Problemas no arquivo setup.h do wxWidgets

Programação C e C++
#1

Pessoal, toda vez que eu vou compilar um projeto wxWidgets aparecem uma série de erros no arquivo setup.h, sendo estes:

1º - error: #error “This file should only be included when using Microsoft Visual C++”

#ifndef _MSC_VER
    #error "This file should only be included when using Microsoft Visual C++" //Erro
#endif

2º - error: pasting “/” and “vc_dll” does not give a valid preprocessing token & error: pasting “/” and “msw” does not give a valid preprocessing token

#ifdef wxSUFFIX
    #define wxSETUPH_PATH \
        wxCONCAT6(../../../lib/, wxLIB_SUBDIR, /, wxTOOLKIT_PREFIX, wxSUFFIX, /wx/setup.h)
#else // suffix is empty
    #define wxSETUPH_PATH \
        wxCONCAT5(../../../lib/, wxLIB_SUBDIR, /, wxTOOLKIT_PREFIX, /wx/setup.h) //Erro
#endif

3º - error: pasting “vc_dll” and “/” does not give a valid preprocessing token

#ifdef wxMSVC_VERSION
    #define wxCOMPILER_PREFIX wxCONCAT(vc, wxMSVC_VERSION)
#elif defined(wxMSVC_VERSION_AUTO)
    #if _MSC_VER == 1200
        #define wxCOMPILER_PREFIX vc60
    #elif _MSC_VER == 1300
        #define wxCOMPILER_PREFIX vc70
    #elif _MSC_VER == 1310
        #define wxCOMPILER_PREFIX vc71
    #elif _MSC_VER == 1400
        #define wxCOMPILER_PREFIX vc80
    #elif _MSC_VER == 1500
        #define wxCOMPILER_PREFIX vc90
    #elif _MSC_VER == 1600
        #define wxCOMPILER_PREFIX vc100
    #elif _MSC_VER == 1700
        #define wxCOMPILER_PREFIX vc110
    #elif _MSC_VER == 1800
        #define wxCOMPILER_PREFIX vc120
    #else
        #error "Unknown MSVC compiler version, please report to wx-dev."
    #endif
#else
    #define wxCOMPILER_PREFIX vc //Erro
#endif

4º - error: pasting “msw” and “/” does not give a valid preprocessing token

#ifndef wxTOOLKIT_PREFIX
    #if defined(__WXGTK__)
        #define wxTOOLKIT_PREFIX gtk2
    #else
        #define wxTOOLKIT_PREFIX msw //Erro
    #endif
#endif // wxTOOLKIT_PREFIX

5º - fatal error: …/…/…/lib/vc_dll /msw /wx/setup.h: No such file or directory

#include wxSETUPH_PATH_STR //Erro

Alguém sabe o que fazer?