From 9456ff13c967405bda0615764d217864a27d9b23 Mon Sep 17 00:00:00 2001
From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
Date: Sun, 22 Sep 2024 19:02:30 +0000
Subject: [PATCH] Revert change to apply_patches to fix panic

---
 compiler/rustc_codegen_cranelift/build_system/prepare.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_codegen_cranelift/build_system/prepare.rs b/compiler/rustc_codegen_cranelift/build_system/prepare.rs
index b9cfcd99a77..30bd7ae26a1 100644
--- a/compiler/rustc_codegen_cranelift/build_system/prepare.rs
+++ b/compiler/rustc_codegen_cranelift/build_system/prepare.rs
@@ -203,7 +203,12 @@ pub(crate) fn apply_patches(dirs: &Dirs, crate_name: &str, source_dir: &Path, ta
     eprintln!("[COPY] {crate_name} source");
 
     ensure_empty_dir(target_dir);
-    copy_dir_recursively(source_dir, target_dir);
+    if crate_name == "stdlib" {
+        fs::create_dir(target_dir.join("library")).unwrap();
+        copy_dir_recursively(&source_dir.join("library"), &target_dir.join("library"));
+    } else {
+        copy_dir_recursively(source_dir, target_dir);
+    }
 
     init_git_repo(target_dir);