编译tmux，要求安装libevent，下载编译，libevent默认安装到/usr/local/lib，但是执行tmux，找不到libevent的共享库。使用ldd发现找不到。
1 2 3 4 5 6 7 8 | $ ldd `which tmux` linux-vdso.so.1 => (0x00007fffbd38c000) libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f66c5641000) libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f66c5418000) libevent-2.1.so.6 => not found libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f66c51fd000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f66c4e33000) /lib64/ld-linux-x86-64.so.2 (0x00007f66c5844000) |
使用ldconfig添加路径
1 | $ sudo ldconfig /usr/local/lib |
根据文件系统体系标准，实际上应该安装到/lib。
Depending on library, ubuntu stores its libraries mainly in three locations
/lib
/usr/lib
/usr/local/lib
Following is from File System Hierarchy Standard
/lib
The /lib directory contains those shared library images needed to boot the system and run the commands in the root filesystem, ie. by binaries in /bin and /sbin.
/usr/lib
/usr/lib includes object files, libraries, and internal binaries that are not intended to be executed directly by users or shell scripts. [22]
Applications may use a single subdirectory under /usr/lib. If an application uses a subdirectory, all architecture-dependent data exclusively used by the application must be placed within that subdirectory.
/usr/local/lib
contains local libraries i.e one specific for this system but I can not find references to /usr/local/lib in FHS, it only contains explanation for /usr/local.
参考
https://unix.stackexchange.com/questions/67781/use-shared-libraries-in-usr-local-lib
https://askubuntu.com/questions/17545/where-does-ubuntu-store-its-library-files