# How to make the gem?

**URL:** <https://www.ruby-forum.com/t/how-to-make-the-gem/130159>\
**Category:** Ruby\
**Created:** [February 25, 2008, 10:15pm UTC](https://www.ruby-forum.com/t/how-to-make-the-gem/130159 "2008-02-25T22:15:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![matrixise](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/94ad74/32.png) [@matrixise](https://www.ruby-forum.com/u/matrixise)\
**Post date:** [February 25, 2008, 10:15pm UTC](https://www.ruby-forum.com/t/how-to-make-the-gem/130159/1 "2008-02-25T22:15:41Z")

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Hi all,

I wanted to test thin at work, on Windows with VC++ 2005, but I can’t  
install it because I got an error with the  
compilation of em.cpp, because EINTR was not included in the  
“project.h”.

I would like to test thin and use it, but with this bug, I can’t install  
it :-).

I can compile EventMachine with ruby ext\extconf.rb and run the  
makefile. But how can I generate the gem, because I  
didn’t find the gemspec file.

Best Regards,

Stephane