From fa07e1ca70ada4e0049d57429a84f3af536a4625 Mon Sep 17 00:00:00 2001
From: Han Mertens <hanmertens@outlook.com>
Date: Sat, 8 May 2021 12:41:37 +0200
Subject: [PATCH] cpuio: Use new feature flag for const functions

This is necessary since rust-lang/rust#84310, otherwise new nightlies
can't build cpuio.

Fixes #8.
---
 crates/cpuio/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/cpuio/src/lib.rs b/crates/cpuio/src/lib.rs
index 75bb62e..070b57a 100644
--- a/crates/cpuio/src/lib.rs
+++ b/crates/cpuio/src/lib.rs
@@ -1,7 +1,7 @@
 //! CPU-level input/output instructions, including `inb`, `outb`, etc., and
 //! a high level Rust wrapper.
 
-#![feature(llvm_asm, const_fn)]
+#![feature(llvm_asm, const_fn_trait_bound)]
 #![no_std]
 
 use core::marker::PhantomData;