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| author | Aidan Hobson Sayers <aidanhs@cantab.net> | 2017-01-15 22:33:58 +0000 |
|---|---|---|
| committer | Aidan Hobson Sayers <aidanhs@cantab.net> | 2017-01-16 03:06:45 +0000 |
| commit | 70d2372adaf48bb24f8b829417229149bd103e4a (patch) | |
| tree | 771726183f4b644dda75df603c7f2c5c710144b7 /src/libstd/lib.rs | |
| parent | b0c52c587fe9ba287053359fff5ed886b7edb27c (diff) | |
Expose a feature to force use of alloc_system, teach rustbuild
This fixes jemalloc-less local rebuilds, where we tell cargo that we're actually stage1
Diffstat (limited to 'src/libstd/lib.rs')
| -rw-r--r-- | src/libstd/lib.rs | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs index 521b938acfb..37632ac76f2 100644 --- a/src/libstd/lib.rs +++ b/src/libstd/lib.rs @@ -219,9 +219,10 @@ // Tell the compiler to link to either panic_abort or panic_unwind #![needs_panic_runtime] -// Always use alloc_system during stage0 since jemalloc might be unavailable or -// disabled (Issue #30592) -#![cfg_attr(stage0, feature(alloc_system))] +// 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`). +#![cfg_attr(any(stage0, feature = "force_alloc_system"), feature(alloc_system))] // Turn warnings into errors, but only after stage0, where it can be useful for // code to emit warnings during language transitions @@ -333,7 +334,7 @@ extern crate libc; // We always need an unwinder currently for backtraces extern crate unwind; -#[cfg(stage0)] +#[cfg(any(stage0, feature = "force_alloc_system"))] extern crate alloc_system; // compiler-rt intrinsics |