libproxy is GO. I don't see any i18n issues.
I filed 6805148 for the base functions.
stdin of /usr/demo/jds/bin/proxy is available for the testing.
* libproxy: GO
Message I18N
============
* N/A: Messages for developers
Printing
========
* N/A
String
======
* N/A
File operation
==============
* N/A
Character set
=============
* N/A: ASCII only
Font
====
* N/A
Locale
======
* N/A: No dependencies on locales.
Key map
=======
* N/A
Short cut key
=============
* N/A
Input Method
============
* N/A
Image, Sound, Movie
===================
* N/A
Accessibility
=============
* N/A
CDE compatibility
=================
* N/A