error[E0080]: cannot access extern static `CLASS::VAL`
  --> $DIR/darwin-objc-bad-const.rs:11:32
   |
LL | pub const CLASS: objc::Class = objc::class!("NSObject");
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `CLASS` failed here
   |
   = note: this error originates in the macro `objc::class` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0080]: cannot access extern static `SELECTOR::VAL`
  --> $DIR/darwin-objc-bad-const.rs:14:33
   |
LL | pub const SELECTOR: objc::SEL = objc::selector!("alloc");
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `SELECTOR` failed here
   |
   = note: this error originates in the macro `objc::selector` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.