On Cygwin
/bin/zdiff 1.3.12 still is not correct. Line 107 reads
eval "$cmp" /dev/fd/5 -) 5<&0
whereas it probably should read something like
eval "$cmp" /dev/fd/5 - >&3) 5<&0
I looked at source zdiff.in in gzip-1.312 and on line 107 it has
eval "$cmp" /dev/fd/5 -) 5<&0
I use my own /usr/local/bin/zdiff with line 107 having
eval "$cmp" /dev/fd/5 - >&3) 5<&0
For example, I created zdiff_mod.in from zdiff.in the gzip-1.3.12 source:
14:05:01 @lester:~% diff zdiff.in zdiff_mod.in
107c107
< eval "$cmp" /dev/fd/5 -) 5<&0
---
> eval "$cmp" /dev/fd/5 - >$3) 5<&0
14:05:47 @lester:~% gzip zdiff.in zdiff_mod.in
14:06:10 @lester:~% /bin/zdiff zdiff.in.gz zdiff_mod.in.gz
14:06:28 @lester:~% /usr/local/bin/zdiff zdiff.in.gz zdiff_mod.in.gz
107c107
< eval "$cmp" /dev/fd/5 -) 5<&0
---
> eval "$cmp" /dev/fd/5 - >$3) 5<&0
14:06:39 @lester:~% diff zdiff.in.gz zdiff_mod.in.gz
Files zdiff.in.gz and zdiff_mod.in.gz differ
In other words, /bin/zdiff does not report any difference between
zdiff.in and zdiff_mod.in.
I would be surprised if this already has not lead to some bad results
for some users who use these utilities daily to check their codes.
Thanks for your attention to this matter
Lester
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