Install gdc-multilib by entering the following commands in the terminal:
sudo apt update sudo apt install gdc-multilib
Description:
D compiler (language version 2) (multilib files)
This compiler supports D language version 2. . A dependency package on architectures with multilib support; the package contains dependencies for the non-default multilib architecture(s).
Version: 4:8-20180321-2ubuntu2
Section: universe/devel