The
<literal>FOO
</literal> and
<literal>BAR
</literal> options do not have a standard description, so one need to be written. The other options already have one in
<filename>Mk/bsd.options.desc.mk
</filename> so writing one is not needed. The
<literal>DOCS
</literal> and
<literal>EXAMPLES
</literal> use target helpers to install their files, they are shown here for completeness, though they belong in
<xref linkend="porting-order-targets"/>, so other variables and targets could be inserted before them.