Subject: Re: [bug-diffutils] bug#77840: Testing diffutils 3.12 on PPC Mac OS X 10.4.11, Tiger, produces so many failures

From: Paul Eggert <[email-masked]>
Date: Mon, 19 May 2025 11:16:38 -0700

There are lots of failures there, but unfortunately I don't have access 
to that old platform so you'll need to do some more digging to isolate 
the cause.

Let's look at the first failure.

echo a > a
echo b > b
diff a b

This doesn't generate the correct output. Can you run 'diff' under a 
debugger and see why?