fix(redox): move libc import under the correct conditional compilation

Author: abendrothj

src/uu/rm/src/platform/unix.rs

@@ -345,6 +345,7 @@ pub fn safe_remove_dir_recursive(
     }
 }
 
+#[cfg(not(target_os = "redox"))]
 pub fn safe_remove_dir_recursive_impl(path: &Path, dir_fd: &DirFd, options: &Options) -> bool {
     // Read directory entries using safe traversal
     let entries = match dir_fd.read_dir() {
@@ -432,3 +433,10 @@ pub fn safe_remove_dir_recursive_impl(path: &Path, dir_fd: &DirFd, options: &Opt
 
     error
 }
+
+#[cfg(target_os = "redox")]
+pub fn safe_remove_dir_recursive_impl(_path: &Path, _dir_fd: &DirFd, _options: &Options) -> bool {
+    // safe_traversal stat_at is not supported on Redox
+    // This shouldn't be called on Redox, but provide a stub for compilation
+    true // Return error
+}

src/uucore/src/lib/features/safe_traversal.rs

@@ -20,6 +20,8 @@ use std::os::unix::ffi::OsStrExt;
 use std::os::unix::io::{AsFd, AsRawFd, BorrowedFd, FromRawFd, OwnedFd, RawFd};
 use std::path::{Path, PathBuf};
 
+#[cfg(target_os = "redox")]
+use libc;
 #[cfg(not(target_os = "redox"))]
 use nix::dir::Dir;
 #[cfg(not(target_os = "redox"))]
@@ -30,8 +32,6 @@ use nix::libc;
 use nix::sys::stat::{FchmodatFlags, FileStat, Mode, fchmodat, fstatat};
 #[cfg(not(target_os = "redox"))]
 use nix::unistd::{Gid, Uid, UnlinkatFlags, fchown, fchownat, unlinkat};
-#[cfg(target_os = "redox")]
-use libc;
 use os_display::Quotable;
 
 use crate::translate;