I've Problem with wxCalendarCtrl

[zelsazgh]

i want to use wxCalendarCtrl,when i join it in my pane and complier it
the build message told me
D:\alphaapp\last\lastMain.cpp:79: undefined reference to `_imp___ZN14wxCalendarCtrlC1EP8wxWindowiRK10wxDateTimeRK7wxPointRK6wxSizelRK8wxString'
D:\alphaapp\last\lastMain.cpp:79: undefined reference to `_imp___ZN14wxCalendarCtrlC1EP8wxWindowiRK10wxDateTimeRK7wxPointRK6wxSizelRK8wxString'
:: === Build finished: 2 errors, 0 warnings ===

i use other  is no problem