# Ruby extconf.rb is creating a wrong make file

**URL:** <https://www.ruby-forum.com/t/ruby-extconf-rb-is-creating-a-wrong-make-file/253616>\
**Category:** Uncategorized\
**Created:** [January 21, 2020, 7:36am UTC](https://www.ruby-forum.com/t/ruby-extconf-rb-is-creating-a-wrong-make-file/253616 "2020-01-21T07:36:41Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![akhilravuri1](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/f0a364/32.png) [@akhilravuri1](https://www.ruby-forum.com/u/akhilravuri1)\
**Post date:** [January 21, 2020, 7:36am UTC](https://www.ruby-forum.com/t/ruby-extconf-rb-is-creating-a-wrong-make-file/253616/1 "2020-01-21T07:36:42Z")

</div>

I have been trying to build ibm\_db driver on my own with ruby 2.6.5 + devkit

When I run ruby extconf.rb it creates make file but make file contains path related to unix but I am running it on windows.

ERROR:-

```auto
$ mingw32-make
mingw32-make: *** No rule to make target '/C/Ruby26/include/ruby-2.6.0/ruby.h', needed by 'ibm_db.o'. Stop.

```

how to solve this issue?

Thanks in advance,  
Akhil