.PP
The name of the file in which a definition module is stored must be the same as
the module-name, apart from the extension.
-Also, in most Unix systems filenames are only 14 characters long.
-So, given an IMPORT declaration for a module called "LongModulName",
-the compiler will try to open a file called "LongModulN.def".
-The requirement does not hold for implementation or program modules,
-but is certainly recommended.
.SH CALLING THE COMPILER
The easiest way to do this is to let the \fIack\fR(1) program do it.
So, to compile a program module "prog.mod", just call