libzip and file attributes

[Martin Schobert <martin%weltregierung.de@localhost>]

Hello,

 I implemented some code that adds files into a zip archive.  
Afterwards I noticed that libzip does not preserve file attributes. In  
my case the executable bit was ignored. I checked this under Ubuntu  
(libzip 0.8.X) and OSX (libzip 0.9). Is it correct that file  
attributes are not preserved due to the implementation of libzip or is  
there something I missed? I found no hint in the documentation, but I  
noticed [1] and [2].
So my questions are: Is the file attribute persistency really missing?  
Is the flag that was added to the zip_stat structure [2] for file  
attribute storage or for another purpose? And does [2] indicate, that  
this will be implemented?
[1] http://pdb.finkproject.org/pdb/package.php/fuse-zip
[2] http://hg.nih.at/libzip/?cs=55a7992a900a


Regards,

 Martin