_____________________________________________
From: Leo Carreon [mailto:lcarreon@bigpond.net.au]
Sent: 12 July 2013 01:31
To: Boost Users Mailing List
Subject: Re: [Boost-users] Query on Boost.Log

From: Leo Carreon

Sent: Friday, July 12, 2013 8:42 AM

To: Boost Users Mailing List

Subject: Query on Boost.Log

Hi everyone,

I’m trying to learn how to use Boost.Log from Boost 1.54.0 on Fedora 18.

When I attempt to call boost::log::init_from_stream() even with BOOST_LOG_DYN_LINK defined, I get the error message”undefined reference to `void boost::log::v2_mt_posix::init_from_stream<char>(std::basic_istream<char, std::char_traits<char> >&)'” for the line where I called the function. Note that I have included the header file “boost/log/utility/setup/from_stream.hpp” and added –lboost_log to my link command line.

Am I missing something. I have noticed that boost::log::init_from_stream() is a template. Is an instance of this template added into the shared library?

Kind regards,
Leo

Hi again everyone,

FYI.

I built Boost 1.54.0 using the following bjam options – link=shared runtime-link=shared

I have also checked the build logs from the above and discovered that not all of the .cpp files in libs/log/src have been included during the build.

Kind regards,
Leo

Just a guess from having used quite a lot of Boost Log v1 before it was fully integrated into boost. I believe there is a separate library boost_log_setup - have you tried linking against that?

-Colin