From 47ed4738d927c5415956f5420e4d633917111398 Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Thu, 9 Nov 2017 00:20:55 +0100
Subject: [PATCH] fix core for targets with max-atomic-width = 0

closes #45802
---
 src/libcore/sync/atomic.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libcore/sync/atomic.rs b/src/libcore/sync/atomic.rs
index cd3dd9ce1399e..b7cf6d778a2f9 100644
--- a/src/libcore/sync/atomic.rs
+++ b/src/libcore/sync/atomic.rs
@@ -927,6 +927,7 @@ impl<T> AtomicPtr<T> {
     }
 }
 
+#[cfg(target_has_atomic = "ptr")]
 #[stable(feature = "atomic_from", since = "1.23.0")]
 impl<T> From<*mut T> for AtomicPtr<T> {
     #[inline]