From: Joel VanderWerf <vjoel@...>
Date: 2009-02-05T00:40:36+09:00
Subject: Re: Native gem roundup!

Rados�aw Bu�at wrote:
>>> Gem::Specification.list.select {|s| s.extensions.size > 0 }.map {|s| s.name }.sort
> => ["RedCloth", "amalgalite", "bcrypt-ruby", "concurrent", "curb",
> "do_sqlite3", "ebb", "em_httpserver", "erlectricity", "eventmachine",
> "eventmachine_httpserver", "fastthread", "fcgi", "ferret", "ffi",
> "fxruby", "god", "hpricot", "json", "linecache", "memcached",
> "mongrel", "mysql", "narray", "ncurses", "neuro", "nokogiri",
> "oniguruma", "passenger", "raspell", "rbtree", "rcov", "rev", "rice",
> "rmagick", "ruby-debug-base", "ruby-opengl", "ruby-postgres",
> "ruby-prof", "rubygame", "rubynode", "sqlite3-ruby", "swiftiply",
> "termios", "thin", "thin-turbo", "unicode", "zipruby"]
> 
> At this moment I have 307 installed gems (I like playing a lot with new things).
> 

Not sure why this doesn't work for me:

$ ruby -e 'p Gem::Specification.list.select {|s| s.extensions.size > 0 
}.map {|s| s.name }.sort'
[]

Still, looking at the output of `find -name '*.so'` on a couple of 
systems, and picking out the ones that are really used:

RubyRRDtool
ruby-opengl
json
rbtree
sqlite3-ruby
amalgalite
narray

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407