# Fatal error: gtk/gtkgl.h: No such file or directory

**URL:** <https://forum.opencv.org/t/fatal-error-gtk-gtkgl-h-no-such-file-or-directory/4326>\
**Category:** Uncategorized\
**Tags:** build, gtk\
**Created:** [July 13, 2021, 3:46pm UTC](https://forum.opencv.org/t/fatal-error-gtk-gtkgl-h-no-such-file-or-directory/4326 "2021-07-13T15:46:45Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![jiapei100](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/jiapei100/32/2661_2.png) [@jiapei100](https://forum.opencv.org/u/jiapei100)\
**Post date:** [July 13, 2021, 3:46pm UTC](https://forum.opencv.org/t/fatal-error-gtk-gtkgl-h-no-such-file-or-directory/4326/1 "2021-07-13T15:46:45Z")

</div>

Hi,

I‘m trying to build the NEWEST release OpenCV-4.5.3 today. And I happened to notice:  
whenever I enabled **WITH\_GTK ON** , I got the error:

```auto
fatal error: gtk/gtkgl.h: No such file or directory

```

Did anybody come cross the same issue?

Thank you  
Pei

---

<div class="post-metadata">

**Author:** ![berak](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@berak](https://forum.opencv.org/u/berak)\
**Post date:** [July 13, 2021, 4:44pm UTC](https://forum.opencv.org/t/fatal-error-gtk-gtkgl-h-no-such-file-or-directory/4326/2 "2021-07-13T16:44:00Z")

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is this `WITH_OPENGL=ON` ?

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<div class="post-metadata">

**Author:** ![jiapei100](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/jiapei100/32/2661_2.png) [@jiapei100](https://forum.opencv.org/u/jiapei100)\
**Post date:** [July 17, 2021, 3:32pm UTC](https://forum.opencv.org/t/fatal-error-gtk-gtkgl-h-no-such-file-or-directory/4326/3 "2021-07-17T15:32:56Z")

</div>

@berak

Yes.

```auto
WITH_GTK ON
WITH_OPENGL ON

```

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<div class="post-metadata">

**Author:** ![berak](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@berak](https://forum.opencv.org/u/berak)\
**Post date:** [July 17, 2021, 3:41pm UTC](https://forum.opencv.org/t/fatal-error-gtk-gtkgl-h-no-such-file-or-directory/4326/4 "2021-07-17T15:41:08Z")

</div>

and ? gtk version ?  
does the header exist ?

---

<div class="post-metadata">

**Author:** ![furas](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/furas/32/706_2.png) [@furas](https://forum.opencv.org/u/furas)\
**Post date:** [July 19, 2021, 6:10pm UTC](https://forum.opencv.org/t/fatal-error-gtk-gtkgl-h-no-such-file-or-directory/4326/5 "2021-07-19T18:10:01Z")

</div>

Did you check `'gtk/gtkgl.h'` in Google ?

Google show me link like  
[“fatal error: gtk/gtk.h: No such file or directory” using make](https://askubuntu.com/questions/397432/fatal-error-gtk-gtk-h-no-such-file-or-directory-using-make)  
and for Ubuntu solution can be installation C/C++ headers

```auto
sudo apt-get install libgtk2.0-dev

```

or

```auto
sudo apt-get install libgtk-3-dev

```

Other systems may need something similar.