From ae677af0440037b28a69c6ca4ea90de821435b85 Mon Sep 17 00:00:00 2001
From: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Date: Thu, 16 Apr 2015 17:01:42 +0200
Subject: [PATCH] '0' is a not the same as undefined or empty value

Change-Id: Ie077fc273601607cba72099d650c6774f08240fb
---
 solenv/bin/modules/installer/control.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/solenv/bin/modules/installer/control.pm b/solenv/bin/modules/installer/control.pm
index 061cbcad7f53..fd84a3b56577 100644
--- a/solenv/bin/modules/installer/control.pm
+++ b/solenv/bin/modules/installer/control.pm
@@ -279,7 +279,7 @@ sub check_system_environment
 
     for my $key ( @environmentvariables )
     {
-        $variables{$key} = $ENV{$key} || "";
+        $variables{$key} = defined($ENV{$key}) ? $ENV{$key} : "";
 
         if ( $variables{$key} eq "" )
         {
-- 
2.11.4.GIT