Lightweight Tox client that uses Xlib.
Supports many features and is on-par with other Tox clients.

To build with GTK2 support instead of the default GTK3, execute:
    GTK2=yes ./uTox.Slackbuild

Since version 0.13.1, uTox REQUIRES libraries from the c-toxcore
package. Please note c-toxcore's README which recommends removal
of any existing c-toxcore package prior to building.

A patch is used to to update the list of available bootstrap nodes.
This patch can itself be updated at any time by unpacking the
source tarball, cd to the uTox directory and running the commands:
    cp -p src/tox_bootstrap.h src/tox_bootstrap.h.orig
    python3 tools/update-bootstrap.py > src/tox_bootstrap.h
    diff -urN src/tox_bootstrap.h.orig src/tox_bootstrap.h  \
        > path_to_slackbuilds/network/uTox/bootstrap-updates.diff

As an alternative, if you don't mind additional activity during
building, the bootstrap node list can be updated during the build
itself by uncommenting the approriate line (around line 75).
Change:
    #python3 tools/update-bootstrap.py > src/tox_bootstrap.h
to
    python3 tools/update-bootstrap.py > src/tox_bootstrap.h