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omasanori opened this issue Apr 9, 2014 · 1 comment
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Build with --llvm-root=$DIR fails when Rust is already installed into $DIR #13421

omasanori opened this issue Apr 9, 2014 · 1 comment

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@omasanori
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I tried ./configure --llvm-root=/usr && make but it fails to build libstd. The error message is:

/home/omasanori/work/rust/src/libstd/lib.rs:74:1: 74:19 error: multiple dylib candidates for `libc` found
/home/omasanori/work/rust/src/libstd/lib.rs:74 extern crate libc;
                                               ^~~~~~~~~~~~~~~~~~
/home/omasanori/work/rust/src/libstd/lib.rs:74:1: 74:19 note: candidate #1: /usr/lib64/liblibc-3574b280-0.11-pre.so
/home/omasanori/work/rust/src/libstd/lib.rs:74 extern crate libc;
                                               ^~~~~~~~~~~~~~~~~~
/home/omasanori/work/rust/src/libstd/lib.rs:74:1: 74:19 note: candidate #2: /home/omasanori/work/rust/x86_64-unknown-linux-gnu/stage0/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-3574b280-0.11-pre.so
/home/omasanori/work/rust/src/libstd/lib.rs:74 extern crate libc;
                                               ^~~~~~~~~~~~~~~~~~
error: aborting due to previous error
@omasanori omasanori mentioned this issue Apr 11, 2014
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@japaric japaric mentioned this issue Jun 4, 2014
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@alexcrichton alexcrichton mentioned this issue Jun 5, 2014
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@jauhien jauhien mentioned this issue Aug 10, 2014
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@omasanori
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I've forgotten when it was fixed, but this error has disappeared. Can we close it?

bors added a commit to rust-lang-ci/rust that referenced this issue Oct 18, 2022
@bors
Auto merge of rust-lang#13421 - rust-lang:Veykril-patch-1, r=Veykril
8406380 
Update guide.md to reflect support for proc-macros
bors added a commit to rust-lang-ci/rust that referenced this issue Sep 24, 2024
@bors
Auto merge of rust-lang#13421 - lukaslueg:issue11212, r=Manishearth
9be28b1 
Initial impl of `unnecessary_first_then_check`

Fixes rust-lang#11212

Checks for `{slice/vec/Box<[]>}.first().is_some()` and suggests replacing the unnecessary `Option`-construct with a direct `{slice/...}.is_empty()`. Other lints guide constructs like `if let Some(_) = v.get(0)` into this, which end up as `!v.is_empty()`.

changelog: [`unnecessary_first_then_check`]: Initial implementation
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@steveklabnik @omasanori