Question

我在我的源代码中使用libevent，在编译程序之后，我运行它并得到以下错误：

./my_program: error while loading shared libraries: libevent-1.4.so.2: cannot open shared

之前我对如何安装libevent并安装类似libverto-libevent-0.2.5-1.fc16.x86_64.rpm的东西感到茫然。无论如何，最后我按./configure, make and make install编译并安装了libevent源代码，但它安装在/usr/lib中，而/usr/lib64被前面的残留.so文件占用，如下所示：

    [esolve@kity lib]$ ls /usr/lib64|grep "libevent"
    libevent-2.0.so.5
    libevent-2.0.so.5.0.1
    libevent_core-2.0.so.5
    libevent_core-2.0.so.5.0.1
    libevent_extra-2.0.so.5
    libevent_extra-2.0.so.5.0.1
    libevent_openssl-2.0.so.5
    libevent_openssl-2.0.so.5.0.1
    libevent_pthreads-2.0.so.5
    libevent_pthreads-2.0.so.5.0.1
    libeventviews.so.4
    libeventviews.so.4.8.0

    [esolve@kity lib]$ ls /usr/lib|grep "libevent"
    libevent-1.4.so.2
    libevent-1.4.so.2.2.0
    libevent.a
    libevent_core-1.4.so.2
    libevent_core-1.4.so.2.2.0
    libevent_core.a
    libevent_core.la
    libevent_core.so
    libevent_extra-1.4.so.2
    libevent_extra-1.4.so.2.2.0
    libevent_extra.a
    libevent_extra.la
    libevent_extra.so
    libevent.la
    libevent.so
    [esolve@kity lib]$

我能做什么才能成功运行./my_program？我的系统是fedora 16，我想链接到libevent-1.4.so 谢谢！

顺便说一句：

我试过rpm -e所有以前错误安装的rpm包，有一些“没有安装包”的提示，我得到了

    [esolve@kity lib]$ ls /usr/lib64|grep "libevent"
    lrwxrwxrwx    1 root root       21 Apr  3  2012 libevent-2.0.so.5 -> libevent-2.0.so.5.0.1
    -rwxr-xr-x    1 root root   280720 Feb  9  2011 libevent-2.0.so.5.0.1
    lrwxrwxrwx    1 root root       26 Apr  3  2012 libevent_core-2.0.so.5 -> libevent_core-2.0.so.5.0.1
    -rwxr-xr-x    1 root root   165760 Feb  9  2011 libevent_core-2.0.so.5.0.1
    lrwxrwxrwx    1 root root       27 Apr  3  2012 libevent_extra-2.0.so.5 -> libevent_extra-2.0.so.5.0.1
    -rwxr-xr-x    1 root root   127400 Feb  9  2011 libevent_extra-2.0.so.5.0.1
    lrwxrwxrwx    1 root root       29 Apr  3  2012 libevent_openssl-2.0.so.5 -> libevent_openssl-2.0.so.5.0.1
    -rwxr-xr-x    1 root root    21352 Feb  9  2011 libevent_openssl-2.0.so.5.0.1
    lrwxrwxrwx    1 root root       30 Apr  3  2012 libevent_pthreads-2.0.so.5 -> libevent_pthreads-2.0.so.5.0.1
    -rwxr-xr-x    1 root root     6992 Feb  9  2011 libevent_pthreads-2.0.so.5.0.1
    lrwxrwxrwx    1 root root       22 Jul 31  2012 libeventviews.so.4 -> libeventviews.so.4.8.0
    -rwxr-xr-x    1 root root   974656 Jul  9  2012 libeventviews.so.4.8.0

Answer 1

对于从源安装的库，您必须运行ldconfig，packagemanagers会为您执行此操作。但是，如果您从源代码构建库，则必须运行

./configure
make
make install

但也

ldconfig

并且make install和ldconfig都应以超级用户身份完成

man ldconfig

可以告诉你更多关于缓存和更新库的信息，然后我可以。

Answer 2

你不能删除libevent 2.0吗？

你可以在rpm方法中使用rpm -e。

或者，在Makefile中，您可以链接libevent-2.0而不是libevent-1.4。

加载共享库时出错，安装错误地放在/ usr / lib中的.so`文件中

2 个答案: