_add_dep: remove questionable need_restart logic
This need_restart logic was apparently intended to interact with
want_restart_for_use_change, but doesn't appear to be necessary
anymore. We really don't want the need_restart flag to prevent
"missing dependency" backtracking.
diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index 9033285..34ad413 100644
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -1695,9 +1695,13 @@
self._slot_operator_unsatisfied_probe(dep):
self._slot_operator_unsatisfied_backtrack(dep)
return 1
- elif not self.need_restart():
+ else:
# Do not backtrack if only USE have to be changed in
- # order to satisfy the dependency.
+ # order to satisfy the dependency. Note that when
+ # want_restart_for_use_change sets the need_restart
+ # flag, it causes _select_pkg_highest_available to
+ # return None, and eventually we come through here
+ # and skip the "missing dependency" backtracking path.
dep_pkg, existing_node = \
self._select_package(dep.root, dep.atom.without_use,
onlydeps=dep.onlydeps)
