Re: bug#67022: Gzip decompression can be 60% faster using zlib's CRC32

I tried to make that CRC-slice-by-8 happen but, as I miss something, maybe you will get that right.

My guess the problem lies in all those negations of crc (`(return) crc = crc ^ 0xffffffff;').

I prepared diff that does that, in more, less simple way. `crc32_8b...()' should be in util.c, and crc32.h should only contain lookup table generated by `sample/makecrc8.c', but until it works correctly it is in the header. Moving it to corret place is the least of the problem.

I put the diff in paste as it's bit big to attach to email.

~~~ bash

wget -Ogzip-1.13-crc328-2.diff https://paste.ee/d/mkqTU/0

cd gzip-1.13

patch -p1 ../gzip-1.13-crc328-2.diff

~~~

Hope that will help to make it happen.