2 files changed, 20 insertions, 5 deletions
diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
index d4dd3e546ec..c3ce66d5e3a 100644
--- a/src/bootstrap/src/core/build_steps/compile.rs
+++ b/src/bootstrap/src/core/build_steps/compile.rs
@@ -1820,12 +1820,14 @@ impl Step for Assemble {
                     &self_contained_lld_dir.join(exe(name, target_compiler.host)),
                 );
             }
+        }
 
-            // In addition to `rust-lld` also install `wasm-component-ld` when
-            // LLD is enabled. This is a relatively small binary that primarily
-            // delegates to the `rust-lld` binary for linking and then runs
-            // logic to create the final binary. This is used by the
-            // `wasm32-wasip2` target of Rust.
+        // In addition to `rust-lld` also install `wasm-component-ld` when
+        // LLD is enabled. This is a relatively small binary that primarily
+        // delegates to the `rust-lld` binary for linking and then runs
+        // logic to create the final binary. This is used by the
+        // `wasm32-wasip2` target of Rust.
+        if builder.build_wasm_component_ld() {
             let wasm_component_ld_exe =
                 builder.ensure(crate::core::build_steps::tool::WasmComponentLd {
                     compiler: build_compiler,
diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs
index a77c20067e6..d2910f8edc6 100644
--- a/src/bootstrap/src/lib.rs
+++ b/src/bootstrap/src/lib.rs
@@ -1414,6 +1414,19 @@ Executed at: {executed_at}"#,
         None
     }
 
+    /// Returns whether it's requested that `wasm-component-ld` is built as part
+    /// of the sysroot. This is done either with the `extended` key in
+    /// `config.toml` or with the `tools` set.
+    fn build_wasm_component_ld(&self) -> bool {
+        if self.config.extended {
+            return true;
+        }
+        match &self.config.tools {
+            Some(set) => set.contains("wasm-component-ld"),
+            None => false,
+        }
+    }
+
     /// Returns the root of the "rootfs" image that this target will be using,
     /// if one was configured.
     ///