[rebase] Add feature(cfg_target_env)

src/liballoc/lib.rs

@@ -80,6 +80,7 @@
 #![feature(unsafe_no_drop_flag, filling_drop)]
 #![feature(core)]
 #![feature(unique)]
+#![feature(cfg_target_env)]
 #![cfg_attr(test, feature(test, alloc, rustc_private))]
 #![cfg_attr(all(not(feature = "external_funcs"), not(feature = "external_crate")),
             feature(libc))]

src/liblibc/lib.rs

@@ -14,6 +14,7 @@
 #![crate_type = "rlib"]
 #![cfg_attr(not(feature = "cargo-build"), unstable(feature = "libc"))]
 #![cfg_attr(not(feature = "cargo-build"), feature(staged_api, core, no_std))]
+#![cfg_attr(not(feature = "cargo-build"), feature(cfg_target_env))]
 #![cfg_attr(not(feature = "cargo-build"), staged_api)]
 #![cfg_attr(not(feature = "cargo-build"), no_std)]
 #![doc(html_logo_url = "http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",

src/libstd/lib.rs

@@ -129,6 +129,7 @@
 #![feature(slice_patterns)]
 #![feature(debug_builders)]
 #![feature(zero_one)]
+#![feature(cfg_target_env)]
 #![cfg_attr(test, feature(float_from_str_radix))]
 #![cfg_attr(test, feature(test, rustc_private, std_misc))]