auto_load_expand_dir_vars (const char *string)
{
char *s = xstrdup (string);
- substitute_path_component (&s, "$datadir", gdb_datadir);
+ substitute_path_component (&s, "$datadir", gdb_datadir.c_str ());
substitute_path_component (&s, "$debugdir", debug_file_directory);
if (debug_auto_load && strcmp (s, string) != 0)