View source for Compiz on Debian Unstable

[[File:Compiz-debian-unstable.png|thumb|The compiz cube (+ reflection and deformation) on Debian Unstable.]]
Debian dropped the [https://wiki.debian.org/Compiz Compiz] window manager in the 7.x "wheezy" release. Compiz 8.x is distributed for Debian Jessie by [http://compiz-debian.tuxfamily.org/ tuxfamily.org], based on the [https://github.com/compiz-reloaded compiz-reloaded] releases. As of October 2016, these source packages can be easily patched, built, and run on [[Debian Unstable]]. Compiz 9 seems closely tied to Ubuntu, and I have never successfully run it on Debian.

The tuxfamily packages live at http://download.tuxfamily.org/compiz/debian http://download.tuxfamily.org/compiz/debian. To blindly add their jessie repo, run
<pre>wget -q http://download.tuxfamily.org/compiz/apt/key.pub -O- | \
sudo apt-key add - && \
echo "deb-src http://download.tuxfamily.org/compiz/debian jessie main" | \
sudo tee /etc/apt/sources.list.d/compiz-debian.list && \
sudo apt-get update</pre>

the binary packages cannot generally be installed on sid, and I discourage attempting to do so.

I've built binaries and published them to https://nick-black.com/compiz-unstable, if you'd prefer not to build from source.

==GTK==
I have not successfully built compiz 8 against GTK3 in isolation, due to dependencies on libraries that depend on libgtk-2.0-dev. This is true even if <tt>--with-gtk=3.0</tt> is provided to compiz's configure script via <tt>debian/rules</tt>. GTK includes code to determine whether an object has been linked against both GTK2 and GTK3, aborting if so. If libgtk-3-dev is installed, it will be picked up, even if <tt>--with-gtk=2.0</tt> is provided to compiz's configure script. The build will succeed, but resulting binaries will fail when run. I have only successfully run compiz's <tt>gtk-window-decorator</tt> when built in the absence of libgtk-3-dev.

This implies we must also rebuild mate-desktop, as this is built against GTK3 in unstable, and compiz wants libmate-desktop-dev.

It is probably possible to disable GTK and MATE support, and simply run emerald as one's window decorator.

==Rebuilding MATE==
Acquire the source package mate-desktop, and amend it to build against GTK2.

Here's a [https://nick-black.com/compiz-unstable/mate-desktop-1.16.1.diff diff] against 1.16.1.

==Build compiz==
* Acquire and build compiz. Install the resulting compiz-dev and libdecoration-dev packages.
* Acquire and build libcompizconfig. Install the resulting libcompizconfig-dev package.
* Acquire and build compizconfig-python. Install the resulting python-compizconfig package.
* Acquire and build ccsm. Install the resulting compizconfig-settings-manager package.
* Acquire and build compiz-fusion-bcop. Install the resulting compiz-fusion-bcop package.
* Acquire and build compiz-fusion-plugins-main. Install the resulting compiz-fusion-plugins-main package.
* Optionally, acquire and build compiz-fusion-plugins-extra and compiz-fusion-plugins-unsupported.
* Install the compiz package that resulted from the first step.