From 711b3067dad5ebfb3558055756f47f04715ca27a Mon Sep 17 00:00:00 2001
From: Nicolas Stalder <n@stalder.io>
Date: Wed, 6 Jan 2021 12:14:26 +0100
Subject: [PATCH] Fail directly if TARGET were missing

---
 build.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/build.rs b/build.rs
index 2877b00..bf2bc7c 100644
--- a/build.rs
+++ b/build.rs
@@ -1,9 +1,9 @@
 use std::env;
 use std::path::PathBuf;
 
-fn main() {
+fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut builder = cc::Build::new();
-    let target = env::var("TARGET").unwrap_or("".to_string());
+    let target = env::var("TARGET")?;
     let builder = builder
         .flag("-std=c11")
         .flag("-DLFS_NO_MALLOC")
@@ -36,4 +36,6 @@ fn main() {
     bindings
         .write_to_file(out_path.join("bindings.rs"))
         .expect("Couldn't write bindings!");
+
+    Ok(())
 }