This is a precaution to avoid current and future naming conflicts with
common system libraries.  libutil (part of libc) is the first, but probably
not the last example that already caused trouble twice.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1614 8c4709b5-6ec9-48aa-a5cd-a96041d1645a