Unable to install Tonlib Metal Ubuntu 26.04

Hi there,

I'm struggling since I've upgraded to the latest version of Ubuntu (Kubuntu for that matters), Tonelib Metal would install

Problem

The package ToneLib-Metal-amd64.deb was built with an outdated dependency:

libgl1-mesa-glx (>= 18.0.5)

On modern Ubuntu/Kubuntu releases (24.04+ / 26.04), libgl1-mesa-glx has been removed. Its functionality is now provided by libgl1 and related GLVND/Mesa packages.

As a result, dpkg refused to install the package because it could not satisfy the obsolete dependency.

Solution

I extracted the .deb, edited its dependency list, replaced the obsolete dependency libgl1-mesa-glx (>= 18.0.5) with libgl1, rebuilt the package, and installed the modified package.

Procedure

Create a working directory and extract the package:

Code:

mkdir ~/Downloads/tonelib-patch

Code:

cd ~/Downloads/tonelib-patch

Code:

dpkg-deb -R ../ToneLib-Metal-amd64.deb .

Edit the package control file:

Code:

nano DEBIAN/control

Replace:

libgl1-mesa-glx (>= 18.0.5)
with:

libgl1
Save the file.

Rebuild the package:

Code:

cd ..

Code:

dpkg-deb -b tonelib-patch ToneLib-Metal-fixed.deb

Install the rebuilt package:

Code:

sudo apt install ./ToneLib-Metal-fixed.deb

The application installed successfully and runs normally on Kubuntu 26.04 ! I don't have to boot on Windows for that any longer !!