C++ 在C+中使用共享库的问题+；项目

我正在尝试更改MongoDB的源代码并使用外部库中的函数。我已经能够更改构建脚本（SCons文件），并强制编译器与我将要使用的库进行额外的链接。虽然在编译源代码和链接目标文件时我没有遇到任何问题，但在启动mongod时我遇到了一个奇怪的错误。以下是我收到的消息（在mongod进程终止之前）：

我可以通过将库的.so文件移动到/lib/x86_64-linux-gnu并将其重命名为.1来解决这个问题，这是mongod希望找到共享库的路径。我不知道这个问题的原因是什么，但是对于其他库，比如pthread，一切都很好。这个问题有什么具体的解决办法吗？换句话说，我应该怎么做才能使可执行程序使用正确的命名（而不是.1）在其他位置查找库文件

以下是LD_DEBUG=all mongod时的输出：

  4564: 
  4564: file=libpthread.so.0 [0];  needed by ./mongod [0]
  4564: find library=libpthread.so.0 [0]; searching
  4564:  search cache=/etc/ld.so.cache
  4564:   trying file=/lib/x86_64-linux-gnu/libpthread.so.0
  4564: 
  4564: file=libpthread.so.0 [0];  generating link map
  4564:   dynamic: 0x00007f6ddccb7d50  base: 0x00007f6ddcaa0000   size: 0x000000000021c448
  4564:     entry: 0x00007f6ddcaa6cf0  phdr: 0x00007f6ddcaa0040  phnum:                  9
  4564: 
  4564: 
  4564: file=.1 [0];  needed by ./mongod [0]
  4564: find library=.1 [0]; searching
  4564:  search cache=/etc/ld.so.cache
  4564:   trying file=/lib/x86_64-linux-gnu/.1
  4564:  search path=/lib/x86_64-linux-gnu/tls/x86_64:/lib/x86_64-linux-gnu/tls:/lib/x86_64-linux-gnu/x86_64:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu/tls/x86_64:/usr/lib/x86_64-linux-gnu/tls:/usr/lib/x86_64-linux-gnu/x86_64:/usr/lib/x86_64-linux-gnu:/lib/tls/x86_64:/lib/tls:/lib/x86_64:/lib:/usr/lib/tls/x86_64:/usr/lib/tls:/usr/lib/x86_64:/usr/lib        (system search path)
  4564:   trying file=/lib/x86_64-linux-gnu/tls/x86_64/.1
  4564:   trying file=/lib/x86_64-linux-gnu/tls/.1
  4564:   trying file=/lib/x86_64-linux-gnu/x86_64/.1
  4564:   trying file=/lib/x86_64-linux-gnu/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/tls/x86_64/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/tls/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/x86_64/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/.1
  4564:   trying file=/lib/tls/x86_64/.1
  4564:   trying file=/lib/tls/.1
  4564:   trying file=/lib/x86_64/.1
  4564:   trying file=/lib/.1
  4564:   trying file=/usr/lib/tls/x86_64/.1
  4564:   trying file=/usr/lib/tls/.1
  4564:   trying file=/usr/lib/x86_64/.1
  4564:   trying file=/usr/lib/.1
  4564: 
  ./mongod: error while loading shared libraries: .1: cannot open shared object file: No such file or directory

---

我不知怎么找到了解决我问题的办法。我想这可能对其他人也有帮助

基本上，当您使用make创建共享库时，应该定义.so文件名。这就是我的情况，我只是将它设置为一个适当的值，现在一切都正常了，至少我已经通过这样做修复了这个错误

在谷歌上查找，我发现，gcc的-soname选项就是这样设计的

  4564: 
  4564: file=libpthread.so.0 [0];  needed by ./mongod [0]
  4564: find library=libpthread.so.0 [0]; searching
  4564:  search cache=/etc/ld.so.cache
  4564:   trying file=/lib/x86_64-linux-gnu/libpthread.so.0
  4564: 
  4564: file=libpthread.so.0 [0];  generating link map
  4564:   dynamic: 0x00007f6ddccb7d50  base: 0x00007f6ddcaa0000   size: 0x000000000021c448
  4564:     entry: 0x00007f6ddcaa6cf0  phdr: 0x00007f6ddcaa0040  phnum:                  9
  4564: 
  4564: 
  4564: file=.1 [0];  needed by ./mongod [0]
  4564: find library=.1 [0]; searching
  4564:  search cache=/etc/ld.so.cache
  4564:   trying file=/lib/x86_64-linux-gnu/.1
  4564:  search path=/lib/x86_64-linux-gnu/tls/x86_64:/lib/x86_64-linux-gnu/tls:/lib/x86_64-linux-gnu/x86_64:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu/tls/x86_64:/usr/lib/x86_64-linux-gnu/tls:/usr/lib/x86_64-linux-gnu/x86_64:/usr/lib/x86_64-linux-gnu:/lib/tls/x86_64:/lib/tls:/lib/x86_64:/lib:/usr/lib/tls/x86_64:/usr/lib/tls:/usr/lib/x86_64:/usr/lib        (system search path)
  4564:   trying file=/lib/x86_64-linux-gnu/tls/x86_64/.1
  4564:   trying file=/lib/x86_64-linux-gnu/tls/.1
  4564:   trying file=/lib/x86_64-linux-gnu/x86_64/.1
  4564:   trying file=/lib/x86_64-linux-gnu/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/tls/x86_64/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/tls/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/x86_64/.1
  4564:   trying file=/usr/lib/x86_64-linux-gnu/.1
  4564:   trying file=/lib/tls/x86_64/.1
  4564:   trying file=/lib/tls/.1
  4564:   trying file=/lib/x86_64/.1
  4564:   trying file=/lib/.1
  4564:   trying file=/usr/lib/tls/x86_64/.1
  4564:   trying file=/usr/lib/tls/.1
  4564:   trying file=/usr/lib/x86_64/.1
  4564:   trying file=/usr/lib/.1
  4564: 
  ./mongod: error while loading shared libraries: .1: cannot open shared object file: No such file or directory