\fB<dev\-lang/python\-2.0\fR matches the latest available version of Python
before 2.0. Note that in many shells you will need to escape characters such
as '<' and '='; use single\- or double\-quotes around the \fIatom\fR
-to get around escaping problems.
+to get around escaping problems. You may also constrain an atom to match a
+specific \fBSLOT\fR by appending a colon and a \fBSLOT\fR. Example:
+\fBx11\-libs/qt:3\fR.
.SH "ACTIONS"
.TP
.BR "No action"