-/// Path separator.
-#ifdef __WXMSW__
-#define WXEXTHELP_SEPARATOR _T('\\')
-#elif defined(__WXMAC__)
-#define WXEXTHELP_SEPARATOR _T(':')
-#else
-#define WXEXTHELP_SEPARATOR _T('/')
-#endif
-
-class WXDLLEXPORT wxExtHelpMapList;
-
-#ifndef WXEXTHELP_DEFAULTBROWSER
-/// Default browser name.
-# define WXEXTHELP_DEFAULTBROWSER _T("netscape")
-/// Is default browse a variant of netscape?
-# define WXEXTHELP_DEFAULTBROWSER_IS_NETSCAPE TRUE
-#endif
-