create hw2 and some commit

Makefile

@@ -4,9 +4,8 @@ CFLAGS := -Wall -g -std=c90
 LDFLAGS := -lm
 
 LIB_DIR := ./lib/nr/ansi
-LIB_INCLUDE := $(LIB_DIR)/other
-LIB_SRCS := $(LIB_DIR)/recipes/machar.c
-LIB_OBJS := $(patsubst %.c,$(BUILD_DIR)/lib/%.o,$(notdir $(LIB_SRCS)))
+LIB_INCLUDE := -I$(LIB_DIR)/other
+
 
 HW_DIR := ./hws
 
@@ -15,6 +14,15 @@ ifeq ($(strip $(hw)),)
 else
 	TARGET_NAME := hw$(hw)
 	SRC_DIR := $(HW_DIR)/hw$(hw)
+	ifeq ($(strip $(hw)),1)
+		LIB_SRCS := $(LIB_DIR)/recipes/machar.c
+	else ifeq ($(strip $(hw)),2)
+		LIB_SRCS := $(LIB_DIR)/other/nrutil.c $(LIB_DIR)/recipes/rtflsp.c $(LIB_DIR)/recipes/rtbis.c $(LIB_DIR)/recipes/rtsec.c $(LIB_DIR)/recipes/rtnewt.c $(LIB_DIR)/recipes/rtsafe.c $(LIB_DIR)/recipes/zbrak.c $(LIB_DIR)/recipes/bessj0.c $(LIB_DIR)/recipes/bessj1.c
+	else
+		LIB_SRCS := ""
+	endif
+	LIB_OBJS := $(patsubst %.c,$(BUILD_DIR)/lib/%.o,$(notdir $(LIB_SRCS)))
+
 endif
 
 ifeq ($(strip $(TARGET_NAME)),)
@@ -24,8 +32,10 @@ else
     TARGET_EXEC := $(BUILD_DIR)/$(TARGET_NAME).out
     TARGET_SRCS := $(wildcard $(SRC_DIR)/*.c)
     TARGET_OBJS := $(patsubst %.c,$(BUILD_DIR)/hw$(hw)/%.o,$(notdir $(TARGET_SRCS)))
+	TARGET_INCLUDE := -I$(SRC_DIR)
 	OBJS := $(TARGET_OBJS) $(LIB_OBJS)
 	SRCS := $(TARGET_SRCS) $(LIB_SRCS)
+	INCLUDE := $(TARGET_INCLUDE) $(LIB_INCLUDE)
 all: run
 endif
 
@@ -43,13 +53,13 @@ build: init $(TARGET_EXEC)
 
 $(TARGET_EXEC): $(OBJS)
 	@echo "링킹 중: $@"
-	$(CC) $(CFLAGS) $(LDFLAGS) $^ -o $@ 
+	$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS)
 
 $(OBJS): %.o:
 	@echo "컴파일 중: $@"
 	$(eval TARGET_C_BASENAME := $(patsubst %.o,%.c,$(notdir $@)))
 	$(eval FOUND_SRC := $(foreach src,$(SRCS),$(if $(filter $(TARGET_C_BASENAME),$(notdir $(src))),$(src))))
-	$(CC) $(CFLAGS) $(LDFLAGS) -I $(LIB_INCLUDE) -c $(FOUND_SRC) -o $@
+	$(CC) $(CFLAGS) $(INCLUDE) $(LDFLAGS) -c $(FOUND_SRC) -o $@ 
 
 run: clean build
 	@echo "실행 시작"
@@ -58,4 +68,4 @@ run: clean build
 
 dist:
 	mkdir -p out
-	zip -j -9 out/$(TARGET_NAME).zip $(TARGET_SRCS) 
+	zip -j -9 out/$(TARGET_NAME).zip $(TARGET_SRCS)