msvcprt.lib(MSVCP80.dll) : error LNK2005: "public: __thiscall std::basic_string,class std::allocator >::~basic_string,class std::allocator >(void)" (??1?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@XZ) already defined in CategoriesCharts.obj
msvcprt.lib(MSVCP80.dll) : error LNK2005: "public: __thiscall std::basic_string,class std::allocator >::basic_string,class std::allocator >(char const *)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@PBD@Z) already defined in CategoriesCharts.obj
msvcprt.lib(MSVCP80.dll) : error LNK2005: "protected: char const * __thiscall std::basic_string,class std::allocator >::_Myptr(void)const " (?_Myptr@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@IBEPBDXZ) already defined in CategoriesCharts.obj
msvcprt.lib(MSVCP80.dll) : error LNK2005: "public: char const * __thiscall std::basic_string,class std::allocator >::c_str(void)const " (?c_str@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEPBDXZ) already defined in CategoriesCharts.obj
msvcprt.lib(MSVCP80.dll) : error LNK2005: "public: __thiscall std::basic_string,class std::allocator >::basic_string,class std::allocator >(class std::basic_string,class std::allocator > const &)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@ABV01@@Z) already defined in CategoriesCharts.obj
..\..\Bin\Release\LibraryBuilder\LibraryBuilder_.exe : fatal error LNK1169: one or more multiply defined symbols found

А что находиться в CategoriesCharts.h и CategoriesCharts.cpp?

#include <boost/shared_ptr.hpp>

#include <QStringList>
#include <QMap>

/// Перечисление всех типов возможных вкладок
enum TabType { T_TOPO = 0, T_MARINE, T_TOPOLIB, T_MRCLIB, T_AMMS, T_UNI };

/// Класс фабрики, загружающей любую категорию карт
template<typename key, class base> class factory
{
public:
    typedef boost::shared_ptr<base> base_ptr;

private:
    class base_type
    {
    public:
        virtual ~base_type() {}
        virtual base_ptr create() const = 0;
    };

    typedef boost::shared_ptr<base_type> base_type_ptr;

    template<class T> class derived_type: public base_type
    {
    public:
        virtual base_ptr create() const { return base_ptr(new T); }
    };

    typedef QMap<key, base_type_ptr> factory_container;

    factory_container factories;    ///< фабрика, хранящая категории карт

public:
    template<class derived> void register_factory(const key& key_name)
    { factories[key_name] = base_type_ptr(new derived_type<derived>); }
    base_ptr create(key key_name) { if(!factories.count(key_name)) throw std::out_of_range("Key not found");
                                    return factories[key_name] -> create(); }
    bool isEmpty() const { return factories.isEmpty(); }
};

Один маленький нюансик. Пока что мне никак не удается избавиться от файлов-dll студии. А жаль... Пока никак не удается. Они не очень напрягают, но хотелось бы убрать как-нибудь и их.

2>Linking...
2>ChartWidget.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __thiscall QVariant::QVariant(void)" (__imp_??0QVariant@@QAE@XZ)
2>ChartWidget.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: int __thiscall QWidget::height(void)const " (__imp_?height@QWidget@@QBEHXZ)
2>ChartWidget.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: int __thiscall QWidget::width(void)const " (__imp_?width@QWidget@@QBEHXZ)
2>ChartWidget.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: class QRect const & __thiscall QWidget::geometry(void)const " (__imp_?geometry@QWidget@@QBEABVQRect@@XZ)
2>ChartWidget.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: void __thiscall QWidget::setMouseTracking(bool)" (__imp_?setMouseTracking@QWidget@@QAEX_N@Z)
2>ChartWidget.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: void __thiscall QWidget::hide(void)" (__imp_?hide@QWidget@@QAEXXZ)
2>ChartWidget.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __thiscall QSize::QSize(void)" (__imp_??0QSize@@QAE@XZ)
2>Global.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: bool __thiscall QVariant::isValid(void)const " (__imp_?isValid@QVariant@@QBE_NXZ)
2>Global.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: class QString & __thiscall QString::remove(class QRegExp const &)" (__imp_?remove@QString@@QAEAAV1@ABVQRegExp@@@Z)
2>Global.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: int __thiscall QString::size(void)const " (__imp_?size@QString@@QBEHXZ)
2>InputData.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct QString::Data * & __thiscall QString::data_ptr(void)" (__imp_?data_ptr@QString@@QAEAAPAUData@1@XZ)
2>SearchIntersection.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) bool __cdecl operator!=(class QRect const &,class QRect const &)" (__imp_??9@YA_NABVQRect@@0@Z)
2>TabTopoView.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: static class QString __cdecl QFileDialog::getExistingDirectory(class QWidget *,class QString const &,class QString const &,class QFlags<enum QFileDialog::Option>)" (__imp_?getExistingDirectory@QFileDialog@@SA?AVQString@@PAVQWidget@@ABV2@1V?$QFlags@W4Option@QFileDialog@@@@@Z)
2>TabTopoView.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: static class QString __cdecl QFileDialog::getSaveFileName(class QWidget *,class QString const &,class QString const &,class QString const &,class QString *,class QFlags<enum QFileDialog::Option>)" (__imp_?getSaveFileName@QFileDialog@@SA?AVQString@@PAVQWidget@@ABV2@11PAV2@V?$QFlags@W4Option@QFileDialog@@@@@Z)
2>..\..\Bin\Release\LibraryBuilder\LibraryBuilder_.exe : fatal error LNK1120: 14 unresolved externals

#ifndef XMLREADER_H_055_099
#define XMLREADER_H_055_099

// all code


#endif //XMLREADER_H_055_099