chillitom chillitom - 1 month ago 6
C++ Question

Linking static libs built with VS2008 from a VS2012 project? Are they compatible?

I have a bunch of static .lib files including mysqlclient.lib, v8_base.lib and mysqlpp.lib that I link into my project, these were all built using Visual Studio 2008, they are built using the /MT runtime library option.

I've just tried upgrading to VS2012 and the code compiles fine but when the project get linked I get the following errors (over 500 errors in total):

Error 47 error LNK2019: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) referenced in function "public: void __thiscall std::ios_base::clear(int,bool)" (?clear@ios_base@std@@QAEXH_N@Z) D:\server\mysqlpp.lib(dbdriver.obj) server
Error 48 error LNK2001: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) D:\server\mysqlpp.lib(datetime.obj) server
Error 49 error LNK2001: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) D:\server\mysqlpp.lib(stadapter.obj) server
Error 50 error LNK2001: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) D:\server\mysqlpp.lib(sqlstream.obj) server
Error 51 error LNK2001: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) D:\server\mysqlpp.lib(connection.obj) server
Error 52 error LNK2001: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) D:\server\mysqlpp.lib(mystring.obj) server
Error 53 error LNK2001: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) D:\server\mysqlpp.lib(row.obj) server
Error 54 error LNK2001: unresolved external symbol "public: __thiscall std::_Mutex::~_Mutex(void)" (??1_Mutex@std@@QAE@XZ) D:\server\mysqlpp.lib(query.obj) server
Error 55 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(dbdriver.obj) server
Error 56 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(datetime.obj) server
Error 57 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(stadapter.obj) server
Error 58 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(sqlstream.obj) server
Error 59 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(connection.obj) server
Error 60 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(mystring.obj) server
Error 61 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(row.obj) server
Error 62 error LNK2001: unresolved external symbol "long const std::_BADOFF" (?_BADOFF@std@@3JB) D:\server\mysqlpp.lib(query.obj) server
Error 63 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(qparms.obj) server
Error 64 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(sqlstream.obj) server
Error 65 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(options.obj) server
Error 66 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(field_types.obj) server
Error 67 error LNK2019: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) referenced in function "public: char __thiscall mysqlpp::SQLTypeAdapter::at(unsigned int)const " (?at@SQLTypeAdapter@mysqlpp@@QBEDI@Z) D:\server\mysqlpp.lib(stadapter.obj) server
Error 68 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(manip.obj) server
Error 69 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(null.obj) server
Error 70 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(datetime.obj) server
Error 71 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(type_info.obj) server
Error 72 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(vallist.obj) server
Error 73 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(field_names.obj) server
Error 74 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(query.obj) server
Error 75 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(dbdriver.obj) server
Error 76 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(tcp_connection.obj) server
Error 77 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(uds_connection.obj) server
Error 78 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(connection.obj) server
Error 79 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(mystring.obj) server
Error 80 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(row.obj) server
Error 81 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xran(void)" (?_Xran@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(result.obj) server
Error 82 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(null.obj) server
Error 83 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(qparms.obj) server
Error 84 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(sqlstream.obj) server
Error 85 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(field_types.obj) server
Error 86 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(stadapter.obj) server
Error 87 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(manip.obj) server
Error 88 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(utility.obj) server
Error 89 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(datetime.obj) server
Error 90 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(type_info.obj) server
Error 91 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(vallist.obj) server
Error 92 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(field_names.obj) server
Error 93 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(query.obj) server
Error 94 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(dbdriver.obj) server
Error 95 error LNK2001: unresolved external symbol "public: static void __cdecl std::_String_base::_Xlen(void)" (?_Xlen@_String_base@std@@SAXXZ) D:\server\mysqlpp.lib(tcp_connection.obj) server


Do the runtime symbols defined by VS2012's standard libraries differ from those suplied with VS2008?

Answer

The issue you are seeing is due to differences in the STL and other libraries that come as part of C++. You can try the following linker switch:

/NODEFAULTLIB[:library]

when building it on the VS2008 side, if you cannot do that, though, you're out of luck. Basically what you'd have to do is to get rid of the standard libraries and thus delegate the task of resolving them to the linker that is later using the resulting static .lib.

I should add that you also need to make sure that you only use features that the recipient libraries know about.