libfs-dev 2:1.0.0-3build1 (i386 binary) in ubuntu edgy

 libFS, the Font Services library, provides various functions useful to
 X11 font servers, and clients connecting to font servers. It is not
 used outside of these implementations.
 .
 This package contains the development headers for the library found in
 libfs6. Non-developers likely have little use for this package.
 .
 More information about X.Org can be found at:
 <URL:http://xorg.freedesktop.org>
 <URL:http://lists.freedesktop.org/mailman/listinfo/xorg>
 .
 This module can be found as the module 'lib/FS' at
 :pserver:anoncvs@cvs.freedesktop.org:/cvs/xorg