# How to Display ./configure options from compiled Ruby?

**URL:** <https://www.ruby-forum.com/t/how-to-display-configure-options-from-compiled-ruby/189982>\
**Category:** Ruby\
**Created:** [June 10, 2010, 8:37pm UTC](https://www.ruby-forum.com/t/how-to-display-configure-options-from-compiled-ruby/189982 "2010-06-10T20:37:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kscott](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/7993a0/32.png) [@kscott](https://www.ruby-forum.com/u/kscott)\
**Post date:** [June 10, 2010, 8:37pm UTC](https://www.ruby-forum.com/t/how-to-display-configure-options-from-compiled-ruby/189982/1 "2010-06-10T20:37:47Z")

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Hi,

With perl you can run “perl -V” to see the configuration options.

Is there an equivalent for Ruby? I’d like to build a Ruby binary using  
the same options as one that I have already.

Thanks,  
Ken

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**Author:** ![kscott](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/7993a0/32.png) [@kscott](https://www.ruby-forum.com/u/kscott)\
**Post date:** [June 10, 2010, 8:58pm UTC](https://www.ruby-forum.com/t/how-to-display-configure-options-from-compiled-ruby/189982/2 "2010-06-10T20:58:22Z")

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Ken Stailey wrote:

> Hi,
> 
> With perl you can run “perl -V” to see the configuration options.
> 
> Is there an equivalent for Ruby? I’d like to build a Ruby binary using  
> the same options as one that I have already.

This seems to work for me (ruby 1.8.7):

$ ruby -r rbconfig -e ‘puts Config::CONFIG[“configure\_args”]’  
‘–enable-pthread’ ‘CC=gcc-4.4’

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<div class="post-metadata">

**Author:** ![kscott](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/7993a0/32.png) [@kscott](https://www.ruby-forum.com/u/kscott)\
**Post date:** [June 10, 2010, 11:09pm UTC](https://www.ruby-forum.com/t/how-to-display-configure-options-from-compiled-ruby/189982/3 "2010-06-10T23:09:10Z")

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Thanks very much Joel VanderWerf