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Ignore ENOTSUP in file locking on Linux too #4116

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Jun 1, 2017
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Ignore ENOTSUP in file locking on Linux too #4116

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9 changes: 5 additions & 4 deletions src/cargo/util/flock.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -271,10 +271,11 @@ fn acquire(config: &Config,
match try() {
Ok(()) => return Ok(()),

// Like above, where we ignore file locking on NFS mounts on Linux, we
// do the same on OSX here. Note that ENOTSUP is an OSX_specific
// constant.
#[cfg(target_os = "macos")]
// In addition to ignoring NFS which is commonly not working we also
// just ignore locking on filesystems that look like they don't
// implement file locking. We detect that here via the return value of
// locking (e.g. inspecting errno).
#[cfg(unix)]
Err(ref e) if e.raw_os_error() == Some(libc::ENOTSUP) => return Ok(()),

#[cfg(target_os = "linux")]
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