Binary package “lib64stdc++6-powerpc-cross” in ubuntu focal

GNU Standard C++ Library v3 (powerpc) (64bit)

 This package contains an additional runtime library for C++ programs
 built with the GNU compiler.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.
 .
 This package contains files for powerpc architecture, for use in cross-compile
 environment.

Published versions