--- lxml-4.6.1/setupinfo.py.orig	2017-06-16 21:11:57.898800000 +0400
+++ lxml-4.6.1/setupinfo.py	2017-06-16 21:41:20.905000000 +0400
@@ -356,7 +356,7 @@
     if not cmd:
         return ''
     if args:
-        cmd = ' '.join((cmd,) + args)
+        cmd = 'sh -c "'+' '.join((cmd,) + args)+'"'
 
     p = subprocess.Popen(cmd, shell=True,
                          stdout=subprocess.PIPE, stderr=subprocess.PIPE)
