From 6192bb78fbd0388e1626ce5163e4fe1064b07dc4 Mon Sep 17 00:00:00 2001
From: Christian Berendt <berendt@b1-systems.de>
Date: Tue, 30 Sep 2014 14:52:46 +0200
Subject: [PATCH] Use $((EXPRESSION)) instead of $[EXPRESSION]

$((EXPRESSION)) is POSIX-conform and should be preferred.

Change-Id: Ibd0524194aeda40961e202b6761dbaed2ea27dfa
---
 lib/common-functions | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/common-functions b/lib/common-functions
index 9189634c3..6bd1f9750 100644
--- a/lib/common-functions
+++ b/lib/common-functions
@@ -20,7 +20,7 @@ function tmpfs_check() {
   total_kB=$(awk '/^MemTotal/ { print $2 }' /proc/meminfo)
   # tmpfs uses by default 50% of the available RAM, so the RAM should be at least
   # the double of the minimum tmpfs size required
-  RAM_NEEDED=$[ $DIB_MIN_TMPFS * 2 ]
+  RAM_NEEDED=$(($DIB_MIN_TMPFS * 2))
   [ $total_kB -lt $(($RAM_NEEDED*1024*1024)) ] || return 0
   echo "Not enough RAM to use tmpfs for build. ($total_kB < ${RAM_NEEDED}G)"
   return 1