makefile不更改输入文件名
我正在尝试制作一个C程序并具有以下makefile:
CC=clang
CFLAGS=-std=c99 -Wall -pedantic
LDFLAGS=
LDLIBS=
OUT=nes_slop
SRC_DIR=src/
OBJ_DIR=obj/
SRCS=$(wildcard $(SRC_DIR)*.c)
OBJS=$(addprefix $(OBJ_DIR),$(notdir $(SRCS:.c=.o)))
MAKE=make
CLEAR=TRUE
all: clean $(OUT)
clean:
rm -i $(OUT) $(OBJS) -f
$(OUT): $(OBJS)
$(CC) $(CFLAGS) $(OBJS) -o $(OUT)
$(OBJS): $(SRCS)
$(CC) -c $(CFLAGS) $(LDLIBS) $< -o $@
一切都很好,直到我拥有超过1个.c文件:
clang -c -std=c99 -Wall -pedantic -lncurses src/gamestate.c -o obj/gamestate.o
clang -c -std=c99 -Wall -pedantic -lncurses src/gamestate.c -o obj/main.o
因此,某种程度上没有更新源文件,它始终是gamestate.c < /code> ...我的makefile怎么了?感谢任何帮助,谢谢
I am trying to make a C program and have the following makefile:
CC=clang
CFLAGS=-std=c99 -Wall -pedantic
LDFLAGS=
LDLIBS=
OUT=nes_slop
SRC_DIR=src/
OBJ_DIR=obj/
SRCS=$(wildcard $(SRC_DIR)*.c)
OBJS=$(addprefix $(OBJ_DIR),$(notdir $(SRCS:.c=.o)))
MAKE=make
CLEAR=TRUE
all: clean $(OUT)
clean:
rm -i $(OUT) $(OBJS) -f
$(OUT): $(OBJS)
$(CC) $(CFLAGS) $(OBJS) -o $(OUT)
$(OBJS): $(SRCS)
$(CC) -c $(CFLAGS) $(LDLIBS) lt; -o $@
It was all well and good until I had more than 1 .c file:
clang -c -std=c99 -Wall -pedantic -lncurses src/gamestate.c -o obj/gamestate.o
clang -c -std=c99 -Wall -pedantic -lncurses src/gamestate.c -o obj/main.o
so, somehow the source file is not being updated, it's always gamestate.c
... what's wrong with my makefile? any help is appreciated, thank you
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简而言之,您的规则应该看起来像这样:
您可能还需要阅读 this 有关如何生成自动依赖关系(因此,如果更改标头文件,则C文件将根据需要自动重新生成),如果您不感兴趣,则该页面上有一个TL; DR部分在细节中。
In short, your rule should look something like this:
You may also want to read this for how to generate automatic dependencies (so if you change a header file, your c files will automatically regenerate as needed) There's a TL;DR section at the top of that page, if you're not interested in the details.