ksud: Fix macOS compile

userspace/ksud/src/restorecon.rs

@@ -2,9 +2,9 @@ use anyhow::Result;
 use jwalk::{Parallelism::Serial, WalkDir};
 use std::path::Path;
 
-#[cfg(unix)]
+#[cfg(target_os = "linux")]
 use anyhow::{Context, Ok};
-#[cfg(unix)]
+#[cfg(target_os = "linux")]
 use extattr::{setxattr, Flags as XattrFlags};
 
 const SYSTEM_CON: &str = "u:object_r:system_file:s0";
@@ -12,18 +12,18 @@ const _ADB_CON: &str = "u:object_r:adb_data_file:s0";
 const SELINUX_XATTR : &str = "security.selinux";
 
 pub fn setcon<P: AsRef<Path>>(path: P, con: &str) -> Result<()> {
-    #[cfg(unix)]
+    #[cfg(target_os = "linux")]
     setxattr(&path, SELINUX_XATTR, con, XattrFlags::empty())
         .with_context(|| format!("Failed to change SELinux context for {}", path.as_ref().display()))?;
     Ok(())
 }
 
-#[cfg(unix)]
+#[cfg(target_os = "linux")]
 pub fn setsyscon<P: AsRef<Path>>(path: P) -> Result<()> {
     setcon(path, SYSTEM_CON)
 }
 
-#[cfg(not(unix))]
+#[cfg(not(target_os = "linux"))]
 pub fn setsyscon<P: AsRef<Path>>(path: P) -> Result<()> {
     unimplemented!()
 }
@@ -31,7 +31,7 @@ pub fn setsyscon<P: AsRef<Path>>(path: P) -> Result<()> {
 pub fn restore_syscon<P: AsRef<Path>>(dir: P) -> Result<()> {
     for dir_entry in WalkDir::new(dir).parallelism(Serial) {
         if let Some(path) = dir_entry.ok().map(|dir_entry| dir_entry.path()) {
-            #[cfg(unix)]
+            #[cfg(target_os = "linux")]
             setxattr(&path, SELINUX_XATTR, SYSTEM_CON, XattrFlags::empty()).with_context(
                 || format!("Failed to change SELinux context for {}", path.display()),
             )?;