Arch Linux

To get worked it after all updates you need to:
1. lib32-glibc 2.19-5
2. lib32-libpulse 3.0-1
3. libpulse 3.0-3
4. pulseaudio 3.0-3

To compile old pulseaudio with new json-c you need add before configure:
export LIBJSON_CFLAGS="-I/usr/include/json-c"
export LIBJSON_LIBS="-ljson-c"

And skype2 - working fine (:

@SchnWalter

Skype 4.2.0.13 is here:

https://www.archlinux.org/packages/?sort=-last_update&q=skype&maintainer=&flagged=

Here's a diff (I also renamed the package to skype4):

--- skype2/PKGBUILD 2013-07-09 10:09:30.000000000 +0300
+++ skype4/PKGBUILD 2014-04-23 13:05:22.523769091 +0300
@@ -1,9 +1,9 @@
# Contributor: Piotr Gorski <prgorski88@gmail.com>
# Maintainer: Piotr Gorski <prgorski88@gmail.com>

-pkgname=skype2
-pkgver=2.2.0.35
-pkgrel=5
+pkgname=skype4
+pkgver=4.2.0.13
+pkgrel=6
arch=(i686 x86_64)
pkgdesc="P2P software for high-quality voice communication"
url="http://www.skype.com/"
@@ -29,7 +29,7 @@
fi

source=(http://download.skype.com/linux/skype-$pkgver.tar.bz2 PERMISSION)
-md5sums=('b60a19345ee7b3522b5fe4047150aaf8'
+md5sums=('b4d1dcc5290be92225b400ea877db874'
'26e1772379d4d4df9471b6ed660a6d97')

package() {

Segfaults are caused by a regression in glibc. There's an easy workaround.
https://bbs.archlinux.org/viewtopic.php?pid=1262346#p1262346

same here

all I'm getting are segfaults on 64-bit

Here's a patch: http://pastebin.com/z0JeAE5C

Please change the qt depend to "qt4"
Also, shouldn't this package conflict "skype"?

PKGBUILD needs to be changed to depend on qt4/lib32-qt4

Ok, good to know! Thank you for the information.
So for the latest version enable multilib repository and run:
sudo pacman -S skype

Version 4 is in the multilib repo, and as such there's no need for a skype4 package in AUR.
This package is for people who don't like the new skype version and wants to keep the old one.

Version 4 is here: http://www.skype.com/intl/en/get-skype/on-your-computer/linux/
Would be great if the AUR repos would updated too, so we can enjoy the new Skype client. Thank you in advance!

Sorry about that. Should be working properly now

==> Starting package()...
PKGBUILD: line 36: cd: src/skype2-2.2.0.35: No such file or directory
==> ERROR: A failure occurred in package().
Aborting...
==> ERROR: Makepkg was unable to build skype2.

You should put instead:
cd "$srcdir/skype-$pkgver"