libc6-sparc64v 2.10.1-0ubuntu5 (sparc binary) in ubuntu karmic

 This package includes shared versions of the standard C library and the
 standard math library, as well as many others. This is the 64bit version
 of the library, meant for UltraSPARC systems.
 .
 This set of libraries is optimized for SUN4V Niagara and derivative
 processors. It only needs to be installed on machines using
 SUN4V Niagara and derivatives. If you install this on a machine without
 such chips, it won't even be used.