How to compile a simple ruby script with macruby?

Question

I'm trying to compile a simple "Hello World" ruby script to a Mac OS binary using macrubyc. This is the command I'm using:

macrubyc -C hello_world.rb

This is the output of the file command:

file hello_world.rbo
hello_world.rbo: Mach-O 64-bit bundle x86_64

However, when I try to run the created binary, I get ./hello_world.rbo: cannot execute binary file

PS: The hello_world.rb script contains just a single line:

puts "Hello World!"

Answer 1

You are not linking your program. Invoke macrubyc like this:

macrubyc -o hello_word hello_world.rb

When you run macruby -C it creates an object file which has to be linked in order to be executed.