On 5/22/06, H. Peter Anvin <[email protected]> wrote:
Alistair John Strachan wrote:
[snip]
> Seriously, though, if I understand gzip correctly, it uses deflate/zlib
> internally. Why, in that case, does /bin/gzip not (dynamically) link against
> libz? If a first step was fixing that, a second could be linking dynamically
> against libbz2 and 'liblzma', and making it all compile-time configurable.
>
Because gzip predates zlib...
Also because it runs faster than zlib on x86 due to register pressure.
Relocatable
code costs one register. x86 only has 7 that an algorithm can scribble over
(8 if it doesn't have any stack).
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