From 4bc3153d49471238a40daddc68efef4af0e2a1a2 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Wed, 26 Feb 2014 09:17:55 -0500
Subject: lib/*.sh, lib/*/*.sh: Rewrite include guards.

This is one step toward adding `set -u` to opkhelper utilities.
---
(limited to 'lib/common.sh')

diff --git a/lib/common.sh b/lib/common.sh
index 73e0554..64d0602 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -17,8 +17,8 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-[ -n "${_OH_COMMON_SM}" ] && return 0
-_OH_COMMON_SM='true'
+[ "x${_OH_COMMON_SM+set}" = 'xset' ] && return 0
+_OH_COMMON_SM=1
 
 oh_init()
 {
--
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