| error: `default` is not followed by an item | 
 |   --> $DIR/default-unmatched-extern.rs:5:5 | 
 |    | | 
 | LL |     default do | 
 |    |     ^^^^^^^ the `default` qualifier | 
 |    | | 
 |    = note: only `fn`, `const`, `type`, or `impl` items may be prefixed by `default` | 
 |  | 
 | error: non-item in item list | 
 |   --> $DIR/default-unmatched-extern.rs:5:13 | 
 |    | | 
 | LL | extern "C" { | 
 |    |            - item list starts here | 
 | LL |     default!(); | 
 | LL |     default do | 
 |    |             ^^ non-item starts here | 
 | ... | 
 | LL | } | 
 |    | - item list ends here | 
 |  | 
 | error: cannot find macro `default` in this scope | 
 |   --> $DIR/default-unmatched-extern.rs:4:5 | 
 |    | | 
 | LL |     default!(); | 
 |    |     ^^^^^^^ | 
 |  | 
 | error: aborting due to 3 previous errors | 
 |  |