链接C ++失败[未定义的参考boost :: filesystem3 ...] [英] Failed at linking C++ [undefined reference boost::filesystem3 ... ]

问题描述

我在编译工作时遇到了一些麻烦，我在g++上使用Ubuntu.我收到很多这样的消息:

I'm having some trouble compiling my work, I'm using Ubuntu with g++. I get a lot of these messages:

undefined reference to `boost::filesystem3::directory_entry::m_get_status(boost::system::error_code*) const'
undefined reference to `boost::filesystem3::path::extension() const'
undefined reference to `boost::filesystem3::path::filename() const'
undefined reference to `boost::filesystem3::path::filename() const'

(等...)

我已经搜索并找到了很多答案，但是这些答案都不适合我.

I've searched and found many answers but none of those work for me.

-lboost_system (/usr/lib/gcc/i686-linux-gnu/4.4.5/../../../../lib/libboost_system.so)
-lboost_filesystem (/usr/lib/gcc/i686-linux-gnu/4.4.5/../../../../lib/libboost_filesystem.so)

链接时显示了这两个库，我猜该错误与第二个库有关.

When linking it shows those two libraries, I'm guessing the error is related to the second one.

hax@lap:~$ locate libboost_filesystem.so
/home/hax/boost_1_47_0/bin.v2/libs/filesystem/build/gcc-4.4.5/release/threading-multi/libboost_filesystem.so.1.47.0
/home/hax/boost_1_47_0/stage/lib/libboost_filesystem.so
/home/hax/boost_1_47_0/stage/lib/libboost_filesystem.so.1.47.0
/usr/lib/libboost_filesystem.so
/usr/lib/libboost_filesystem.so.1.42.0
/usr/local/lib/libboost_filesystem.so
/usr/local/lib/libboost_filesystem.so.1.47.0

这是我的生成文件上的相关行:

This is the related line on my makefile:

-L. -L../bncsutil/src/bncsutil/ -L../StormLib/stormlib/ -L../boost/lib/ -lbncsutil -lpthread -ldl -lz -lStorm -lmysqlclient_r -lboost_date_time -lboost_thread -lboost_system -lboost_filesystem  -Wl -t

我尝试用-L指向我看到filesystem.so的几个不同位置，但是它不起作用！

I tried pointing with -L several different places where I saw filesystem.so was located but it didn't work!

有人可以在这些行中看到问题吗?如果您需要我放入一些额外的数据，我会做的，我没看到问题:(

Can anyone see the problem in those lines? If you need me to put some extra data I'll do it, I'm not seeing the problem :(

推荐答案

它似乎试图链接到可能不包含这些符号的1.42.0版本.您可以删除1.42.0版本，运行ldconfig，然后再次尝试运气.

It almost looks like it's trying to link to the 1.42.0 version which may not contain those symbols. You could remove the 1.42.0 version, run ldconfig, and try your luck again.

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