-#if defined(USING_EXCEPTIONS) && defined(HAVE_STL_STRING_FWD_H)
-// Hide the forward declaration of string by SGI's STL > 3.13. But only when
-// exceptions are in use.
-// Due to a clash with SGI's forward declaration of string we have to provide
-// __get_c_string() ourselves since SGI expects it to exist and block
-// their string declarations as best we can. ARRae.
-# define __SGI_STL_STRING_FWD_H
-static const char* __get_c_string(const string&);
-#endif // HAVE_STL_STRING_FWD_H