am 39a6a644: merge from open-source master

Merge commit '39a6a64471b28032d2037d9472d58dc0a77ef313'

* commit '39a6a64471b28032d2037d9472d58dc0a77ef313':
  Create systemtarball either with bz2 or gz

tools/mktarball.sh

@@ -39,7 +39,14 @@ for f in ${subdirs} ${files} ; do
 done
 
 if [ $? -eq 0 ] ; then
-    bzip2 -c ${target_tar} > ${target_tarball}
+    case "${target_tarball}" in
+    *.bz2 )
+        bzip2 -c ${target_tar} > ${target_tarball}
+        ;;
+    *.gz )
+        gzip -c ${target_tar} > ${target_tarball}
+        ;;
+    esac
     success=$?
     [ $success -eq 0 ] || rm -f ${target_tarball}
     rm -f ${target_tar}