# Roo gem installation fail

**URL:** <https://www.ruby-forum.com/t/roo-gem-installation-fail/148001>\
**Category:** Rails\
**Created:** [September 8, 2008, 7:59am UTC](https://www.ruby-forum.com/t/roo-gem-installation-fail/148001 "2008-09-08T07:59:16Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![shaily903](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/c68b51/32.png) [@shaily903](https://www.ruby-forum.com/u/shaily903)\
**Post date:** [September 8, 2008, 7:59am UTC](https://www.ruby-forum.com/t/roo-gem-installation-fail/148001/1 "2008-09-08T07:59:16Z")

</div>

hi

I am tried to install roo gem 1.2.0 but it gives me following error. It  
seems it require stdio.h which is not present. Can you please help me  
how to install roo gem

checking for stdio.h… no  
\*\*\* extconf.rb failed \*\*\*  
Could not create Makefile due to some reason, probably lack of  
necessary libraries and/or headers. Check the mkmf.log file for more  
details. You may need configuration options.

Provided configuration options:  
–with-opt-dir  
–without-opt-dir  
–with-opt-include  
–without-opt-include=${opt-dir}/include  
–with-opt-lib  
–without-opt-lib=${opt-dir}/lib  
–with-make-prog  
–srcdir=.  
–curdir  
–ruby=C:/Downloads/InstantRails-2.0-win/ruby/bin/ruby

Gem files will remain installed in  
C:/Downloads/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.161  
for inspection.  
Results logged to  
C:/Downloads/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6.161/ext/fast\_xs/gem\_make.out

---

<div class="post-metadata">

**Author:** ![shaily903](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/c68b51/32.png) [@shaily903](https://www.ruby-forum.com/u/shaily903)\
**Post date:** [September 11, 2008, 4:33pm UTC](https://www.ruby-forum.com/t/roo-gem-installation-fail/148001/2 "2008-09-11T16:33:26Z")

</div>

Shaily Goel wrote:

> hi
> 
> I am tried to install roo gem 1.2.0 but it gives me following error. It  
> seems it require stdio.h which is not present. Can you please help me  
> how to install roo gem
> 
> checking for stdio.h… no  
> \*\*\* extconf.rb failed \*\*\*  
> Could not create Makefile due to some reason, probably lack of  
> necessary libraries and/or headers. Check the mkmf.log file for more  
> details. You may need configuration options.

[http://www.ruby-forum.com/topic/164179#new](http://www.ruby-forum.com/topic/164179#new)  
-=R