This only formally fixes the name of the compiler. Theano appears to be
working on darwin after this.

Likely just dependency of `gtkglext` since it is not listed in the readme.

For some reason, --remove-needed does not seem to work with the first patchelf invocation so I had to do it separately.

It was probably just a dependency of `gtkglext` since I cannot find any reference to `pangox` in the repo.

But cannot verify build since it is broken.

gnome-keysign/babel-glade@0.6.1...0.6.2
gnome-keysign/babel-glade@0.6.2...0.6.3

It has been explained to me that cros-omahaproxy reports which
versions are available to users, while cros-updates-serving reports
the latest builds available for each channel.  The latter is probably
better for our use case anyway, and apparently, while both aren't
officially supported, is less likely to randomly break.

So let's use that instead, even if it is much more annoying to parse.

Replaced src munging with a custom unpackPhase because the previous
approach couldn't handle a newly introduced path with a space, and
this is cleaner anyway (but was impossible at the time due to
unpackPhase not being forwarded to fetchcargo).

alacritty: Add -e to tic call following INSTALL.md

pythonPackages.Theano: fix darwin build

openmpt123: 0.4.9 -> 0.4.10

pangox_compat: drop

python27Packages.babelgladeextractor: 0.6.1 -> 0.6.3

slurm: 19.05.4.1 -> 19.05.5.1

gnome3.polari: 3.34.0 -> 3.34.1

quilter: 2.0.3 -> 2.0.4