[boost] [Filesystem] problems with g++ -std=c++0x

Subject: [boost] [Filesystem] problems with g++ -std=c++0x
From: Roland Bock (rbock_at_[hidden])
Date: 2010-08-25 15:49:03

Hi,

getting my feet wet with variadic templates, I switched on c++0x support 
in gcc. Unfortunately, I am experiencing a linker error for the 
following minimal program:

------------------
#define BOOST_FILESYSTEM_VERSION 3
#define BOOST_FILESYSTEM_NO_DEPRECATED
#include <boost/filesystem.hpp>

int main()
{
    boost::filesystem::copy_file("a", "b");
}
------------------

rbock_at_rbock:~/temp/test$ g++ File.cpp -std=c++0x -I boost/1.44/include 
-L boost/1.44/lib -l boost_filesystem -l boost_system
/tmp/ccwkcQpq.o: In function 
`boost::filesystem3::copy_file(boost::filesystem3::path const&, 
boost::filesystem3::path const&)':
File.cpp:(.text._ZN5boost11filesystem39copy_fileERKNS0_4pathES3_[boost::filesystem3::copy_file(boost::filesystem3::path 
const&, boost::filesystem3::path const&)]+0x2a): undefined reference to 
`boost::filesystem3::detail::copy_file(boost::filesystem3::path const&, 
boost::filesystem3::path const&, boost::filesystem3::copy_option, 
boost::system::error_code*)'
collect2: ld returned 1 exit status

Experienced on Ubuntu-10.4, 64bit, gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3

Other boost libraries seem to work fine, other functions within 
Boost.Filesystem work fine, too.
When I rebuild boost with -std=c++0x, then the linking problem is gone, 
but I experience crashes in the boost::thread constructor :-(

Any ideas?

Thanks and regards,

Roland