From c23138bebf3d29a26ee7dab792aa500e874d9a25 Mon Sep 17 00:00:00 2001
From: Kolan Sh <backbone@backbone.ws>
Date: Sun, 10 Aug 2014 21:55:39 +0400
Subject: [PATCH] Don't run smart-live-rebuild if the command not present.

---
 sbin/gentoo-upgrade.sh | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sbin/gentoo-upgrade.sh b/sbin/gentoo-upgrade.sh
index d940ac1..c3c9c68 100755
--- a/sbin/gentoo-upgrade.sh
+++ b/sbin/gentoo-upgrade.sh
@@ -478,11 +478,13 @@ let STAGE_CNT++
 
 # Upgrading live packages
 if [ $STAGE_CNT -eq $STAGE ]; then
-        echo "======= STAGE $STAGE: Upgrading live packages ======="
-        smart-live-rebuild
-        [ 0 -ne $? ] && echo "Stage $STAGE: Upgrading live packages failed ;-( =======" && exit $STAGE
+	if [ `which smart-live-rebuild 2>/dev/null` ]; then
+		echo "======= STAGE $STAGE: Upgrading live packages ======="
+		smart-live-rebuild
+		[ 0 -ne $? ] && echo "Stage $STAGE: Upgrading live packages failed ;-( =======" && exit $STAGE
+	fi
 
-        let STAGE++
+	let STAGE++
 fi
 let STAGE_CNT++