Is there any support for jruby?
Sorry, I've never tested the gem with jruby, what's the issue when you try to run it?
The root of the problem is the dependency on the pg gem which is incompatible with JRuby.
The sujithrs fork supports jruby, but it's falling behind.
I've installed the jruby env here and will give it a shot as soon as I can :)
Maybe you can fix it by adding to gemspec:
Gem::Specification.new do |s|
if RUBY_PLATFORM =~ /java/
Above will not fix it, since its the platform at building time of the gem.
Instead, I think the 'pg' should be a development dependency (add_development_dependency).
See https://github.com/dockyard/postgres_ext/blob/master/postgres_ext.gemspec for details.
Have you had a look at this fix? highflare/activerecord-postgres-hstore@6d42ab7