From c5031fafd052df98a93651fa93a0c4de382e40e9 Mon Sep 17 00:00:00 2001
From: Mike Arpaia <mike@arpaia.co>
Date: Thu, 22 Feb 2018 01:05:46 -0800
Subject: [PATCH] Unset CDPATH in build script to fix path generation

In https://github.com/kubernetes/kubernetes/issues/52255, it was
determined that if the user has a CDPATH, running `make` will fail. This
is because using the KUBE_ROOT variable results in invalid paths when
the CDPATH environment variable is set.
---
 hack/lib/init.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hack/lib/init.sh b/hack/lib/init.sh
index d141d168c71..5876d4234e3 100755
--- a/hack/lib/init.sh
+++ b/hack/lib/init.sh
@@ -18,6 +18,10 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
+# Unset CDPATH so that path interpolation can work correctly
+# https://github.com/kubernetes/kubernetes/issues/52255
+unset CDPATH
+
 # The root of the build/dist directory
 KUBE_ROOT="$(cd "$(dirname "${BASH_SOURCE}")/../.." && pwd -P)"