Index: doc/config/sets.docbook
===================================================================
--- doc/config/sets.docbook	(revision 11319)
+++ doc/config/sets.docbook	(working copy)
@@ -455,19 +455,6 @@
 			</para>
 			</sect3>
 		</sect2>
-		<sect2 id='config-set-classes-InheritSet'>
-		<title>portage.sets.dbapi.InheritSet</title>
-		<para>
-		Package set which contains all packages
-		that inherit one or more specific eclasses.
-		This class supports the following options:
-		<itemizedlist>
-		<listitem><varname>inherits</varname>: Required. A list of eclass names
-		which should be used to create the package set.
-		</listitem>
-		</itemizedlist>
-		</para>
-		</sect2>
 		<sect2 id='config-set-classes-OwnerSet'>
 		<title>portage.sets.dbapi.OwnerSet</title>
 		<para>
@@ -481,20 +468,23 @@
 		</itemizedlist>
 		</para>
 		</sect2>
-		<sect2 id='config-set-classes-RestrictSet'>
-		<title>portage.sets.dbapi.RestrictSet</title>
+		<sect2 id='config-set-classes-VariableSet'>
+		<title>portage.sets.dbapi.VariableSet</title>
 		<para>
 		Package set which contains all packages
-		that match specified RESTRICT values.
+		that match specified values of specified variable.
 		This class supports the following options:
 		<itemizedlist>
+		<listitem><varname>variable</varname>: The name of
+		the specified variable whose values are checked.
+		</listitem>
 		<listitem><varname>includes</varname>: A list of
-		values that must be contained within the RESTRICT
-		metadata.
+		values that must be contained within the specified
+		variable.
 		</listitem>
 		<listitem><varname>excludes</varname>: A list of
-		values that must not be contained within the RESTRICT
-		metadata.
+		values that must not be contained within the specified
+		variable.
 		</listitem>
 		</itemizedlist>
 		</para>
@@ -545,7 +535,7 @@
 	<listitem><varname>security</varname>: uses <classname>NewAffectedSet</classname> with default options</listitem>
 	<listitem><varname>everything</varname>: uses <classname>EverythingSet</classname></listitem>
 	<listitem><varname>preserved-rebuild</varname>: uses <classname>PreservedLibraryConsumerSet</classname></listitem>
-	<listitem><varname>live-rebuild</varname>: uses <classname>InheritSet</classname></listitem>
+	<listitem><varname>live-rebuild</varname>: uses <classname>VariableSet</classname></listitem>
 	<listitem><varname>module-rebuild</varname>: uses <classname>OwnerSet</classname></listitem>
 	<listitem><varname>downgrade</varname>: uses <classname>DowngradeSet</classname></listitem>
 	</itemizedlist>
Index: pym/portage/sets/dbapi.py
===================================================================
--- pym/portage/sets/dbapi.py	(revision 11319)
+++ pym/portage/sets/dbapi.py	(working copy)
@@ -8,7 +8,7 @@
 from portage.sets import SetConfigError, get_boolean
 
 __all__ = ["CategorySet", "DowngradeSet",
-	"EverythingSet", "InheritSet", "OwnerSet", "RestrictSet"]
+	"EverythingSet", "OwnerSet", "VariableSet"]
 
 class EverythingSet(PackageSet):
 	_operations = ["merge", "unmerge"]
@@ -89,63 +89,17 @@
 
 	singleBuilder = classmethod(singleBuilder)
 
-class InheritSet(PackageSet):
+class VariableSet(EverythingSet):
 
 	_operations = ["merge", "unmerge"]
 
 	description = "Package set which contains all packages " + \
-		"that inherit one or more specific eclasses."
+		"that match specified values of specified variable."
 
-	def __init__(self, portdb=None, vardb=None, inherits=None):
-		super(InheritSet, self).__init__()
+	def __init__(self, vardb, portdb=None, variable=None, includes=None, excludes=None):
+		super(VariableSet, self).__init__(vardb)
 		self._portdb = portdb
-		self._db = vardb
-		self._inherits = inherits
-
-	def load(self):
-		atoms = []
-		inherits = self._inherits
-		xmatch = self._portdb.xmatch
-		xmatch_level = "bestmatch-visible"
-		cp_list = self._db.cp_list
-		aux_get = self._db.aux_get
-		portdb_aux_get = self._portdb.aux_get
-		vardb_keys = ["SLOT"]
-		portdb_keys = ["INHERITED"]
-		for cp in self._db.cp_all():
-			for cpv in cp_list(cp):
-				slot, = aux_get(cpv, vardb_keys)
-				slot_atom = "%s:%s" % (cp, slot)
-				ebuild = xmatch(xmatch_level, slot_atom)
-				if not ebuild:
-					continue
-				inherited, = portdb_aux_get(ebuild, portdb_keys)
-				if inherits.intersection(inherited.split()):
-					atoms.append(slot_atom)
-
-		self._setAtoms(atoms)
-
-	def singleBuilder(cls, options, settings, trees):
-		if not "inherits" in options:
-			raise SetConfigError("no inherits given")
-
-		inherits = options["inherits"]
-		return cls(portdb=trees["porttree"].dbapi,
-			vardb=trees["vartree"].dbapi,
-			inherits=frozenset(inherits.split()))
-
-	singleBuilder = classmethod(singleBuilder)
-
-class RestrictSet(EverythingSet):
-
-	_operations = ["merge", "unmerge"]
-
-	description = "Package set which contains all packages " + \
-		"that match specified RESTRICT values."
-
-	def __init__(self, vardb, portdb=None, includes=None, excludes=None):
-		super(RestrictSet, self).__init__(vardb)
-		self._portdb = portdb
+		self._variable = variable
 		self._includes = includes
 		self._excludes = excludes
 
@@ -153,16 +107,17 @@
 		ebuild = self._portdb.xmatch("bestmatch-visible", atom)
 		if not ebuild:
 			return False
-		restrict, = self._portdb.aux_get(ebuild, ["RESTRICT"])
-		restrict = restrict.split()
-		if self._includes and not self._includes.intersection(restrict):
+		values, = self._portdb.aux_get(ebuild, [self._variable])
+		values = values.split()
+		if self._includes and not self._includes.intersection(values):
 			return False
-		if self._excludes and self._excludes.intersection(restrict):
+		if self._excludes and self._excludes.intersection(values):
 			return False
 		return True
 
 	def singleBuilder(cls, options, settings, trees):
 
+		variable = options.get("variable", "")
 		includes = options.get("includes", "")
 		excludes = options.get("excludes", "")
 
@@ -172,7 +127,8 @@
 		return cls(trees["vartree"].dbapi,
 			portdb=trees["porttree"].dbapi,
 			excludes=frozenset(excludes.split()),
-			includes=frozenset(includes.split()))
+			includes=frozenset(includes.split()),
+			variable=variable)
 
 	singleBuilder = classmethod(singleBuilder)
 
Index: cnf/sets.conf
===================================================================
--- cnf/sets.conf	(revision 11319)
+++ cnf/sets.conf	(working copy)
@@ -47,9 +47,10 @@
 
 # Installed ebuilds that inherit from known live eclasses.
 [live-rebuild]
-class = portage.sets.dbapi.InheritSet
+class = portage.sets.dbapi.VariableSet
 world-candidate = False
-inherits = cvs darcs git mercurial subversion
+variable = RESTRICT
+includes = constant-sources
 
 # Installed packages that own files inside /lib/modules.
 [module-rebuild]