[Bug other/64362] rtl.h:2168:13: error: use of enum 'reg_class' without previous declaration

[alp at rsu dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64362

--- Comment #1 from Alexander Pyhalov <alp at rsu dot ru> ---
Sorry, it seems to be illumos issue.