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Hi,

I have recently upgraded to boost 1_46_1 and since then I am experience linking problems with the filesystem library.

I have performed a standard install using ./bootstrap.sh; bjam; bjam install under Ubuntu 10.04 with the default gcc (4.4.3). I can boil the problem down to this test program:

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

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

compiling this with

g++ test.cpp -lboost_system -lboost_filesystem

It might be as simple as the order you link to the libraries. The boost filesystem library depends on the boost system library, so you should

Max Moorkamp wrote: probably put "-lboost_system" after "-lboost_filesystem" on the command line to link your program. That was my first thought, but the linking error does not come from boost_system, plus all of

g++ test.cpp -lboost_filesystem -lboost_system g++ test.cpp -lboost_system -lboost_filesystem g++ test.cpp -lboost_filesystem give the same /tmp/cc9OO6P2.o: In function `boost::filesystem3::copy_file(boost::filesystem3::path const&, boost::filesystem3::path const&)': test.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::enum_t, boost::system::error_code*)' collect2: ld returned 1 exit status Regards Max -- Max Moorkamp IFM-GEOMAR Wischhofstr. 1-3 24148 Kiel Tel.: Germany - 431 - 600 2570 FAX.: Germany - 431 - 600 2915