Binary package “libc6-dev-amd64-x32-cross” in ubuntu kinetic

GNU C Library: 64bit Development Libraries for AMD64 (for cross-compiling)

 This package was generated by dpkg-cross for cross compiling.
 .
 Contains the symlinks and object files needed to compile and link programs
 which use the standard C library. This is the 64bit version of the
 library, meant for AMD64 systems.