$ gnatprep [ switches ] infile outfile [ deffile ]
is an optional sequence of switches as described in the next section.
is the full name of the input file, which is an Ada source file containing preprocessor directives.
is the full name of the output file, which is an Ada source
in standard Ada form. When used with GNAT, this file name will
normally have an
is the full name of a text file containing definitions of
preprocessing symbols to be referenced by the preprocessor. This argument is
optional, and can be replaced by the use of the