build.rs: raise make error

1 files changed, 4 insertions, 0 deletions

diff --git a/build.rs b/build.rs
index 98d7c88..fa1bef2 100644
--- a/build.rs
+++ b/build.rs
@@ -22,4 +22,8 @@ fn main() {
         .output()
         .unwrap();
     std::io::stdout().write_all(&o.stdout).unwrap();
+    std::io::stderr().write_all(&o.stderr).unwrap();
+
+    // Ensure `make` was successfull.
+    assert!(o.status.success());
 }