Boost C++ Libraries: Ticket #11862: timer.hpp, commented line 14 (// #include <boost/chrono/chrono.hpp>) causes link error in (at least) MSVC https://svn.boost.org/trac10/ticket/11862 <p> boost\timer\timer.hpp line 14 <em>#include &lt;boost/chrono/chrono.hpp&gt; causes unresolved externals uncommenting that line solves the issue </em></p> en-us Boost C++ Libraries /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/11862 Trac 1.4.3 aescande Fri, 27 May 2016 05:35:45 GMT <link>https://svn.boost.org/trac10/ticket/11862#comment:1 </link> <guid isPermaLink="false">https://svn.boost.org/trac10/ticket/11862#comment:1</guid> <description> <p> I confirm the problem: because this line is commented, the auto-link does not include the chrono library. In my case, the use of auto_cpu_timer gives an unresolved external symbol for boost::chrono::time_point </p> </description> <category>Ticket</category> </item> </channel> </rss>