Patch for transparent decompression

[Reuben Thomas]

My patch to add transparent decompression, as per the TODO list, at:

https://savannah.gnu.org/patch/?6107

builds correctly against current CVS. Could someone review it? (Tony, you 
encouraged me to work on my patches six weeks ago, and then I think we were 
side-tracked by discussion of the build system). I'm keen to get this patch 
and a similar one to allow dynamic loading of PCRE into grep.

Note that the above patch is for code only; I'll write a documentation patch 
as soon as it's accepted. See the tracker for details, but basically this 
patch adds an --uncompress switch which uses libz to do transparent 
decompression.

--
http://rrt.sc3d.org/ | sad, a.  the efforts of musical debutantes (Bierce)