cc65 return sequence difference porting from other systems

Hi!  I am working on a text adventure.  I need to continue it.  I also have some code around which others can build text adventures for cc65.  I have the latter available for CBM and Atari 8-bit models and want to port it to the Apple2enh.  The problem is that the other systems execute a Return in a string as "\n" while the Apple2 uses "\r."  Somebody elsewhere told me about the charmap #pragma of cc65.  What numbers do I need to supply to get "\n" to translate to "\r"?