Unicode compilation fix

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@18287 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/dynlib.cpp

@@ -146,7 +146,7 @@ wxLibrary::wxLibrary(wxDllType handle)
     m_handle = handle;
 
     // Some system may use a local heap for library.
-    get_first = (t_get_first)GetSymbol("wxGetClassFirst");
+    get_first = (t_get_first)GetSymbol(_T("wxGetClassFirst"));
     // It is a wxWindows DLL.
     if (get_first)
         PrepareClasses(get_first());