$ sudo apt-get update
$ sudo apt-get install gcc-h8300-hms 

gcc-h8300-hms is installed in your system.

Make ensure the gcc-h8300-hms package were installed using the commands given below,

$ sudo dpkg-query -l | grep gcc-h8300-hms *

You will get with gcc-h8300-hms package name, version, architecture and description in a table

gcc-h8300-hms package basic information: