I use linux on a pc and one of my friends who uses a mac wants me to write a small app for him. It doesn't need any GUI of anything, just a few lines in C++ with a bitmap image for input and an output to a text file. Is there a way for me to compile it in linux so that he'll be able to use it with his mac? He isn't very computer literate so I don't want him to have to do a lot of tweaking. Thanks.