如何在 Ubuntu Linux 上安装共享库？
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How to install a shared library on Ubuntu Linux?
提问by user918545
I'm having trouble shared libraries on my Ubuntu 10.04. I expirienced it several times in the last months, read a lot about installing libs but I seem to miss the point.
我在 Ubuntu 10.04 上共享库时遇到问题。在过去的几个月里，我经历了几次，阅读了很多关于安装库的文章，但我似乎没有抓住重点。
Starting with the source code directory, I run the following commands:
从源代码目录开始，我运行以下命令：
make
Runs clean, without any errorsudo make install
Seems to be working fine, ends with: cp foo.so.0.1 /usr/local/lib/
rm -f /usr/local/lib/foo.so
ln -s /usr/local/lib/foo.so.0.1 /usr/local/lib/foo.sosudo ldconfig
Runs without any output
make
运行干净，没有任何错误sudo make install
似乎工作正常，结尾为： cp foo.so.0.1 /usr/local/lib/
rm -f /usr/local/lib/foo.so
ln -s /usr/local/lib/foo.so.0.1 /usr/local/lib/foo.sosudo ldconfig
运行没有任何输出
When writing a makefile, I can not address the lib by its name, but by its path:
Not working: -lfoo
Working: -L/usr/local/lib/foo.so
编写 makefile 时，我无法通过名称来寻址 lib，而是通过其路径：
不工作：-lfoo
工作：-L/usr/local/lib/foo.so
The problem stays the same, no matter what lib I try to install.
无论我尝试安装什么库，问题都保持不变。
What am I missing here? Or what can I do to find out?
我在这里缺少什么？或者我能做些什么来找出答案？
回答by nobsid
Is /usr/local/lib/in your library search path? If not you will need to specify both -lfooand /usr/local/lib/in your Makefile, so the linker knows where to look.
是否/usr/local/lib/在您的图书馆搜索路径中？如果不是，则需要在 Makefile 中同时指定-lfoo和/usr/local/lib/，以便链接器知道在哪里查找。
Whether or not /usr/local/lib/is in your library search path is dependent on your distribution.
是否/usr/local/lib/在您的库搜索路径中取决于您的发行版。
回答by Saurav Yadav
Remember that the library names should start with liband end with .so. Maybe you are missing the starting lib
请记住，库名称应以 开头lib和结尾.so。也许你错过了开始lib
