Index: rdiscount-2.2.7.3/ext/extconf.rb
===================================================================
--- rdiscount-2.2.7.3.orig/ext/extconf.rb
+++ rdiscount-2.2.7.3/ext/extconf.rb
@@ -34,6 +34,7 @@ end
 
 $defs.push("-DVERSION=\\\"#{VERSION}\\\"")
 $defs.push("-DBRANCH=\"\"")
+$CFLAGS += " -Wno-error=return-type "
 
 # Post XCode 5.1 the command line tools on OS X treat unrecognised 
 # command line options as errors and it's been seen that