ada-mode: Other compiler

 
 3.2 Other compiler
 ==================
 
 By default, Ada mode is configured to use the Gnu Ada compiler GNAT.
 
    To use a different Ada compiler, you must specify the command lines
 used to run that compiler, either in lisp variables or in Emacs Ada mode
 project files.  See SeeProject file variables for the list of
 project variables, and the corresponding lisp variables.