Re: [PATCH] Re-re-re-fix common tail optimization

>> >> But as at least one released version of GNU diff has a pretty serious
>> >> bug,
>> >> I would rather not rely too much on diff.  (BTW this was the reason I
>> >> wanted --no-index so badly.)
>> >>
>> >> So yeah, the second "diff" cannot be "git diff".  Maybe "cmp", but not
>> >> "git diff".
>> > 
>> > Well cmp would be fine as well, seeing all we want is a boolean "is 
>> > this the same or not" answer. (I'm not familiar with the GNU diff bug 
>> > you speak of, but was it so bad that it couldn't even get *that* 
>> > answer right?)
>> 
>> Heh, there's at least one distribution out there (Suse 10.1) that comes 
>> with a *cmp* that doesn't get that answer right if its output is 
>> connected to /dev/null, which is the case when you simply 'make test'.
>
> Yeah.  That's what it was.  I even posted a patch to GNU diff, only to 
> find out that it was already fixed in CVS.  Sigh.