From 01bd9040f54aa05bff04df36f2c4c4e6a3460603 Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Thu, 18 Apr 2013 17:46:13 +0200
Subject: [PATCH] Fix syntax for ex_int_offset2()

---
 lib/Slic3r/Geometry/Clipper.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Slic3r/Geometry/Clipper.pm b/lib/Slic3r/Geometry/Clipper.pm
index bef2713da..0c2cbfe35 100644
--- a/lib/Slic3r/Geometry/Clipper.pm
+++ b/lib/Slic3r/Geometry/Clipper.pm
@@ -113,8 +113,8 @@ sub ex_int_offset2 {
 }
 
 sub collapse_ex {
-    my ($polygons, $width) = @_;
-    return ex_int_offset2($polygons, -$width/2, +$width/2);
+    my ($polygons, $width) = @_;use XXX; YYY 
+    return [ ex_int_offset2($polygons, -$width/2, +$width/2) ];
 }
 
 sub simplify_polygon {