The File Link Copy On Write (FL-COW) library is an
LD_PRELOAD based library that automatically breaks
file system hard links. It is injected between the
applications and libc, intercepts open(2) file
calls, and break hard links (if present).
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.