From a4ed5bfa3f2850395e38cab67b157d3e6ffa56f8 Mon Sep 17 00:00:00 2001
From: Gemingyang <mingyang_ge@163.com>
Date: Fri, 29 Nov 2024 01:33:42 +0000
Subject: [PATCH] 1

---
 openblas-build/src/build.rs | 24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/openblas-build/src/build.rs b/openblas-build/src/build.rs
index 9fc8634..bce0406 100644
--- a/openblas-build/src/build.rs
+++ b/openblas-build/src/build.rs
@@ -460,29 +460,9 @@ impl Configure {
 
         // Copy OpenBLAS sources from this crate to `out_dir`
         let root = openblas_root.as_ref();
-        for entry in WalkDir::new(root) {
-            let entry = entry.expect("Unknown IO error while walkdir");
-            let dest = out_dir.join(
-                entry
-                    .path()
-                    .strip_prefix(root)
-                    .expect("Directory entry is not under root"),
-            );
-            if dest.exists() {
-                // Do not overwrite
-                // Cache of previous build should be cleaned by `cargo clean`
-                continue;
-            }
-            if entry.file_type().is_dir() {
-                fs::create_dir(&dest)?;
-            }
-            if entry.file_type().is_file() {
-                fs::copy(entry.path(), &dest)?;
-            }
-        }
 
         match Command::new("make")
-            .current_dir(out_dir)
+            .current_dir(root)
             .args(["all", "BINARY=64"])
             .env_remove("TARGET")
             .check_call()
@@ -497,7 +477,7 @@ impl Configure {
         match Command::new("make")
             .arg("install")
             .arg(format!("PREFIX={}", out_dir.display()))
-            .current_dir(out_dir)
+            .current_dir(root)
             .env_remove("TARGET")
             .check_call()
         {