From 428cd7867dfa393b2a10696b52d7a5450fdb050e Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Mon, 11 Mar 2013 12:47:27 +0100
Subject: [PATCH] Missing bit

---
 lib/Slic3r/ExtrusionLoop.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/Slic3r/ExtrusionLoop.pm b/lib/Slic3r/ExtrusionLoop.pm
index d84942448b..02f33c603b 100644
--- a/lib/Slic3r/ExtrusionLoop.pm
+++ b/lib/Slic3r/ExtrusionLoop.pm
@@ -35,6 +35,9 @@ sub pack {
     return $o;
 }
 
+# no-op
+sub unpack { $_[0] }
+
 sub split_at_index {
     my $self = shift;