.-MODMap---.   
>>-+----------+------------------------------------------------><
   '-NOMODMap-'   

When the MODMAP option is set, IDF prefers the "fn MAP *" file over a "LOAD MAP *" file for symbol information. If no "fn MAP *" is found, IDF checks for a "LOAD MAP *" file.

When the NOMODMAP option is set, IDF prefers the "LOAD MAP *" file over a "fn MAP *" file for symbol information. If no "LOAD MAP *" is found, IDF checks for a "fn MAP *" file.