Twas brillig at 16:03:00 23.11.2009 UTC+01 when jed@59A2.org did gyre and gimble:

 JB> The real solution is for notmuch to check mtime of whatever the
 JB> symlink's target.

It does exactly this AFACT, stat() everywhere, not lstat().

-- 
  http://fossarchy.blogspot.com/