wrong
Exists atleast 3 ways how build plugins.
1.
after building server run
make plugin.myplugin1
where myplugin1 is your plugin name
or you can add your plugin name into variable in make file
2.
add your plugins into make file. change
MYPLUGINS := $(MYPLUGINS)
to
MYPLUGINS := $(MYPLUGINS) myplugin1
where myplugin1 is your plugin name
3.
use environment variables. run command
MYPLUGINS=myplugin1 make plugins
where myplugin1 is your plugin name