build_rpms: error out if we get nothing from get_rpm_dist.sh

diff --git a/build_rpms.sh b/build_rpms.sh
index c51e29ee012c21ca04fcc100959397a8ab84e18c..f706e8ce6adc794a2b97d1baf18a0e807f4aae00 100755 (executable)
--- a/build_rpms.sh
+++ b/build_rpms.sh
@@ -10,6 +10,8 @@ releasedir=$1
 cephver=$2
 
 dist=`$bindir/get_rpm_dist.sh`
+[ -z "$dist" ] && echo no dist && exit 1
+
 echo dist $dist
 
 [ -z "$releasedir" ] && echo specify releasedir && usage && exit 1