Restrict entity_rc to target_has_atomic.

Author: andriyDev

crates/bevy_ecs/src/lib.rs

@@ -32,6 +32,7 @@ pub mod change_detection;
 pub mod component;
 pub mod entity;
 pub mod entity_disabling;
+#[cfg(target_has_atomic = "ptr")]
 pub mod entity_rc;
 pub mod error;
 pub mod event;