I would try to install the libgtk2.0-dev package.
- [Trisquel-users] How to install gtk+-2.0 on Trisquel 8 lcotton
- [Trisquel-users] Re : How to install gtk+-2.0 on Trisquel 8 lcerf
- Re: [Trisquel-users] How to install gtk+-2.0 on Trisquel ... lcotton
- [Trisquel-users] Re : How to install gtk+-2.0 on Tris... lcerf
- Re: [Trisquel-users] How to install gtk+-2.0 on Trisquel 8 lcotton
