---

yaml
---
r: 227643
b: refs/heads/master
c: 2979076
h: refs/heads/master
i:
  227641: 3103e4d
  227639: a68b95e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 43f901fbc8ba94bfa8d58155ba9378d7a13af636
+refs/heads/master: 2979076fbf17a0947d6eba367b0cac19c907c160

trunk/scripts/headers_install.pl

@@ -45,6 +45,13 @@
 	close $in;
 
 	system $unifdef . " $tmpfile > $installdir/$file";
+	# unifdef will exit 0 on success, and will exit 1 when the
+	# file was processed successfully but no changes were made,
+	# so abort only when it's higher than that.
+	my $e = $? >> 8;
+	if ($e > 1) {
+		die "$tmpfile: $!\n";
+	}
 	unlink $tmpfile;
 }
 exit 0;