rust-lang / rust-lang/libc

Remove `flock` where not supported

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#4,723 2 comments 0 reactions 0 assignees View on GitHub

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C-bug E-help-wanted
Dominant language
Rust
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Description

The libc crate provides an flock symbol on all cfg(unix) targets except solaris. According to this list, that's not entirely right. In particular:

Emscripten, Redox, AIX, ESPIDF: no support, as far as I can tell

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the libc crate's flock declaration for cfg(unix) targets and compare its conditions with the linked platform list. Confirm support for Emscripten, Redox, AIX, and ESPIDF, then ensure unsupported targets no longer expose flock.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
operating-systems
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
52/100

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