Trouble using boost, cannot open shared object file

Question

So I'm trying to compile and run a simple boost timer program

#include <iostream>
#include <boost/asio.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>


int main() {
    using namespace boost::asio;
    io_service io;
    deadline_timer t(io, boost::posix_time::seconds(5));
    t.wait();
    std::cout << "Hello World!" << std::endl;

    return 0;
}

The first thing I tried when compiling this program was to do

g++ -I /home/vagrant/boost_1_60_0 main.cpp

which gave me an error of

/tmp/cc8Ytqko.o: In function `__static_initialization_and_destruction_0(int, int)':
main.cpp:(.text+0xfc): undefined reference to `boost::system::generic_category()'
main.cpp:(.text+0x108): undefined reference to `boost::system::generic_category()'
main.cpp:(.text+0x114): undefined reference to `boost::system::system_category()'
/tmp/cc8Ytqko.o: In function `boost::system::error_code::error_code()':
main.cpp:(.text._ZN5boost6system10error_codeC2Ev[_ZN5boost6system10error_codeC5Ev]+0x17): undefined reference to `boost::system::system_category()'
/tmp/cc8Ytqko.o: In function `boost::asio::error::get_system_category()':
main.cpp:(.text._ZN5boost4asio5error19get_system_categoryEv[_ZN5boost4asio5error19get_system_categoryEv]+0x5): undefined reference to `boost::system::system_category()'
collect2: error: ld returned 1 exit status

So then I did some research and it seems I needed to build the boost_system binaries so I went to directory boost was located in and ran

./bootstrap.sh
./b2 --with-system

Then I compiled again

g++ -I /home/vagrant/boost_1_60_0 main.cpp -L/home/vagrant/boost_1_60_0/stage/lib/ -lboost_system

and this didn't give me any error but when I ran the executable

vagrant@vagrant-ubuntu-trusty-64:/vagrant$ ./a.out
./a.out: error while loading shared libraries: libboost_system.so.1.60.0: cannot open shared object file: No such file or directory

Don't really know what I need to do here

score 4 · Accepted Answer · edited May 23 '17 at 12:31

4

liibboost_system.so.1.60.0 cannot be found in the list of directories searched by the dynamic linker. The non-default shared-object location is not stored in the binary by default. The environment variable LD_LIBRARY_PATH can be used to add directories that will be searched before the standard locations:

LD_LIBRARY_PATH=/home/vagrant/boost_1_60_0/stage/lib/ ./a.out

This will only work for the current bash environment, and there are also ways to store the path in the executable so that the environment variable is not needed.

edited May 23 '17 at 12:31

Community

1
1

answered Mar 18 '16 at 18:34

Lee Clagett

281
1
5

what should be done if I want to statically link the libraries instead of using dynamic linking? – vicg Mar 18 '16 at 18:50
1

Add [link=static](http://www.boost.org/build/doc/html/bbv2/tutorial/linkage.html) to the boost build options, and then [specify the .a file directly](http://stackoverflow.com/questions/4156055/gcc-static-linking-only-some-libraries) instead of the `-l` command. – Lee Clagett Mar 18 '16 at 18:54

Trouble using boost, cannot open shared object file

1 Answers1