.TH CPPTAIL "" "" "Environmental Variable"
.PC "Append options to end of cpp command line"
\fBexport CPPTAIL=\fIoptions\fR
.PP
The COHERENT C preprocessor
.B cpp
reads the environmental variables
.B CPPHEAD
and
.B CPPTAIL
before it begins its work.
You can set these variables to hold the default options that you want the
preprocessor always to use.
.PP
.B cpp
appends the options in
.B CPPTAIL
to the end of its command line.
.SH "See Also"
.Xr "cpp," cpp
.Xr "CPPHEAD," cpphead
.Xr "environmental variables" environva
