C++ IDE migration from VS 6 to VS 2013 - c++

Question

A C++ project can be compiled by VS6 without errors&warnings.
With VS 2013 Prof., linker problems are occuring. They are providing a pattern namely std::basic_string.
The code was written in 2007 but not by me.
Referenced by a constructor:
vrun.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) public: char const * __thiscall
std::basic_string,class
std::allocator >::c_str(void)const " (__imp_?c_str#?$basic_s
tring#DU?$char_traits#D#std##V?$allocator#D#2##std##QBEPBDXZ)
referenced in fun ction "public: __thiscall VTrs::VTrs(class
VMessageContext &)" (?? 0VDMTrs##QAE#AAVVDMMessageHandlerContext###Z)
In vrun.cpp:
VTrs::VTrs(VMessageContext& handler_):
Inherited(RXS::rName().c_str()),
_handler(handler_)
{
}
(c_str -> const char* c_str() const; --- C98 style --- C11 was not applied in the project till yet)
In vrun.h:
VTrs(VMessageContext&);
Referenced by an operator:
vrun.obj : error LNK2019: unresolved external symbol "__declspec(dllimport)
public: int __thiscall std::basic_string<char,struct std::char_traits<char>,cl
ass std::allocator<char> >::compare(char const *)const " (__imp_?compare#?$basi
c_string#DU?$char_traits#D#std##V?$allocator#D#2##std##QBEHPBD#Z) referenced in
function "bool __cdecl std::operator==<char,struct std::char_traits<char>,clas
s std::allocator<char> >(class std::basic_string<char,struct std::char_traits<c
har>,class std::allocator<char> > const &,char const *)" (??$?8DU?$char_traits#
D#std##V?$allocator#D#1##std##YA_NABV?$basic_string#DU?$char_traits#D#std##V?$a
llocator#D#2##0#PBD#Z)
Refers -as far as interpreted- to a standard operator. (No operator overloading done for == which refers to a string)
By the way, the code itself does not contain "std::basic_string".
The according msdn article was read but this issue was not resolved till yet.
'Usual' issues such as the "C" modifier modifications are already considered for another code.
Any hint how to cope with that?
EDIT: When opening the project the first time with Visual Studio 2013, a kind of conversion dialog was displayed. I agreed but it affected the VC++ Directories. It was visible when comparing the project file with ClearCase to the previous verison. UndoCheckout (via ClearCase) applied the old state. Now it works.

Answer 1

Your linker needs to get the newer MSVC std library from the relevant lib file and it should pick this up when you migrate the project. Take a look at Project Properties->Configuration Properties->Linker->Input and make sure "Ignore All Default Libraries" is set to No

Answer 2

When opening the project the first time with Visual Studio 2013, a kind of conversion dialog was displayed. I agreed but it affected the VC++ Directories. It was visible when comparing the project file with ClearCase to the previous version. UndoCheckout (via ClearCase) applied the old state. Now it works.