Embedded C++ 4 - Using STL Link failure

[JamesGordon]

Using MS Embedded C++ 4.
Adding <map> and <string> and then trying to write something like:

typedef std::map<std::string, int> jg

jg var;
var["James"] = 2;

I then get the following link error(s):

e4TestDlg.obj : error LNK2019: unresolved external symbol "public: __thiscall std::_Lockit::~_Lockit(void)" (??1_Lockit@std@@QAE@XZ) referenced in function "public: __thiscall std::_Tree<class std::basic_string<char,struct std::char_traits<char>,cla...

Any ideas what I need to do to fix this?

Regards,

James.