# Change library source toolchain

**URL:** <https://forums.digi.com/t/change-library-source-toolchain/21164>\
**Category:** Linux\
**Tags:** linux, library, toolchain, imx6, yocto\
**Created:** [March 3, 2020, 9:00am UTC](https://forums.digi.com/t/change-library-source-toolchain/21164 "2020-03-03T09:00:31Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![emmanuel\_perea](https://avatars.discourse-cdn.com/v4/letter/e/c6cbf5/32.png) [@emmanuel\_perea](https://forums.digi.com/u/emmanuel_perea)\
**Post date:** [March 3, 2020, 9:00am UTC](https://forums.digi.com/t/change-library-source-toolchain/21164/1 "2020-03-03T09:00:31Z")

</div>

Hello,  
For a few years, I have been working in a project using Imx6sbc, dey 2.4 distribution. I followed the steps in digi documentation to install qt, qtcreator, yocto, I have buildied my own linux image that It’s working in my Imx6sbc board. I build my app that is a big project but I have a problem with my app and touchscreen, In certainly time when I press the touchscreen the app freezes.  
Reading a lot of forums and documentation and debugging the application I think that the problem is in xlib, xlibInput library, that locks the display for some reason. There is a new version of xlib that supposedly fixes this problem.  
When I started to use imx6 digi board I had to install a toolchain to cross-compile qt application. I think that this toolchain is pre-compiled and is installed in /opt/dey2.4/. And the xlib library sources are stored in /opt/dey/2.4/sysroot/cortex9hf-neon-dey-linux-gnuabi/usr/src  
At first, I thought that only changing the files toolchain sysroot was enough and then compiling with qtcreator I would use the xlib new version but I think that I was wrong.  
I think that I have to change the source library files and then re-compile the toolchain but I don’t know how to do It. I think that is with bitbake but I don’t sure how can I do this.  
If someone did this before that can I help me.  
Thanks