From 78152d31f3a1aff3c862dcd8eb4e88cfa2b295a4 Mon Sep 17 00:00:00 2001
From: Michal Sojka <sojkam1@fel.cvut.cz>
Date: Tue, 22 Jul 2014 09:21:26 +0200
Subject: [PATCH] Set $builddir to invocation dir if it is not specified by
 other means

This fixes undefined variable in --tftp handling when novaboot it run as

  novabot ... -- /dev/null
---
 novaboot | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/novaboot b/novaboot
index 4119409..0a88f69 100755
--- a/novaboot
+++ b/novaboot
@@ -740,6 +740,8 @@ $builddir ||= dirname(File::Spec->rel2abs( ${$scripts[0]}{filename})) if scalar
 if (defined $builddir) {
     chdir($builddir) or die "Can't change directory to $builddir: $!";
     print "novaboot: Entering directory `$builddir'\n";
+} else {
+    $builddir = $invocation_dir;
 }
 
 ## File generation phase
-- 
2.39.2