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| author | Brad Gibson <b2b@humanenginuity.com> | 2018-05-06 07:56:53 -0700 |
|---|---|---|
| committer | Brad Gibson <b2b@humanenginuity.com> | 2018-05-06 07:56:53 -0700 |
| commit | 6a78c0a10f2e719117fe4bb929bfb38549acfeec (patch) | |
| tree | 0089dcdd34bfa5ba430ed33163264b147677be59 /src/libcore/lib.rs | |
| parent | e1d5509bf381d978a1894b6ba869c3b56dd3eeca (diff) | |
| parent | 6f721f54c6fb1de9cf00eb9d2d050f818c882871 (diff) | |
resolved conflict with upstream commit
Diffstat (limited to 'src/libcore/lib.rs')
| -rw-r--r-- | src/libcore/lib.rs | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs index 0e21a3327fd..54f35d17974 100644 --- a/src/libcore/lib.rs +++ b/src/libcore/lib.rs @@ -50,6 +50,15 @@ // Since libcore defines many fundamental lang items, all tests live in a // separate crate, libcoretest, to avoid bizarre issues. +// +// Here we explicitly #[cfg]-out this whole crate when testing. If we don't do +// this, both the generated test artifact and the linked libtest (which +// transitively includes libcore) will both define the same set of lang items, +// and this will cause the E0152 "duplicate lang item found" error. See +// discussion in #50466 for details. +// +// This cfg won't affect doc tests. +#![cfg(not(test))] #![stable(feature = "core", since = "1.6.0")] #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png", @@ -76,7 +85,6 @@ #![feature(doc_cfg)] #![feature(doc_spotlight)] #![feature(extern_types)] -#![feature(fn_must_use)] #![feature(fundamental)] #![feature(intrinsics)] #![feature(iterator_flatten)] @@ -103,6 +111,7 @@ #![feature(untagged_unions)] #![feature(unwind_attributes)] #![feature(doc_alias)] +#![feature(inclusive_range_methods)] #![cfg_attr(not(stage0), feature(mmx_target_feature))] #![cfg_attr(not(stage0), feature(tbm_target_feature))] @@ -114,6 +123,7 @@ #![cfg_attr(stage0, feature(target_feature))] #![cfg_attr(stage0, feature(cfg_target_feature))] +#![cfg_attr(stage0, feature(fn_must_use))] #[prelude_import] #[allow(unused)] |