFLAGS) -c -o $@ $<
+## Tasks ##
+clean:
+	rm -f $(TARGET) *.o *.d
diff --git a/hhss/c/.gitignore b/hhss/c/.gitignore
index 6dfabfe..2c7bfbe 100644
--- a/hhss/c/.gitignore
+++ b/hhss/c/.gitignore
@@ -1,4 +1,5 @@
 hhss
 hhss.exe
+
 *.o
 *.d
diff --git a/nsy/c/.gitignore b/nsy/c/.gitignore
index 2103688..45879fb 100644
--- a/nsy/c/.gitignore
+++ b/nsy/c/.gitignore
@@ -1,5 +1,7 @@
 nsy
 nsy.exe
-nsy.o
 
-.dat
\ No newline at end of file
+*.o
+*.d
+
+.dat
diff --git a/nsy/c/Makefile b/nsy/c/Makefile
index 9deb712..52bf45b 100644
--- a/nsy/c/Makefile
+++ b/nsy/c/Makefile
@@ -1,15 +1,41 @@
-CC = gcc
-CCFLAGS = -O -Wall -W -pedantic
+## Variables ##
+TARGET := nsy
 
-TARGET = nsy
+CC := gcc
+CFLAGS := -O -Wall -W -pedantic
+CFLAGS += -g
+CFLAGS += -MMD -MP
+CPPFLAGS = \
+	-I $(DIR_LIB) \
+	-DPROGNAME='"$(TARGET)"'
 
-SOURCES = $(wildcard ./*.c)
-OBJECTS = $(patsubst %.c, %.o, $(SOURCES))
+SOURCES = $(wildcard *.c)
+LIB_SRCS = $(wildcard $(DIR_LIB)/*.c)
+OBJECTS = $(SOURCES:.c=.o)
+LIB_OBJS = $(notdir $(LIB_SRCS:.c=.o))
 
+DIR_LIB := ../../lib
+
+## Targets ##
+.PHONY: all clean
+
+## Default Goal ##
 all: $(TARGET)
 
-$(TARGET): $(OBJECTS)
-	$(CC) $(CCFLAGS) -o $@ $^
+## Build ##
+$(TARGET): $(OBJECTS) $(LIB_OBJS)
+	$(CC) $^ $(CFLAGS) -o $@
+
+$(OBJECTS): %.o: %.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+$(LIB_OBJS): %.o: $(DIR_LIB)/%.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+## Dependency ##
+-include $(OBJECTS:.o=.d)
+-include $(LIB_OBJS:.o=.d)
 
-%.o: %.c
-	$(CC) $(CCFLAGS) -c -o $@ $<
+## Tasks ##
+clean:
+	rm -f $(TARGET) *.o *.d
diff --git a/nsy2/c/.gitignore b/nsy2/c/.gitignore
index 4e44f2f..935da00 100644
--- a/nsy2/c/.gitignore
+++ b/nsy2/c/.gitignore
@@ -1,2 +1,5 @@
 nsy2
-nsy2.o
\ No newline at end of file
+nsy2.exe
+
+*.o
+*.d
diff --git a/nsy2/c/Makefile b/nsy2/c/Makefile
index acf9434..9c6b5f8 100644
--- a/nsy2/c/Makefile
+++ b/nsy2/c/Makefile
@@ -1,15 +1,41 @@
-CC = gcc
-CCFLAGS = -O -Wall -W -pedantic
+## Variables ##
+TARGET := nsy2
 
-TARGET = nsy2
+CC := gcc
+CFLAGS := -O -Wall -W -pedantic
+CFLAGS += -g
+CFLAGS += -MMD -MP
+CPPFLAGS = \
+	-I $(DIR_LIB) \
+	-DPROGNAME='"$(TARGET)"'
 
-SOURCES = $(wildcard ./*.c)
-OBJECTS = $(patsubst %.c, %.o, $(SOURCES))
+SOURCES = $(wildcard *.c)
+LIB_SRCS = $(wildcard $(DIR_LIB)/*.c)
+OBJECTS = $(SOURCES:.c=.o)
+LIB_OBJS = $(notdir $(LIB_SRCS:.c=.o))
 
+DIR_LIB := ../../lib
+
+## Targets ##
+.PHONY: all clean
+
+## Default Goal ##
 all: $(TARGET)
 
-$(TARGET): $(OBJECTS)
-	$(CC) $(CCFLAGS) -o $@ $^
+## Build ##
+$(TARGET): $(OBJECTS) $(LIB_OBJS)
+	$(CC) $^ $(CFLAGS) -o $@
+
+$(OBJECTS): %.o: %.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+$(LIB_OBJS): %.o: $(DIR_LIB)/%.c
+	$(CC) $< $(CPPFLAGS) $(CFLAGS) -c -o $@
+
+## Dependency ##
+-include $(OBJECTS:.o=.d)
+-include $(LIB_OBJS:.o=.d)
 
-%.o: %.c
-	$(CC) $(CCFLAGS) -c -o $@ $<
+## Tasks ##
+clean:
+	rm -f $(TARGET) *.o *.d
diff --git a/test/.gitignore b/test/.gitignore
index 5c369ed..6a0b763 100644
--- a/test/.gitignore
+++ b/test/.gitignore
@@ -1,3 +1,4 @@
 test
 test_maker
-test_maker.o
+
+*.o
diff --git a/yandere/c/.gitignore b/yandere/c/.gitignore
index 1f6c70d..4ae7d1e 100644
--- a/yandere/c/.gitignore
+++ b/yandere/c/.gitignore
@@ -1,4 +1,5 @@
 yandere
 yandere.exe
+
 *.o
 *.d