Compiling for Mac-OS

[DSMan195276]

Is it possible the customer did not mark the program as executable? If you gave it to them as a zip file then the flag wouldn't be carried over. Other options like `.tar.gz` would carry over file permissions like the executable bit and might be a better option for giving the program to the customer (though I don't know if `.tar.gz` is the preferred one on Mac OS or if they like something else).