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-rw-r--r--library/rtstartup/rsbegin.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/library/rtstartup/rsbegin.rs b/library/rtstartup/rsbegin.rs
index 14bce2bbeee..9a3d95bd8dd 100644
--- a/library/rtstartup/rsbegin.rs
+++ b/library/rtstartup/rsbegin.rs
@@ -29,6 +29,8 @@ trait Copy {}
 #[lang = "freeze"]
 auto trait Freeze {}
 
+impl<T: ?Sized> Copy for *mut T {}
+
 #[lang = "drop_in_place"]
 #[inline]
 #[allow(unconditional_recursion)]