Use shlex to split command line

slapos/recipe/build.py

@@ -28,6 +28,7 @@ import logging
 import os
 from platform import uname
 import setuptools
+import shlex
 import shutil
 import subprocess
 import tempfile
@@ -86,7 +87,7 @@ def call(*args, **kwargs):
 
 def calls(call_string, **kwargs):
   """Subprocesser caller which allows to pass arguments as string"""
-  call(call_string.split(), **kwargs)
+  call(shlex.split(call_string), **kwargs)
 
 
 def guessworkdir(path):