depth-test.py failing

I'm getting really weird failures in depth-test.py on Mac OS. I noticed
it first in my trunk working copy (out-of-source build); a test was
asserting in libsvn_subr/sqlite.c:856 (i.e., a statement was not
properly reset). I couldn't find the reason, but since I had local
modifications that shouldn't have affected that part of the code, I was
worried.

I checked out another copy of trunk and transferred the local mods over,
one file at a time, recompiling and re-running the test each time ...
the test passed. Re-ran whole tests, all tests passed again. Tried the
same with an out-of-trree build with the same configuration as the
original build ... the test still passed.

Then I ran /all/ the tests -- and depth-test.py failed, but a
/different/ test this time. I thought, well, that's weird; so I cleaned
out svn-test-work and ran just depth-test.py ... and it failed again and
keeps failing.

I'm a bit at a loss now. Any ideas? Before you ask: valgrind is not
reliable on the Mac.

-- Brane

-- 
Branko Čibej | Director of Subversion
WANdisco // Non-Stop Data
e. brane_at_wandisco.com