gobjc++-7-multilib-x86-64-linux-gnu 7.3.0-16ubuntu3cross1 (arm64 binary) in ubuntu bionic

 This is the GNU Objective-C++ compiler, which compiles Objective-C++ on
 platforms supported by the gcc compiler.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).