%bcond_without doc # skip (time-consuming) docs generating; intended for speed up test builds
%bcond_with tk # skip building package with Tk bindings
%bcond_without batteries # Don't include rubygems, json, rake, minitest
-%bcond_without default_ruby # use this Ruby as default system Ruby
+%bcond_with default_ruby # use this Ruby as default system Ruby
%bcond_with bootstrap # build bootstrap version
%define rel 3