[bug #19605] find does not report symlink loop when trying to follow symlinks

[Geoff Clare]

Follow-up Comment #3, bug #19605 (project findutils):

You are confusing directory loops and symlink loops, which are completely
different things.  In a directory loop, a symlink points up to a parent
directory of the symlink.  A stat() of the symlink succeeds.  In a symlink
loop the symlink ends up (possibly through other symlinks) pointing to
itself.  A stat() of the symlink fails with ELOOP.  The POSIX requirements
relating to detection of directory loops have no bearing on this problem,
which is about symlink loops.

It's interesting that adding -size produces the desired result, but it
shouldn't make any difference.  With -L (or -H), find needs to stat() each
path operand in order to tell whether it resolves to a directory that it
should descend into.

You had your doubts about bug 11148 as well, but in the end you decided to
make the change I requested.

The current versions of AIX, HP-UX and Solaris all report the expected error,
the same as findutils 4.2.28 does.  I can see no justification for making
4.3.3 behave differently.

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