From 9e927ffaf961b54aa7fb46f7a711ad62252188af Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Sun, 23 Jun 2013 21:14:55 +0200
Subject: [PATCH] Reimplement SLIC3R_NO_AUTO

---
 Build.PL | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Build.PL b/Build.PL
index 77c10c5ae..c6fd4543e 100644
--- a/Build.PL
+++ b/Build.PL
@@ -69,8 +69,14 @@ EOF
 my %modules = (%prereqs, %recommends);
 foreach my $module (sort keys %modules) {
     my $version = $modules{$module};
-    system $cpanm, "$module~$version";
+    if ($ENV{SLIC3R_NO_AUTO}) {
+        print "Missing prerequisite $module $version\n"
+            if !eval "use $module $version; 1";
+    } else {
+        system $cpanm, "$module~$version";
+    }
 }
+exit if $ENV{SLIC3R_NO_AUTO};
 
 if (eval "use App::Prove; 1") {
     App::Prove->new->run;