From f56206cac3e965350327240df4cb98ad1f4373af Mon Sep 17 00:00:00 2001
From: "Y. Sapir" <yasapir@gmail.com>
Date: Sun, 30 Mar 2014 14:34:00 +0300
Subject: [PATCH] Precache gcode_comments flag before path loop.

---
 lib/Slic3r/GCode.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Slic3r/GCode.pm b/lib/Slic3r/GCode.pm
index 1be05ffbe..d93117a86 100644
--- a/lib/Slic3r/GCode.pm
+++ b/lib/Slic3r/GCode.pm
@@ -340,6 +340,7 @@ sub extrude_path {
     
     # extrude arc or line
     $gcode .= ";_BRIDGE_FAN_START\n" if $path->is_bridge;
+    my $gcode_comments = $self->print_config->gcode_comments;
     my $path_length = 0;
     {
         my $local_F = $F;
@@ -362,7 +363,7 @@ sub extrude_path {
             $gcode .= " F$local_F"
                 if $local_F;
             $gcode .= " ; $description"
-                if $self->print_config->gcode_comments;
+                if $gcode_comments;
             $gcode .= "\n";
             
             # only include F in the first line