From 71051a384b98fc55eb494dc37f2eea89d0e6c106 Mon Sep 17 00:00:00 2001
From: Lucas Schwiderski <lucas@lschwiderski.de>
Date: Wed, 2 Jul 2025 16:18:25 +0200
Subject: [PATCH] luajit2-sys: Compile in parallel

---
 Cargo.toml               |  2 +-
 lib/luajit2-sys/build.rs | 13 +++++++------
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 15e26c6..608bcda 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ bincode = "2.0.0"
 bindgen = "0.70.1"
 bitflags = "2.5.0"
 byteorder = "1.4.3"
-cc = "1.2.27"
+cc = { version = "1.2.27", features = ["parallel"] }
 clap = { version = "4.0.15", features = ["color", "derive", "std", "cargo", "string", "unicode"] }
 cli-table = { version = "0.5.0", default-features = false, features = ["derive"] }
 color-eyre = { path = "lib/color-eyre" }
diff --git a/lib/luajit2-sys/build.rs b/lib/luajit2-sys/build.rs
index fc564db..ea6026b 100644
--- a/lib/luajit2-sys/build.rs
+++ b/lib/luajit2-sys/build.rs
@@ -82,6 +82,11 @@ const LUAJIT_SRC: [&str; 65] = [
 
 fn build_gcc(src_dir: &str) {
     let mut buildcmd = Command::new("make");
+    if let Ok(flags) = env::var("CARGO_MAKEFLAGS") {
+        buildcmd.env("MAKEFLAGS", flags);
+    } else {
+        buildcmd.arg("-j8");
+    }
     buildcmd.current_dir(src_dir);
     buildcmd.stderr(Stdio::inherit());
     buildcmd.arg("--no-silent");
@@ -102,14 +107,10 @@ fn build_gcc(src_dir: &str) {
 
     let mut child = buildcmd.spawn().expect("failed to run make");
 
-    if !child
+    child
         .wait()
         .map(|status| status.success())
-        .map_err(|_| false)
-        .unwrap_or(false)
-    {
-        panic!("Failed to build luajit");
-    }
+        .expect("Failed to build LuaJIT");
 }
 
 fn build_msvc(src_dir: &str, out_dir: &str) {