libstdc++6-4.7-pic-powerpc-cross 4.7.2-18ubuntu1cross0.4 (i386 binary) in ubuntu raring

 This is used to develop subsets of the libstdc++ shared libraries for
 use on custom installation floppies and in embedded systems.
 .
 Unless you are making one of those, you will not need this package.
 .
 This package contains files for powerpc architecture, for use in cross-compile
 environment.