Merge pull request uutils#6677 from samueltardieu/change-detection

Do not rebuild the build script unless necessary

build.rs

@@ -15,6 +15,10 @@ pub fn main() {
     const FEATURE_PREFIX: &str = "feat_";
     const OVERRIDE_PREFIX: &str = "uu_";
 
+    // Do not rebuild build script unless the script itself or the enabled features are modified
+    // See <https://doc.rust-lang.org/cargo/reference/build-scripts.html#change-detection>
+    println!("cargo:rerun-if-changed=build.rs");
+
     if let Ok(profile) = env::var("PROFILE") {
         println!("cargo:rustc-cfg=build={profile:?}");
     }