Hello
When updating libraries from boost 1.32 to 1.33 our previous code that had no previous linking problems developed linking errors. I then attempted to compile the demo.cpp serialization code included in the boost documentation tutorial and received the same errors.
I attach below the code and the error message I got.
I am working on a Linux Gentoo machine with Boost installed by e-portage. I believe boost is properly installed as it works with other libraries.
Any suggestion?
Thanks
Ryan McKeown
Drexel University
Physics Dept.
==========================================
CODE
#include <fstream>
// include headers that implement a archive in simple text format
#include
#include
/////////////////////////////////////////////////////////////
// gps coordinate
//
// illustrates serialization for a simple type
//
class gps_position
{
private:
friend class boost::serialization::access;
// When the class Archive corresponds to an output archive, the
// & operator is defined similar to <<. Likewise, when the class Archive
// is a type of input archive the & operator is defined similar to >>.
template<class Archive>
void serialize(Archive & ar, const unsigned int version)
{
ar & degrees;
ar & minutes;
ar & seconds;
}
int degrees;
int minutes;
float seconds;
public:
gps_position(){};
gps_position(int d, int m, float s) :
degrees(d), minutes(m), seconds(s)
{}
};
int main() {
// create and open a character archive for output
std::ofstream ofs("filename");
// create class instance
const gps_position g(35, 59, 24.567f);
// save data to archive
{
boost::archive::text_oarchive oa(ofs);
// write class instance to archive
oa << g;
// archive and stream closed when destructors are called
}
// ... some time later restore the class instance to its orginal state
gps_position newg;
{
// create and open an archive for input
std::ifstream ifs("filename", std::ios::binary);
boost::archive::text_iarchive ia(ifs);
// read class state from archive
ia >> newg;
// archive and stream closed when destructors are called
}
return 0;
}
======================================
ERROR
/tmp/cchtRupV.o(.gnu.linkonce.t._ZN5boost7archive6detail15common_oarchiveINS0_13text_oarchiveEE4initEv+0x1a): In function `boost::archive::detail::common_oarchiveboost::archive::text_oarchive::init()':
: undefined reference to `boost::archive::ARCHIVE_SIGNATURE'
/tmp/cchtRupV.o(.gnu.linkonce.t._ZN5boost7archive6detail15common_oarchiveINS0_13text_oarchiveEE4initEv+0x84): In function `boost::archive::detail::common_oarchiveboost::archive::text_oarchive::init()':
: undefined reference to `boost::archive::ARCHIVE_VERSION'
/tmp/cchtRupV.o(.gnu.linkonce.t._ZN5boost7archive6detail15common_iarchiveINS0_13text_iarchiveEE4initEv+0x2f): In function `boost::archive::detail::common_iarchiveboost::archive::text_iarchive::init()':
: undefined reference to `boost::archive::ARCHIVE_SIGNATURE'
/tmp/cchtRupV.o(.gnu.linkonce.t._ZN5boost7archive6detail15common_iarchiveINS0_13text_iarchiveEE4initEv+0xd0): In function `boost::archive::detail::common_iarchiveboost::archive::text_iarchive::init()':
: undefined reference to `boost::archive::ARCHIVE_VERSION'
/tmp/cchtRupV.o(.gnu.linkonce.t._ZN5boost7archive6detail15common_oarchiveINS0_13text_oarchiveEEC2Ev+0xe): In function `boost::archive::detail::common_oarchiveboost::archive::text_oarchive::common_oarchive()':
: undefined reference to `boost::archive::detail::basic_oarchive::basic_oarchive()'
/tmp/cchtRupV.o(.gnu.linkonce.t._ZN5boost7archive6detail15common_iarchiveINS0_13text_iarchiveEEC2Ev+0xe): In function `boost::archive::detail::common_iarchiveboost::archive::text_iarchive::common_iarchive()':
: undefined reference to `boost::archive::detail::basic_iarchive::basic_iarchive()'
/tmp/cchtRupV.o(.gnu.linkonce.t._ZN5boost13serialization6detail27extended_type_info_typeid_0C2Ev+0x7): In function `boost::serialization::detail::extended_type_info_typeid_0::extended_type_info_typeid_0()':
: undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::type_info_key'
collect2: ld returned 1 exit status
