加载共享库时出错:libnsd。所以:不能打开共享对象文件:没有这样的文件或目录。

I'm writing two C programs. One of them uses library libnsd.so. I compile two C programs using makefile which looks like this:

我在写两个C程序。其中一个使用图书馆libnsd。我用makefile编译了两个C程序，它看起来是这样的:

CC=gcc
CFLAGS= -Wall -g -O -fPIC
RM= rm
HLAV=main
HLAVO=main.o


all:lib $(HLAV)
    cc c2.c -o c2


main: $(HLAVO)

    $(CC) -L. -o $(HLAV) $(HLAVO) -lnsd

lib: libnsd.so

libnsd.so: nsd.o nd.o
    $(CC) -shared $< -o $@



 nsd.o: nsd.c nsd.h nd.h

 nd.o: nd.c nsd.h nd.h



clean:
    $(RM) -rf *.o *.so main

When I try to run an aplication I get an error:

当我试着去做一个申请时，我犯了一个错误:

error while loading shared libraries: libnsd.so: cannot open shared object file: No such file or directory

加载共享库时出错:libnsd。所以:不能打开共享对象文件:没有这样的文件或目录。

Anyone knows how to solve it?

有人知道怎么解决吗?

1 个解决方案

#1

The error msg means your program can't find the dynamic library libnsd.so.

msg的错误意思是你的程序找不到动态库libnsd.so。

You need to find the library path from your system.
您需要从系统找到库路径。

If the lib is not on the regular path, I suggest put it on the regular path.

如果lib不在常规路径上，我建议把它放在常规路径上。

whereis libnsd.so

那儿离libnsd.so

mv your_dir/libnsd.so /usr/local/lib

mv your_dir / libnsd。所以/usr/local/lib

Note: If the library is does not exist on your system, you should install it first.

注意:如果您的系统上没有库，那么应该先安装它。

Then, use ldconfig to write the path in the config file:
然后，使用ldconfig在配置文件中写入路径:

sudo echo "/usr/local/lib" >> /etc/ld.so.conf
sudo ldconfig

Or if you don't have root priviledge in your workstation, you can simply change user environment path:

或者，如果您的工作站上没有根权限，您可以简单地更改用户环境路径:

export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

出口LD_LIBRARY_PATH = / usr /地方/ lib:LD_LIBRARY_PATH美元

#1