For any pigz users out there,

pigz version 2.1.6 is now available at http://zlib.net/pigz/ .  The 
changes from 2.1.5 are:

- Added pigz.spec to distribution for RPM systems [Brown]
- Avoid some compiler warnings
- Process symbolic links if piping to stdout [Hoffstätte]
- Decompress if executable named "gunzip" [Hoffstätte]
- Allow ".tgz" suffix [Chernookiy]
- Fix adler32 comparison on .zz files

pigz is a parallel implementation of gzip that compresses using threads 
in order to take the most advantage of multiple processors and cores.  
pigz has all the functionality of gzip (and then some).

Mark Adler