I have isolated the issue. Following code, compiled as a shared library, fails to compile on MinGW (and does on MSVC):


#include <boost/archive/text_oarchive.hpp>

struct Test 
{
template<class Archive> void serialize(Archive& ar, const unsigned int) { ar & a; }
void SerializeToFile(std::ostream& ostream) const
{
boost::archive::text_oarchive myar(ostream);
myar & boost::serialization::make_nvp("test",this);
}
double a;
};


It fails with

mingw32-make[1]: Entering directory `C:/Flam/Local/Sourcefiles/Cpp/Trunk/build'
cygwin warning:
  MS-DOS style path detected: C:\Flam\Local\Sourcefiles\Cpp\Trunk\build\Test.txt
  Preferred POSIX equivalent is: /cygdrive/c/Flam/Local/Sourcefiles/Cpp/Trunk/build/Test.txt
  CYGWIN environment variable option "nodosfilewarning" turns off this warning.
  Consult the user's guide for more details about POSIX paths:
    http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
g++ -shared -fPIC -o RDebug/Test.dll @"C:\Flam\Local\Sourcefiles\Cpp\Trunk\build\Test.txt" -L. -L/Sys/boost/MinGW32/boost_1_50_0/lib  -lboost_serialization-mgw46-mt-d-1_50  -shared
obj/RDebug/Test/Trunk_Test.o: In function `ZN5boost7archive21basic_text_oprimitiveISoE4saveEd':
/Sys/boost/MinGW32/boost_1_50_0/include/boost-1_50/boost/archive/basic_text_oprimitive.hpp:140: undefined reference to `boost::archive::archive_exception::archive_exception(boost::archive::archive_exception::exception_code, char const*, char const*)'
collect2: ld returned 1 exit status
mingw32-make[1]: *** [RDebug/Test.dll] Error 1
Test.mk:71: recipe for target `RDebug/Test.dll' failed
mingw32-make[1]: Leaving directory `C:/Flam/Local/Sourcefiles/Cpp/Trunk/build'
mingw32-make.exe: *** [All] Error 2
MultiLiveEnv_wsp.mk:4: recipe for target `All' failed

Any ideas? Can someone link this with MinGW? Thanks!