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Make a disable-jemalloc build work 

Fixes #43510
This commit is contained in:
Aidan Hobson Sayers 2017-08-01 15:37:10 +01:00
parent e8f558543b
commit 458ba7aeb5
1 changed files with 10 additions and 0 deletions
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10
src/libstd/lib.rs
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@ -318,6 +318,16 @@
#![default_lib_allocator]
// Always use alloc_system during stage0 since we don't know if the alloc_*
// crate the stage0 compiler will pick by default is available (most
// obviously, if the user has disabled jemalloc in `./configure`).
// `force_alloc_system` is *only* intended as a workaround for local rebuilds
// with a rustc without jemalloc.
#![cfg_attr(any(stage0, feature = "force_alloc_system"), feature(global_allocator))]
#[cfg(any(stage0, feature = "force_alloc_system"))]
#[global_allocator]
static ALLOC: alloc_system::System = alloc_system::System;
// Explicitly import the prelude. The compiler uses this same unstable attribute
// to import the prelude implicitly when building crates that depend on std.
#[prelude_import]