about summary refs log tree commit diff
path: root/src/libstd/lib.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/libstd/lib.rs')
-rw-r--r--src/libstd/lib.rs11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs
index d4b40b844fc..8f41bdf39e9 100644
--- a/src/libstd/lib.rs
+++ b/src/libstd/lib.rs
@@ -245,6 +245,7 @@
 #![feature(on_unimplemented)]
 #![feature(oom)]
 #![feature(optin_builtin_traits)]
+#![feature(panic_unwind)]
 #![feature(placement_in_syntax)]
 #![feature(rand)]
 #![feature(raw)]
@@ -283,6 +284,13 @@
 #![allow(unused_features)] // std may use features in a platform-specific way
 #![cfg_attr(not(stage0), deny(warnings))]
 
+// FIXME(stage0): after a snapshot, move needs_panic_runtime up above and remove
+//                this `extern crate` declaration and feature(panic_unwind)
+#![cfg_attr(not(stage0), needs_panic_runtime)]
+#![cfg_attr(not(stage0), feature(needs_panic_runtime))]
+#[cfg(stage0)]
+extern crate panic_unwind as __please_just_link_me_dont_reference_me;
+
 #[cfg(test)] extern crate test;
 
 // We want to reexport a few macros from core but libcore has already been
@@ -301,6 +309,9 @@ extern crate alloc;
 extern crate rustc_unicode;
 extern crate libc;
 
+// We always need an unwinder currently for backtraces
+extern crate unwind;
+
 #[cfg(stage0)]
 extern crate alloc_system;