Some comments though. First: How to read a readme file. You can print the contents of the readme file by typing:

cat README

This way you don’t have to start the resource intensive application nano. Also, you don’t have to close it afterwards, so this way you’ll not only end up needing less computer resources, but also less energy.

Furthermore, the make clean isn’t really effective. To clean up the mess caused by the compilation of your app, you can delete by following the steps below:

1) cd into the root of the directory of the source files (eg. “cd /path/to/source/files”)
2) type “sudo rm -R map/” without the quote. You may need to type in your root password now.
3) Wait some time. Afterwards reboot your computer to flush your RAM cache. The folder and compilation mess will now be effectively removed.