gsl on heroku

gistfile1.txt

Running `console` attached to terminal... up, run.7360
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:251:in `require': libgsl.so.0: cannot open shared object file: No such file or directory - /app/vendor/bundle/ruby/1.9.1/gems/gsl-1.15.3/lib/rb_gsl.so (LoadError)
  from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:251:in `block in require'
	from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:236:in `load_dependency'
	from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.12/lib/active_support/dependencies.rb:251:in `require'
	from /app/vendor/bundle/ruby/1.9.1/gems/gsl-1.15.3/lib/gsl.rb:2:in `<top (required)>'
	from /app/vendor/bundle/ruby/1.9.1/gems/bundler-1.3.2/lib/bundler/runtime.rb:72:in `require'
	from /app/vendor/bundle/ruby/1.9.1/gems/bundler-1.3.2/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
	from /app/vendor/bundle/ruby/1.9.1/gems/bundler-1.3.2/lib/bundler/runtime.rb:70:in `each'
	from /app/vendor/bundle/ruby/1.9.1/gems/bundler-1.3.2/lib/bundler/runtime.rb:70:in `block in require'
	from /app/vendor/bundle/ruby/1.9.1/gems/bundler-1.3.2/lib/bundler/runtime.rb:59:in `each'
	from /app/vendor/bundle/ruby/1.9.1/gems/bundler-1.3.2/lib/bundler/runtime.rb:59:in `require'
	from /app/vendor/bundle/ruby/1.9.1/gems/bundler-1.3.2/lib/bundler.rb:132:in `require'
	from /app/config/application.rb:7:in `<top (required)>'
	from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/commands.rb:39:in `require'
	from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.12/lib/rails/commands.rb:39:in `<top (required)>'
	from script/rails:6:in `require'
	from script/rails:6:in `<main>'