From 07bb5d2d94db222dca5860eb29c184e8970f36f4 Mon Sep 17 00:00:00 2001
From: Hunter Haugen <hunter@puppetlabs.com>
Date: Fri, 24 Jul 2015 11:50:03 -0700
Subject: [PATCH] check for eyaml_version being undef

Thanks to https://github.com/ktreese for reporting this.
---
 manifests/eyaml.pp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/manifests/eyaml.pp b/manifests/eyaml.pp
index 77d9552..a43bf54 100644
--- a/manifests/eyaml.pp
+++ b/manifests/eyaml.pp
@@ -35,7 +35,7 @@
     # that here
     #XXX Pre-puppet 4.0.0 version (PUP-1073)
     #BUG This can't actually update the gem version if already installed.
-    if $eyaml_version =~ /^\d+\.\d+\.\d+$/ {
+    if $eyaml_version and $eyaml_version =~ /^\d+\.\d+\.\d+$/ {
       $gem_flag = "--version ${eyaml_version}"
     } else {
       $gem_flag = undef