# Gem install mechanize; Windows

**URL:** <https://www.ruby-forum.com/t/gem-install-mechanize-windows/146616>\
**Category:** Ruby\
**Created:** [August 23, 2008, 2:24am UTC](https://www.ruby-forum.com/t/gem-install-mechanize-windows/146616 "2008-08-23T02:24:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jtucker](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c6cbf5/32.png) [@jtucker](https://www.ruby-forum.com/u/jtucker)\
**Post date:** [August 23, 2008, 2:24am UTC](https://www.ruby-forum.com/t/gem-install-mechanize-windows/146616/1 "2008-08-23T02:24:16Z")

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Um…

D:/ruby/bin/ruby.exe extconf.rb install mechanize  
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.

C:\Documents and Settings\whoami\>ruby -v  
ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]

Any help on this one? Looks like i need stdio.h do I need to install  
some dev version of ruby or what?

Any help is appreciated.  
-Jt

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<div class="post-metadata">

**Author:** ![jtucker](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c6cbf5/32.png) [@jtucker](https://www.ruby-forum.com/u/jtucker)\
**Post date:** [August 23, 2008, 9:13pm UTC](https://www.ruby-forum.com/t/gem-install-mechanize-windows/146616/2 "2008-08-23T21:13:25Z")

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> Any help on this one? Looks like i need stdio.h do I need to install  
> some dev version of ruby or what?

Tried it on mingw–same results. I’ll ask about it. gem install  
mechanize seems to work, though.