How to import a diff from machine with different encoding

[Ulf Zibis]

Hi,

Machine A:
- default encoding: windows-1250
- source file encoding: ISO-8859-1
- hg export -> MyDiff.patch
Result:
- ISO-8859-1  for the diff content
- windows-1250  for the file paths

Machine B:
- default encoding: UTF-8
- source file encoding: ISO-8859-1

Machine B does not understand the windows-1250 encoded file paths in MyDiff.patch

hg import --encoding windows-1250 MyDiff.patch
... seems to affect only tags, comments and branch-names, but not file paths according 
http://www.selenic.com/mercurial/hg.1.html#environment-variables

What can I do to successfully import such patch or how encode the export on the windows-1250 machine 
as UTF-8 ?

Thanks,

-Ulf

P.S.: Please CC: to Ulf Zibis <Ulf.Zibis at CoSoCo.de>, as I'm not subscribed to the list.