diff -r with symlink to dir

[Gilles Lamiral]

Bonjour,

An old bug I still have with a recent upgrade.
All debian distributions have that sort of self link ("link -> .")
diff should not go (and break) in an endless loop, at least
with a --notfollowsymlink option, no?

Now an example:

mkdir -p /tmp/diffbug/foo
cd /tmp/diffbug/foo
ln -s . selflink
cp -a . ../foo2
cd ..
find . -ls
162367    4 ...   4096 May 23 03:30 .
162368    4 ...   4096 May 23 03:30 ./foo
164507    1 ...      1 May 23 03:30 ./foo/selflink -> .
131570    4 ...   4096 May 23 03:30 ./foo2
131573    1 ...      1 May 23 03:30 ./foo2/selflink -> .

diff -r foo foo2
... # A recursive endless loop...
...link/selflink/selflink: File name too long

diff --version
diff - GNU diffutils version 2.7

Thanks in advance.
-- 
au revoir,
Gilles Lamiral. France, L'Hermitage (35590).
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