From 83d917e6443791b1bedf961da8a5ef01019a941b Mon Sep 17 00:00:00 2001
From: Eric Kinzie <eric@qosient.com>
Date: Sat, 16 Feb 2019 13:14:11 -0500
Subject: [PATCH] fix test for RTE_SDK variable in csh profile

In csh, undefined variables do not expand to the empty string.  Use the
$? csh substitution to check if the variable is defined.

Fixes: 4821395c6a5f ("- Avoid variable expansion in the spec here-documents during build")
---
 dpdk.spec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dpdk.spec b/dpdk.spec
index 02e70b3..8d7e35b 100644
--- a/dpdk.spec
+++ b/dpdk.spec
@@ -255,7 +255,7 @@ fi
 EOF
 
 cat << EOF > %{buildroot}/%{_sysconfdir}/profile.d/dpdk-sdk-%{_arch}.csh
-if ( ! \$RTE_SDK ) then
+if ( ! \$?RTE_SDK ) then
     setenv RTE_SDK "%{sdkdir}"
     setenv RTE_TARGET "%{target}"
     setenv RTE_INCLUDE "%{incdir}"