.SH "COMPILER FRONT-END TOOL OPTIONS"
.TP
\-\fBInterfaces\fP \fIinterfaces\fP \fB\-Modules\fP \fImodules\fP 
The (names of the) interfaces and modules to compile. The
location of an interface or module is found by looking it
up on the search path. These names must conform to the Modula-3
syntax for a module or interface name. Pathnames are not
allowed.
.TP
\-\fBPathNames\fP \fIpathnames\fP
The names of files from which to compile an interface or module.
Only files with pathnames ending in the set of legal Modula-3 source file
extensions are compiled. Files with other extensions are silently ignored.
.TP
.B \-PrintUnits
Print the name of each unit as it is compiled and the
file from which it was read. The indentation indicates the
import depth.
.TP
.B \-TTimings
Generate output on the time taken to execute the compiler phases.
.PP
The \fB\-PathNames\fP keyword is the only one that is optional,
so `m3tool Foo.m3' is the same as `m3tool -PathNames Foo.m3' (and
as `m3tool -pn Foo.m3').