JRuby almost works!

[BadQuanta]

I'm trying to run JRuby under Wine. The default exe installer works fine in a 32bit environment. JRuby seems to be working really well so far, except when it comes to gem.

Doing a gem install fails with "Unkown Error (20047)". Now, this seems to be something JRuby has already had an issue with in the past with actual Win32 environments, however it is now considered fixed.

How to reproduce:
Debian 7 32-bit
wine, wine-bin, wine-doc, and winetricks packages installed.
JRuby installer (32bit exe) ran

Open a command prompt: "wine cmd"
Try installing any gem: "gem install bundler"

You'll see:

ERROR: While executing gem ... (SystemCallError)
Unknown error - Unknown Error (20047) - C:\users\badquanta\.gem

Any suggestions welcomed.