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component/ZEO/buildout.cfg

@@ -10,6 +10,13 @@ parts = ZEO/scripts
 
 
 # ZEO provides either ZEO<X> depending on ZODB major version.
+#
+# - ZEO3 is part of ZODB3 distribution
+#   https://github.com/zopefoundation/ZODB/tree/3.10.7-4-gb8d7a8567/src
+# - ZEO4 works only with ZODB4
+#   https://github.com/zopefoundation/ZEO/blob/4.3.1-1-g47d3fbe8/setup.py#L122
+# - ZEO5 works only with ZODB5
+#   https://github.com/zopefoundation/ZEO/blob/5.2.2-1-g3d90ed42/setup.py#L20
 [ZEO]
 recipe  = slapos.recipe.build
 depends = ${ZODB:egg}