.Bl -tag -width Ds
.It Fl h , Fl -help
Show a usage message and exit.
-.It Fl "debug"
-Turn on some compiler debugging mechanisms.
-.It Fl memchk
-Turn on compiler mem-check. (Shows allocations and checks for leaks.)
.It Fl o , Fl -output= Ns Ar filename
Specify the output filename. Defaults to progs.dat. This will overwrite
the output file listed in a
Disable optimization entirely
.El
.Pp
-.It Fl O Ns Ar name Fl Ono- Ns Ar name
+.It Fl O Ns Ar name , Fl Ono- Ns Ar name
Enable or disable a specific optimization. Note that these options
must be used after setting the optimization level, otherwise they'll
be overwritten.
Be less verbose. In particular removes the messages about which files
are being processed, and which compilation mode is being used, and
some others. Warnings and errors will of course still be displayed.
+.It Fl D Ns Ar macroname , Fl D Ns Ar macroname Ns = Ns Ar value
+Predefine a macro, optionally with a optional value.
.It Fl E
Run only the preprocessor as if
.Fl f Ns Cm ftepp
and
.Fl f
flag from. See the
+.It Fl "debug"
+Turn on some compiler debugging mechanisms.
+.It Fl memchk
+Turn on compiler mem-check. (Shows allocations and checks for leaks.)
+.It Fl -memdumpcols Ns Ar columns
+Changes the number of columns to use for the debug memory dump, defaults to 16.
.Sx CONFIG
section about the file format.
.It Fl redirout= Ns Ar file