Egg extras not installed for recipes
Automatic installation of eggs required by an egg extra doesn't seem to
work for a recipe used with zc.buildout as documented for eggs in general:
Suppose myrecipe has two entry points, the "fancy" one employing
yourrecipe. Now if I declare yourrecipe as an extra requirement only to be
installed if the "fancy" entry point is used to install any buildout part:
"default = myrecipe.
"fancy = myrecipe.bar:Recipe [bar_extra]", ]},
and use myrecipe I get a pkg_resources.
concerning yourrecipe. It sort of works if I manually copy the yourrecipe
egg to the eggs directory beforehand, though.