cache.sqlite: handle readonly more
diff --git a/pym/portage/cache/sqlite.py b/pym/portage/cache/sqlite.py
index 4eb340b..fcc62ff 100644
--- a/pym/portage/cache/sqlite.py
+++ b/pym/portage/cache/sqlite.py
@@ -78,7 +78,7 @@
database=_unicode_decode(self._dbpath), **connection_kwargs)
self._db_cursor = self._db_connection.cursor()
self._db_cursor.execute("PRAGMA encoding = %s" % self._db_escape_string("UTF-8"))
- if not self._ensure_access(self._dbpath):
+ if not self.readonly and not self._ensure_access(self._dbpath):
raise cache_errors.InitializationError(self.__class__, "can't ensure perms on %s" % self._dbpath)
self._db_init_cache_size(config["cache_bytes"])
self._db_init_synchronous(config["synchronous"])
