Install gobjc++ by entering the following commands in the terminal:
sudo apt update sudo apt install gobjc++
Description:
GNU Objective-C++ compiler
This is the GNU Objective-C++ compiler, which compiles Objective-C++ on platforms supported by the gcc compiler. It uses the gcc backend to generate optimized code. . This is a dependency package providing the default GNU Objective-C++ compiler.
Version: 4:7.3.0-3ubuntu2
Section: universe/devel