xen/build: fix xen/tools/binfile

xen/tools/binfile contains a bash specific command (let). This leads
to build failures on systems not using bash as /bin/sh.

Replace "let SHIFT=$OPTIND-1" by "SHIFT=$((OPTIND-1))".

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Tested-by: Andrew Cooper <andrew.cooper3@citrix.com>

diff --git a/xen/tools/binfile b/xen/tools/binfile
index df0301183fe6c0128c3e663d4eba20e87ab51b97..23099c49bf4d35bd623dcfae3ad125060a670f3a 100755 (executable)
--- a/xen/tools/binfile
+++ b/xen/tools/binfile
@@ -17,7 +17,7 @@ while getopts "ia:" opt; do
         ;;
     esac
 done
-let "SHIFT=$OPTIND-1"
+SHIFT=$((OPTIND-1))
 shift $SHIFT
 
 target=$1