Only retain external static symbols across LTO

[rust.git] / src / libsyntax / lib.rs

diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs
index 795f4044f6eb1be35c1bb8b74a49093b813be9c9..d7d3e576a613d5fe9de131cf36624cc4b597b8dd 100644 (file)
--- a/src/libsyntax/lib.rs
+++ b/src/libsyntax/lib.rs
@@ -22,6 +22,7 @@
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
        html_root_url = "https://doc.rust-lang.org/nightly/",
        test(attr(deny(warnings))))]
+#![cfg_attr(not(stage0), deny(warnings))]
 
 #![feature(associated_consts)]
 #![feature(filling_drop)]