--- synfig_prepare.py.orig	2017-02-17 16:58:50.000000000 +0100
+++ synfig_prepare.py	2017-02-17 16:57:37.000000000 +0100
@@ -128,6 +128,7 @@
         if not self.has_action:
             return
 
+        os.environ['LC_ALL'] = 'C' # pass this to the spawned Inkscape
         cmd = self.init_args + " " + self.command + "--verb=FileSave --verb=FileQuit"
         if bsubprocess:
             p = Popen('inkscape "%s" %s' % (filename, cmd), shell=True, stdout=PIPE, stderr=PIPE)