Well, to rubygems's credit they know post install scripts are a bad idea and they don't support it. The only way to do that in a gem is a hack based on extconf.

Well, to rubygems's credit they know post install scripts are a bad idea and they don't support it. The only way to do that in a gem is a hack based on extconf.rb (the original intent of this file being to compile native extensions). But yes ultimately you are right.