From 29212ecdc9867fe90cca637374c1c73eb2e43e6b Mon Sep 17 00:00:00 2001
From: Michael Woerister <michaelwoerister@posteo.net>
Date: Tue, 4 Oct 2016 12:00:15 -0400
Subject: [PATCH] Assign internal linkage to autogenerated FnOnce::call_once()
 instances.

---
 src/librustc_trans/closure.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustc_trans/closure.rs b/src/librustc_trans/closure.rs
index c0692e8085fc..d506b47407d7 100644
--- a/src/librustc_trans/closure.rs
+++ b/src/librustc_trans/closure.rs
@@ -257,7 +257,7 @@ fn trans_fn_once_adapter_shim<'a, 'tcx>(
 
     // Create the by-value helper.
     let function_name = method_instance.symbol_name(ccx.shared());
-    let lloncefn = declare::declare_fn(ccx, &function_name, llonce_fn_ty);
+    let lloncefn = declare::define_internal_fn(ccx, &function_name, llonce_fn_ty);
     attributes::set_frame_pointer_elimination(ccx, lloncefn);
 
     let (block_arena, fcx): (TypedArena<_>, FunctionContext);