eddie cianci

cantabip -

good to know, thanks for mentioning!

I also want to point out, Tim Pope has basically rolled up all the readline build integration into this rbenv plugin:
https://github.com/tpope/rbenv-readline

it works, but apparently rbenv passes CONGFIGURE_OPTS to dependent libraries as well.

per https://github.com/sstephenson/ruby-build we can use RUBY_CONFIGURE_OPTS instead which are just for building MRI.

nice catch!

If you happen to use rbenv, there's a similar plugin available from Chris Eppstein at https://github.com/chriseppstein/rbenv-each

Then you can run

rbenv each -v ruby -e 'puts "hello, world"'

And it outputs

[1.9.3-p374]: ruby -e puts "hello, world"
*******************************************************
hello, world
[1.9.3-p385]: ruby -e puts "hello, world"
*******************************************************
hello, world
[jruby-1.7.2]: ruby -e puts "hello, world"
*******************************************************
hello, world