From d1d4ea370080589ef7b6d891fdf70d433485187c Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Sun, 18 Aug 2013 11:58:23 -0400
Subject: lib/*.sh, lib/*/*.sh: Rewrite include guards.

This is one step toward adding `set -u` to opkbuild.
---
(limited to 'lib/output.sh')

diff --git a/lib/output.sh b/lib/output.sh
index 5d60d3d..b718824 100644
--- a/lib/output.sh
+++ b/lib/output.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 "${_OB_MESSAGES_SH}" ] && return 0
-_OB_MESSAGES_SH=true
+[ x"${_OB_OUTPUT_SM+set}" = x'set' ] && return 0
+_OB_OUTPUT_SM=1
 
 ob_use locale
 
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