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Add comment explaining when posix_spawn() can be supported.

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Bryan Drewery
2018-03-01 09:18:16 -08:00
parent 2e2d9260f9
commit ef73b3ae2e
1 changed files with 2 additions and 0 deletions
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src/libstd/sys/unix/process/process_unix.rs
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@@ -242,6 +242,8 @@ impl Command {
Ok(None) Ok(None)
} }
// Only support platforms for which posix_spawn() can return ENOENT
// directly.
#[cfg(any(target_os = "macos", target_os = "freebsd"))] #[cfg(any(target_os = "macos", target_os = "freebsd"))]
fn posix_spawn(&mut self, stdio: &ChildPipes, envp: Option<&CStringArray>) fn posix_spawn(&mut self, stdio: &ChildPipes, envp: Option<&CStringArray>)
-> io::Result<Option<Process>> -> io::Result<Option<Process>>