Without trying immediately to give specific code for what is a large project, I am getting linker errors when trying to link a second shared library which depends on a first shared library that has linked successfully. The errors are:
xml_wgrammar.o:xml_wgrammar.cpp:(.rdata$_ZTVN5boost7archive21xml_archive_exceptionE[__ZTVN5boost7archive21xml_archive_exceptionE]+0x20): undefined reference to `virtual thunk to boost::archive::archive_exception::what() const' xml_wgrammar.o:xml_wgrammar.cpp:(.rdata$_ZTCN5boost7archive21xml_archive_exceptionE4_NS0_17archive_exceptionE[__ZTCN5boost7archive21xml_archive_exceptionE4_NS0_17archive_exceptionE]+0x38): undefined reference to `virtual thunk to boost::archive::archive_exception::what() const' collect2.exe: error: ld returned 1 exit status The xml_wgrammar.o file is being linked into the second shared library. The xml_wgrammar.cpp file includes xml_archive_exception.hpp. The xml_archive_exception.hpp includes and derives from archive_exception.hpp. Both xml_archive_exception and archive_exception have their implementation in the first shared library and have their necessary implementations exported. The implementation of archive_exception::what() is exported in the first shared library and is imported when seen by xml_wgrammar.cpp. What is so strange is that there is no call to archive_exception::what() in the preprocessed output of xml_wgrammar.cpp. Does anybody have any idea what might be going on here before I take the time to reduce this situation into a short enough fragment to show in a subsequent thread in this post ? ------------------------------------------------------------------------------ _______________________________________________ Mingw-w64-public mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
