使用makefile进行链接时出错:Ubuntu

时间:2013-07-01 09:50:55

标签: c linker makefile ubuntu-12.04 gnu-make

我有以下两个项目:

`/home/jagbirs/Downloads/sample/SampleExtLib1` containing: 

ext_lib1.c
ext_lib1.h
Makefile 

/home/jagbirs/Downloads/sample/SampleMakeTest包含:

main.c
Makefile

我正在学习如何链接外部库。 ext_lib1.h中有一个函数,我是

在main.c中使用但是在make之后我得到以下错误:

gcc -o main main.c -L/home/jagbirs/Downloads/sample/SampleExtLib1 -lext_lib1 
main.c:10:22: fatal error: ext_lib1.h: No such file or directory
compilation terminated.
make: *** [all] Error 1

两个makefile如下: SampleMakeTest /生成文件:

LIB = main
SRC := main.c
CFLAGS := -I../SampleExtLib1

all: $(SRC)
    gcc -o $(LIB) $(SRC) -L/home/jagbirs/Downloads/sample/SampleExtLib1 -lext_lib1 

clean: 
    rm -f *.o

SampleExtLib1 /生成文件:

all: ext_lib1.o
    ar r libext_lib1.a ext_lib1.o

clean: 
    rm -f *.o *.a

有些人可以帮我弄清楚为什么链接没有正常发生? 感谢

1 个答案:

答案 0 :(得分:0)

尝试添加-I以包含库的.h文件:

gcc -o $(LIB) $(SRC) -I/home/jagbirs/Downloads/sample/SampleExtLib1 -L/home/jagbirs/Downloads/sample/SampleExtLib1 -lext_lib1