1 files changed, 28 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_ssa/src/back/archive.rs b/compiler/rustc_codegen_ssa/src/back/archive.rs
index 1cb8d342381..53550b049db 100644
--- a/compiler/rustc_codegen_ssa/src/back/archive.rs
+++ b/compiler/rustc_codegen_ssa/src/back/archive.rs
@@ -51,10 +51,37 @@ pub trait ArchiveBuilder<'a> {
 
     fn build(self) -> bool;
 
+    fn sess(&self) -> &Session;
+
+    /// Creates a DLL Import Library <https://docs.microsoft.com/en-us/windows/win32/dlls/dynamic-link-library-creation#creating-an-import-library>.
+    /// and returns the path on disk to that import library.
+    /// This functions doesn't take `self` so that it can be called from
+    /// `linker_with_args`, which is specialized on `ArchiveBuilder` but
+    /// doesn't take or create an instance of that type.
+    fn create_dll_import_lib(
+        sess: &Session,
+        lib_name: &str,
+        dll_imports: &[DllImport],
+        tmpdir: &Path,
+    ) -> PathBuf;
+
+    /// Creates a DLL Import Library <https://docs.microsoft.com/en-us/windows/win32/dlls/dynamic-link-library-creation#creating-an-import-library>
+    /// and adds it to the current compilation's set of archives.
     fn inject_dll_import_lib(
         &mut self,
         lib_name: &str,
         dll_imports: &[DllImport],
         tmpdir: &MaybeTempDir,
-    );
+    ) {
+        let output_path =
+            Self::create_dll_import_lib(self.sess(), lib_name, dll_imports, tmpdir.as_ref());
+
+        self.add_archive(&output_path, |_| false).unwrap_or_else(|e| {
+            self.sess().fatal(&format!(
+                "failed to add native library {}: {}",
+                output_path.display(),
+                e
+            ));
+        });
+    }
 }