From f5f7d47be1a5fd8488ed4cdc692173fe136d9791 Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@gmail.com>
Date: Sat, 19 Mar 2016 18:42:06 -0400
Subject: [PATCH] Support Bash "-u" mode
---
share/spack/setup-env.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/share/spack/setup-env.sh b/share/spack/setup-env.sh
index 586a5b836b..764af68400 100755
--- a/share/spack/setup-env.sh
+++ b/share/spack/setup-env.sh
@@ -141,7 +141,7 @@ function _spack_pathadd {
fi
# Do the actual prepending here.
- eval "_pa_oldvalue=\$${_pa_varname}"
+ eval "_pa_oldvalue=\${${_pa_varname}:-}"
if [ -d "$_pa_new_path" ] && [[ ":$_pa_oldvalue:" != *":$_pa_new_path:"* ]]; then
if [ -n "$_pa_oldvalue" ]; then
--
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