Rakefile in erlectricity-0.2.0 vs Rakefile in erlectricity-0.2.1

@@ -47,11 +47,14 @@
   p.test_globs = ["test/**/test_*.rb"]
   p.clean_globs = CLEAN  #An array of file patterns to delete on clean.
   
   # == Optional
   p.changes = p.paragraphs_of("History.txt", 0..1).join("\n\n")
-  p.extra_deps = [ ]     # An array of rubygem dependencies [name, version], e.g. [ ['active_support', '>= 1.3.1'] ]
+  p.extra_deps = [
+    ['concurrent', '0.2.2'],
+  ]     # An array of rubygem dependencies [name, version], e.g. [ ['active_support', '>= 1.3.1'] ]
   #p.spec_extras = {}    # A hash of extra values to set in the gemspec.
+  p.spec_extras = {:extensions => ['ext/extconf.rb']}
 end
 
 desc 'Release the website and new gem version'
 task :deploy => [:check_version, :release]