[tex-live] Problems with non-7bit characters in filename

[Akira Kakuto]

Dear Josef,

> At least TeXLive's texlua expects utf-8 and only utf-8 for command line 
> options, which is a problem on a standard Windows system.

Try
http://ctan.ijs.si/mirror/w32tex/current/luatex-dev-w32.tar.xz

( Copy only two files, lua52.dll and luatex.dll, in the bin
  directory into the bin/win32 directory in TeX Live )

set COMMAND_LINE_ENCODING=utf8
texlua -cmdx gmimage.lua ...

Note that -cmdx (or --cmdx) should be the first option.

Thanks,
Akira