Binary package “libc6-amd64-i386-cross” in ubuntu mantic

GNU C Library: 64bit Shared libraries for AMD64 (for cross-compiling)

 This package was generated by dpkg-cross for cross compiling.
 .
 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 AMD64 systems.