fix: detect unix target for stdbuf

Author: ShIroRRen

src/uu/stdbuf/build.rs

@@ -38,10 +38,14 @@ fn main() {
 
     let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap();
     let target_vendor = env::var("CARGO_CFG_TARGET_VENDOR").unwrap();
+    let target_family = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
 
+    if target_family != "unix" {
+        return;
+    }
     let dylib_ext = if target_vendor == "apple" {
         ".dylib"
-    } else if target_os == "windows" || target_os == "cygwin" {
+    } else if target_os == "cygwin" {
         ".dll"
     } else {
         ".so"

src/uu/stdbuf/locales/en-US.ftl

@@ -23,7 +23,6 @@ stdbuf-value-mode = MODE
 stdbuf-error-line-buffering-stdin-meaningless = line buffering stdin is meaningless
 stdbuf-error-invalid-mode = invalid mode {$error}
 stdbuf-error-value-too-large = invalid mode '{$value}': Value too large for defined data type
-stdbuf-error-command-not-supported = Command not supported for this operating system!
 stdbuf-error-external-libstdbuf-not-found = External libstdbuf not found at configured path: {$path}
 stdbuf-error-permission-denied = failed to execute process: Permission denied
 stdbuf-error-no-such-file = failed to execute process: No such file or directory

src/uu/stdbuf/locales/fr-FR.ftl

@@ -23,7 +23,6 @@ stdbuf-value-mode = MODE
 stdbuf-error-line-buffering-stdin-meaningless = la mise en mémoire tampon par ligne de stdin n'a pas de sens
 stdbuf-error-invalid-mode = mode invalide {$error}
 stdbuf-error-value-too-large = mode invalide '{$value}' : Valeur trop grande pour le type de données défini
-stdbuf-error-command-not-supported = Commande non prise en charge pour ce système d'exploitation !
 stdbuf-error-external-libstdbuf-not-found = libstdbuf externe introuvable au chemin configuré : {$path}
 stdbuf-error-permission-denied = échec de l'exécution du processus : Permission refusée
 stdbuf-error-no-such-file = échec de l'exécution du processus : Aucun fichier ou répertoire de ce type

src/uu/stdbuf/src/stdbuf.rs

@@ -5,6 +5,9 @@
 
 // spell-checker:ignore (ToDO) tempdir dyld dylib optgrps libstdbuf
 
+#[cfg(not(unix))]
+compile_error!("stdbuf is not supported on the target");
+
 use clap::{Arg, ArgAction, ArgMatches, Command};
 use std::ffi::OsString;
 #[cfg(unix)]
@@ -107,22 +110,6 @@ fn preload_strings() -> UResult<(&'static str, &'static str)> {
     Ok(("DYLD_LIBRARY_PATH", "dylib"))
 }
 
-#[cfg(not(any(
-    target_os = "linux",
-    target_os = "android",
-    target_os = "freebsd",
-    target_os = "netbsd",
-    target_os = "openbsd",
-    target_os = "dragonfly",
-    target_vendor = "apple"
-)))]
-fn preload_strings() -> UResult<(&'static str, &'static str)> {
-    Err(USimpleError::new(
-        1,
-        translate!("stdbuf-error-command-not-supported"),
-    ))
-}
-
 fn check_option(matches: &ArgMatches, name: &str) -> Result<BufferType, ProgramOptionsError> {
     match matches.get_one::<String>(name) {
         Some(value) => match value.as_str() {