Let’s compile the Mac OS X SecurityTool ourselves
update libwebp to fix giflib incompatibility
isabelle: Correct the 2014 sha value for Linux
isabelle: Remove Linux patches (is this correct?)
isabelle: Another Linux hash change?
Sound of Sorting: New Package

Sound of Sorting is an array-sorting visual+sound demo program.
It shows an array as a list of horizontal bars, and realizes a
step-by-step sorting of it. Moreover, it colorizes and emits a
"8-bit-game-like" sound throughout its execution.

Closes #4341
tmux: wrapped program to set TERMINFO variable

Closes #4335
A simple ADC downloader for upcoming darwin awesomeness

Closes #4327
Higan: adding config.higan.{guiToolkit,profile} options

Now we can parametrize Higan locally.
By default, guiToolkit = "gtk" and profile = "performance" (the accuracy
profile is seriously slow on my machine :) )

Closes #4340
Remove hard-coded /etc from strongswan
Merge branch 'mac-purity' of git://github.com/copumpkin/nixpkgs

Let’s compile the Mac OS X SecurityTool ourselves

copumpkin:

This allows us to compile SecurityTool ourselves. There are several more
Apple opensource projects that can be compiled this way that I'll slowly
add.

Remaining sources of impurity:

Reference to absolute path to Xcode. This should be integrated with the
xcode derivation (and the iOS wrapper chain that exists under mobile
development) but it's not obvious how to do that yet.
Absolute reference to xcodebuild.
Adding this should make it possible for #3629 to work reasonably
cleanly.
rustcMaster: Fix test_override_env and enable tests

We also need to disable parallel building due to rust-lang/rust#16305.

Closes #4339
isabelle: Version 2014 building on Linux and Darwin
lua: Fixed luasql.patch

Closes #4344