On 07/25/2014 05:21 PM, Luca Nardelli wrote:

Helo to all, thanks a LOT for your great work!

I'm trying to use the x64 library for VS 2013 (12), but I have a lot of "unresolved errors" when I try to compile the *LibLas *library that uses boost.

For example I get this error:

*error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ)*

Could you maybe help me or give some hint?

The boost-users list or at a LibLas related forum is probably better place s to ask about this. But it seems you need to link with boost_system library. This is something your build system should set up. I see from https://github.com/libLAS/libLAS that the build of libLAS is cmake based, so if that is what you are using, you should see something like this: ... -- Searching for Boost 1.38+ - done -- Boost version: 1.56.0 -- Found the following Boost libraries: -- program_options -- thread -- system -- iostreams -- filesystem ... when you run cmake, if cmake find the boost libraries. The -- system line indicate that cmake found a compatible pre-built boost_system library. This is probably not working, as you need to tell cmake where it can find boost libraries. As you got to the linking stage, cmake did find the boost include path used when compiling. So I am guessing you downloaded boost source tree and did not build it using the correct command to b2, or you have installed boost for a different compiler version. See the getting started guide for http://www.boost.org/doc/libs/1_55_0/more/getting_started/windows.html#get-b... Alternatively, as comment in https://github.com/libLAS/libLAS/blob/master/CMakeLists.txt suggest, you may want to use the boost windows installers, these are now found at http://sourceforge.net/projects/boost/files/boost-binaries/1.55.0/ Note also the comment in boost 1.55 release notes http://www.boost.org/users/history/version_1_55_0.html about "Known Bugs with Visual Studio 2013/Visual C++ 12" The 1.56 release is expected soon, there is beta version available if you like to try it out http://www.boost.org/users/history/version_1_56_0.html -- Bjørn