diff --git a/maintainers/scripts/gnome-latest.sh b/maintainers/scripts/gnome-latest.sh
new file mode 100755
index 00000000000..00ec1a105da
--- /dev/null
+++ b/maintainers/scripts/gnome-latest.sh
@@ -0,0 +1,105 @@
+#!/bin/sh
+
+GNOME_FTP="ftp.gnome.org/pub/GNOME/sources"
+
+project=$1
+
+if [ "$project" == "--help" ]; then
+  echo "Usage: $0 project [major.minor]"
+  exit 0
+fi
+
+baseVersion=$2
+
+if [ -z "$project" ]; then
+  echo "No project specified, exiting"
+  exit 1
+fi
+
+# curl -l ftp://... doesn't work from my office in HSE, and I don't want to have
+# any conversations with sysadmin. Somehow lftp works.
+if [ "$FTP_CLIENT" = "lftp" ]; then
+  ls_ftp() {
+    lftp -c "open $1; cls"
+  }
+else
+  ls_ftp() {
+    curl -l "$1"/
+  }
+fi
+
+if [ -z "$baseVersion" ]; then
+  echo "Looking for available versions..." >&2
+  available_baseversions=( `ls_ftp ftp://${GNOME_FTP}/${project} | grep '[0-9]\.[0-9]' | sort -t. -k1,1n -k 2,2n` )
+  echo -e "The following versions are available:\n ${available_baseversions[@]}" >&2
+  echo -en "Choose one of them: " >&2
+  read baseVersion
+fi
+
+FTPDIR="${GNOME_FTP}/${project}/${baseVersion}"
+
+#version=`curl -l ${FTPDIR}/ 2>/dev/null | grep LATEST-IS | sed -e s/LATEST-IS-//`
+# gnome's LATEST-IS is broken. Do not trust it.
+
+files=$(ls_ftp "${FTPDIR}")
+declare -A versions
+
+for f in $files; do
+  case $f in
+    (LATEST-IS-*|*.news|*.changes|*.sha256sum|*.diff*):
+      ;;
+    ($project-*.*.9*.tar.*):
+      tmp=${f#$project-}
+      tmp=${tmp%.tar*}
+      echo "Ignored unstable version ${tmp}" >&2
+      ;;
+    ($project-*.tar.*):
+      tmp=${f#$project-}
+      tmp=${tmp%.tar*}
+      versions[${tmp}]=1
+      ;;
+    (*):
+      echo "UNKNOWN FILE $f"
+      ;;
+  esac
+done
+echo "Found versions ${!versions[@]}" >&2
+version=`echo ${!versions[@]} | sed -e 's/ /\n/g' | sort -t. -k1,1n -k 2,2n -k 3,3n | tail -n1`
+echo "Latest version is: ${version}" >&2
+
+name=${project}-${version}
+echo "Fetching .sha256 file" >&2
+curl -O http://${FTPDIR}/${name}.sha256sum
+
+extensions=( "xz" "bz2" "gz" )
+echo "Choosing archive extension (known are ${extensions[@]})..." >&2
+for ext in ${extensions[@]}; do
+  if grep "\\.tar\\.${ext}$" ${name}.sha256sum >& /dev/null; then
+    ext_pref=$ext
+    sha256=$(grep "\\.tar\\.${ext}$" ${name}.sha256sum | cut -f1 -d\ )
+    break
+  fi
+done
+sha256=`nix-hash --to-base32 --type sha256 $sha256`
+echo "Chosen ${ext_pref}, hash is ${sha256}" >&2
+
+cat <<EOF
+  src = fetchurl_gnome {
+    project = "${project}";
+EOF
+echo -n "    major = \"`echo ${version} | cut -d. -f1`\";"
+echo -n " minor = \"`echo ${version} | cut -d. -f2`\";"
+patchlevel=`echo ${version} | cut -d. -f3`
+if [ -n "$patchlevel" ]; then
+  echo -n " patchlevel = \"${patchlevel}\";"
+fi
+if [ "$ext_pref" != "bz2" ]; then
+  echo -n " extension = \"${ext_pref}\";"
+fi
+echo
+cat <<EOF
+    sha256 = "${sha256}";
+  };
+EOF
+
+rm -v ${name}.sha256sum >&2
diff --git a/pkgs/applications/networking/p2p/tribler/default.nix b/pkgs/applications/networking/p2p/tribler/default.nix
index dc08d6ca3eb..afd16dbb2a8 100644
--- a/pkgs/applications/networking/p2p/tribler/default.nix
+++ b/pkgs/applications/networking/p2p/tribler/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchsvn, pythonPackages, makeWrapper, nettools }:
 
-let rev = "22245"; in
+let rev = "22523"; in
 
 stdenv.mkDerivation {
-  name = "tribler-5.4.2-pre${rev}";
+  name = "tribler-5.4.3-pre${rev}";
 
   src = fetchsvn {
     url = http://svn.tribler.org/abc/branches/release-5.4.x;
     inherit rev;
-    sha256 = "09b3iz3yy1dpl30cd2iningzhm1grz6qjgv0qb3wk0v1vxkacddz";
+    sha256 = "09hscrnl50s9qncklnqqzwxwvidl3hj7hr7qsysmv6sw7b9rbx0g";
   };
 
   buildInputs = [ pythonPackages.python pythonPackages.wrapPython makeWrapper ];
diff --git a/pkgs/applications/networking/sync/rsync/default.nix b/pkgs/applications/networking/sync/rsync/default.nix
index 3c84ee56a68..cf770213ef9 100644
--- a/pkgs/applications/networking/sync/rsync/default.nix
+++ b/pkgs/applications/networking/sync/rsync/default.nix
@@ -12,7 +12,8 @@ stdenv.mkDerivation {
     sha256 = "1j77vwz6q3dvgr8w6wvigd5v4m5952czaqdvihr8di13q0b0vq4y";
   };
 
-  buildInputs = [perl] ++ stdenv.lib.optional enableACLs acl;
+  buildInputs = stdenv.lib.optional enableACLs acl;
+  buildNativeInputs = [perl];
 
   meta = {
     homepage = http://samba.anu.edu.au/rsync/;
diff --git a/pkgs/applications/science/electronics/qucs/default.nix b/pkgs/applications/science/electronics/qucs/default.nix
index 1218ad71180..979faa2e597 100644
--- a/pkgs/applications/science/electronics/qucs/default.nix
+++ b/pkgs/applications/science/electronics/qucs/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, qt, libX11}:
+{stdenv, fetchurl, qt3, libX11}:
 
 stdenv.mkDerivation rec {
   name = "qucs-0.0.15";
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "0ggs2nicj8q270l0rbmzg4jc0d0zdxvfsjh4wgww670ma5855xsp";
   };
 
-  buildInputs = [ qt libX11 ];
+  buildInputs = [ qt3 libX11 ];
 
   meta = {
     description = "Integrated circuit simulator";
diff --git a/pkgs/development/libraries/atk/2.1.x.nix b/pkgs/development/libraries/atk/2.1.x.nix
new file mode 100644
index 00000000000..28619a85c03
--- /dev/null
+++ b/pkgs/development/libraries/atk/2.1.x.nix
@@ -0,0 +1,37 @@
+{ stdenv, fetchurl_gnome, pkgconfig, perl, glib, xz }:
+
+stdenv.mkDerivation rec {
+  name = src.pkgname;
+
+  src = fetchurl_gnome {
+    project = "atk";
+    major = "2"; minor = "1"; patchlevel = "5"; extension = "xz";
+    sha256 = "005b9sq8p9ykp4f35b59si3mcbw4p9hyxps1ij4x73p07rrbf0z9";
+  };
+
+  buildNativeInputs = [ pkgconfig perl xz ];
+
+  propagatedBuildInputs = [ glib ];
+
+  postInstall = "rm -rf $out/share/gtk-doc";
+
+  meta = {
+    description = "ATK, the accessibility toolkit";
+
+    longDescription = ''
+      ATK is the Accessibility Toolkit.  It provides a set of generic
+      interfaces allowing accessibility technologies such as screen
+      readers to interact with a graphical user interface.  Using the
+      ATK interfaces, accessibility tools have full access to view and
+      control running applications.
+    '';
+
+    homepage = http://library.gnome.org/devel/atk/;
+
+    license = "LGPLv2+";
+
+    maintainers = with stdenv.lib.maintainers; [ raskin urkud ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+
+}
diff --git a/pkgs/development/libraries/glib/2.29.x.nix b/pkgs/development/libraries/glib/2.29.x.nix
new file mode 100644
index 00000000000..589ec625dcc
--- /dev/null
+++ b/pkgs/development/libraries/glib/2.29.x.nix
@@ -0,0 +1,49 @@
+{ stdenv, fetchurl_gnome, pkgconfig, gettext, perl, libiconv, zlib, xz, libffi
+, python }:
+
+# TODO:
+# * Add gio-module-fam
+#     Problem: cyclic dependency on gamin
+#     Possible solution: build as a standalone module, set env. vars
+# * Make it build without python
+#     Problem: an example (test?) program needs it.
+#     Possible solution: disable compilation of this example somehow
+#     Reminder: add 'sed -e 's@python2\.[0-9]@python@' -i
+#       $out/bin/gtester-report' to postInstall if this is solved
+
+stdenv.mkDerivation rec {
+  name = src.pkgname;
+
+  src = fetchurl_gnome {
+    project = "glib";
+    major = "2"; minor = "29"; patchlevel = "18"; extension = "xz";
+    sha256 = "1hc198x625w1w8if1xlvqyjs9aazc27s0l374kqc4sr51wcpbxpy";
+  };
+
+  # configure script looks for d-bus but it is only needed for tests
+  buildInputs = stdenv.lib.optional (!stdenv.isLinux) libiconv;
+  buildNativeInputs = [ perl pkgconfig gettext xz python ];
+
+  propagatedBuildInputs = [ zlib libffi ];
+
+  # glib buildsystem fails to find python, thus hardcodes python2.4 in #!
+  postInstall = ''rm -rvf $out/share/gtk-doc'';
+
+  meta = {
+    description = "GLib, a C library of programming buildings blocks";
+
+    longDescription = ''
+      GLib provides the core application building blocks for libraries
+      and applications written in C.  It provides the core object
+      system used in GNOME, the main loop implementation, and a large
+      set of utility functions for strings and common data structures.
+    '';
+
+    homepage = http://www.gtk.org/;
+
+    license = "LGPLv2+";
+
+    maintainers = with stdenv.lib.maintainers; [raskin urkud];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}
diff --git a/pkgs/development/libraries/gtk+/3.1.x.nix b/pkgs/development/libraries/gtk+/3.1.x.nix
new file mode 100644
index 00000000000..5b473d44e7e
--- /dev/null
+++ b/pkgs/development/libraries/gtk+/3.1.x.nix
@@ -0,0 +1,55 @@
+{ stdenv, fetchurl_gnome, pkgconfig, glib, atk, pango, cairo, perl, xlibs
+, gdk_pixbuf, xz
+, xineramaSupport ? true
+, cupsSupport ? true, cups ? null
+}:
+
+assert xineramaSupport -> xlibs.libXinerama != null;
+assert cupsSupport -> cups != null;
+
+stdenv.mkDerivation rec {
+  name = src.pkgname;
+
+  src = fetchurl_gnome {
+    project = "gtk+";
+    major = "3"; minor = "1"; patchlevel = "16"; extension = "xz";
+    sha256 = "15arbf75qpchr9wrawb3zkn52rzf5wm2qv4dq10zfzlflimrq2rg";
+  };
+
+  enableParallelBuilding = true;
+
+  buildNativeInputs = [ perl pkgconfig xz ];
+
+  propagatedBuildInputs =
+    [ xlibs.xlibs glib atk pango gdk_pixbuf cairo
+      xlibs.libXrandr xlibs.libXrender xlibs.libXcomposite xlibs.libXi
+    ]
+    ++ stdenv.lib.optional xineramaSupport xlibs.libXinerama
+    ++ stdenv.lib.optionals cupsSupport [ cups ];
+
+  configureFlags = "--with-xinput=yes";
+
+  postInstall = "rm -rf $out/share/gtk-doc";
+
+  meta = {
+    description = "A multi-platform toolkit for creating graphical user interfaces";
+
+    longDescription = ''
+      GTK+ is a highly usable, feature rich toolkit for creating
+      graphical user interfaces which boasts cross platform
+      compatibility and an easy to use API.  GTK+ it is written in C,
+      but has bindings to many other popular programming languages
+      such as C++, Python and C# among others.  GTK+ is licensed
+      under the GNU LGPL 2.1 allowing development of both free and
+      proprietary software with GTK+ without any license fees or
+      royalties.
+    '';
+
+    homepage = http://www.gtk.org/;
+
+    license = "LGPLv2+";
+
+    maintainers = with stdenv.lib.maintainers; [urkud raskin];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}
diff --git a/pkgs/development/libraries/haskell/RSA/default.nix b/pkgs/development/libraries/haskell/RSA/default.nix
index 7476896337c..c5b8efc67f6 100644
--- a/pkgs/development/libraries/haskell/RSA/default.nix
+++ b/pkgs/development/libraries/haskell/RSA/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "RSA";
-  version = "1.0.6.1";
-  sha256 = "1d0birzvapcsgay0wwh5v9mcd77sghj1bps9ws04ww9ga97gyp0l";
+  version = "1.0.6.2";
+  sha256 = "0sabvwzgjg6nv5m3x9cjpk5q62r8vhi3kn858ask15frsi7lzhwk";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ binary pureMD5 random SHA ];
diff --git a/pkgs/development/libraries/haskell/aeson-native/default.nix b/pkgs/development/libraries/haskell/aeson-native/default.nix
index 3ec90bab76d..4b3d8da7bf5 100644
--- a/pkgs/development/libraries/haskell/aeson-native/default.nix
+++ b/pkgs/development/libraries/haskell/aeson-native/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "aeson-native";
-  version = "0.3.3";
-  sha256 = "1ckf0fqx0mdw7467kjk3q48fb4q5w6336i8fxk6j0wfk17xjfs8l";
+  version = "0.3.3.1";
+  sha256 = "15733f5ivymkbwvqgbd8scynl9adva3fnid4bzlr9l4sb3yvcz9p";
   buildDepends = [
     attoparsec blazeBuilder blazeTextualNative deepseq hashable mtl syb
     text time unorderedContainers vector
diff --git a/pkgs/development/libraries/haskell/clientsession/default.nix b/pkgs/development/libraries/haskell/clientsession/default.nix
index 166e261836f..2c577fbc2ef 100644
--- a/pkgs/development/libraries/haskell/clientsession/default.nix
+++ b/pkgs/development/libraries/haskell/clientsession/default.nix
@@ -1,17 +1,16 @@
-{ cabal, base64Bytestring, cereal, cryptoApi, cryptocipher
-, cryptohash
+{ cabal, base64Bytestring, cereal, cryptoApi, cryptocipher, skein
 }:
 
 cabal.mkDerivation (self: {
   pname = "clientsession";
-  version = "0.7.2";
-  sha256 = "0jfpgzfgcmc80qrzxj6dsg6cbd97pscg5yp99c9f58m4igr3fb2q";
+  version = "0.7.3";
+  sha256 = "1f5ri7h8l3v60bj6ywhn2v3kih5lclk76qx7y6jc7nyf9499aja5";
   buildDepends = [
-    base64Bytestring cereal cryptoApi cryptocipher cryptohash
+    base64Bytestring cereal cryptoApi cryptocipher skein
   ];
   meta = {
     homepage = "http://github.com/snoyberg/clientsession/tree/master";
-    description = "Store session data in a cookie";
+    description = "Securely store session data in a client-side cookie";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
     maintainers = [
diff --git a/pkgs/development/libraries/haskell/hakyll/default.nix b/pkgs/development/libraries/haskell/hakyll/default.nix
index f25d1069a58..d9a8b38730a 100644
--- a/pkgs/development/libraries/haskell/hakyll/default.nix
+++ b/pkgs/development/libraries/haskell/hakyll/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "hakyll";
-  version = "3.2.0.6";
-  sha256 = "11jdajciswswv9ciyd6hk7qc39l09y9s528vazxq0k6z5mwvwrbp";
+  version = "3.2.0.7";
+  sha256 = "1p06596yfsa0lk5ipdxm1b8j81aph2k30pm2g6ghw6k7fglklyl5";
   buildDepends = [
     binary blazeHtml cryptohash hamlet mtl pandoc parsec regexBase
     regexPcre snapCore snapServer tagsoup time
diff --git a/pkgs/development/libraries/haskell/hmatrix/default.nix b/pkgs/development/libraries/haskell/hmatrix/default.nix
index e82aff91854..43c66c3d894 100644
--- a/pkgs/development/libraries/haskell/hmatrix/default.nix
+++ b/pkgs/development/libraries/haskell/hmatrix/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "hmatrix";
-  version = "0.12.0.0";
-  sha256 = "1j4c3my6i3xz6b4pyy98722zmgky27ls7a7w13ilwmnhb7pvq9al";
+  version = "0.12.0.1";
+  sha256 = "1lnq1892vzx094d84jfs2477m3w47xgmqvnvzignwgfi470d9lw5";
   buildDepends = [
     binary HUnit QuickCheck random storableComplex vector
   ];
diff --git a/pkgs/development/libraries/haskell/json/default.nix b/pkgs/development/libraries/haskell/json/0.4.4.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/json/default.nix
rename to pkgs/development/libraries/haskell/json/0.4.4.nix
diff --git a/pkgs/development/libraries/haskell/json/0.5.nix b/pkgs/development/libraries/haskell/json/0.5.nix
new file mode 100644
index 00000000000..a748c2b4f58
--- /dev/null
+++ b/pkgs/development/libraries/haskell/json/0.5.nix
@@ -0,0 +1,17 @@
+{ cabal, mtl, parsec, syb }:
+
+cabal.mkDerivation (self: {
+  pname = "json";
+  version = "0.5";
+  sha256 = "12jbvq0lp7z5q6g94pv8s5455yydfyh9h2xlr76wqzfh3myvy6fl";
+  buildDepends = [ mtl parsec syb ];
+  meta = {
+    description = "Support for serialising Haskell to and from JSON";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [
+      self.stdenv.lib.maintainers.andres
+      self.stdenv.lib.maintainers.simons
+    ];
+  };
+})
diff --git a/pkgs/development/libraries/haskell/maude/default.nix b/pkgs/development/libraries/haskell/maude/default.nix
new file mode 100644
index 00000000000..f9d7f68eaf6
--- /dev/null
+++ b/pkgs/development/libraries/haskell/maude/default.nix
@@ -0,0 +1,18 @@
+{ cabal, text }:
+
+cabal.mkDerivation (self: {
+  pname = "maude";
+  version = "0.2.1";
+  sha256 = "10igixljxfrpns2ffvk4g5dsv2pr8p1f7hc65z5x91n6x8zd01vi";
+  buildDepends = [ text ];
+  meta = {
+    homepage = "https://code.google.com/p/maude-hs/";
+    description = "An interface to the Maude rewriting system";
+    license = self.stdenv.lib.licenses.mit;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [
+      self.stdenv.lib.maintainers.andres
+      self.stdenv.lib.maintainers.simons
+    ];
+  };
+})
diff --git a/pkgs/development/libraries/haskell/prolog-graph-lib/default.nix b/pkgs/development/libraries/haskell/prolog-graph-lib/default.nix
new file mode 100644
index 00000000000..5459b8fa6dc
--- /dev/null
+++ b/pkgs/development/libraries/haskell/prolog-graph-lib/default.nix
@@ -0,0 +1,18 @@
+{ cabal, fgl, graphviz, mtl, prolog, text }:
+
+cabal.mkDerivation (self: {
+  pname = "prolog-graph-lib";
+  version = "0.1";
+  sha256 = "1gryhk0jd8bvmjbjkz6n7sfnsa6iwzkckpgi51xsj5f2nwdxbl6g";
+  buildDepends = [ fgl graphviz mtl prolog text ];
+  meta = {
+    homepage = "https://github.com/Erdwolf/prolog";
+    description = "Generating images of resolution trees for Prolog queries";
+    license = self.stdenv.lib.licenses.publicDomain;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [
+      self.stdenv.lib.maintainers.andres
+      self.stdenv.lib.maintainers.simons
+    ];
+  };
+})
diff --git a/pkgs/development/libraries/haskell/prolog-graph/default.nix b/pkgs/development/libraries/haskell/prolog-graph/default.nix
new file mode 100644
index 00000000000..446a430ed7c
--- /dev/null
+++ b/pkgs/development/libraries/haskell/prolog-graph/default.nix
@@ -0,0 +1,23 @@
+{ cabal, cmdargs, fgl, graphviz, mtl, prolog, prologGraphLib, text
+}:
+
+cabal.mkDerivation (self: {
+  pname = "prolog-graph";
+  version = "0.1.0.2";
+  sha256 = "1w3wz0sn1qhw286g3arin30jvlldadw976xr7hp0afdvqicl3892";
+  isLibrary = false;
+  isExecutable = true;
+  buildDepends = [
+    cmdargs fgl graphviz mtl prolog prologGraphLib text
+  ];
+  meta = {
+    homepage = "https://github.com/Erdwolf/prolog";
+    description = "A command line tool to visualize query resolution in Prolog";
+    license = self.stdenv.lib.licenses.publicDomain;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [
+      self.stdenv.lib.maintainers.andres
+      self.stdenv.lib.maintainers.simons
+    ];
+  };
+})
diff --git a/pkgs/development/libraries/haskell/prolog/default.nix b/pkgs/development/libraries/haskell/prolog/default.nix
new file mode 100644
index 00000000000..6702e2e3887
--- /dev/null
+++ b/pkgs/development/libraries/haskell/prolog/default.nix
@@ -0,0 +1,18 @@
+{ cabal, mtl, parsec, syb, thLift, transformers }:
+
+cabal.mkDerivation (self: {
+  pname = "prolog";
+  version = "0.1";
+  sha256 = "00791fb1f84wq42wvacnjl290fbn28x9hknxsic3ksi3f7psladm";
+  buildDepends = [ mtl parsec syb thLift transformers ];
+  meta = {
+    homepage = "https://github.com/Erdwolf/prolog";
+    description = "A Prolog interpreter written in Haskell";
+    license = self.stdenv.lib.licenses.publicDomain;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [
+      self.stdenv.lib.maintainers.andres
+      self.stdenv.lib.maintainers.simons
+    ];
+  };
+})
diff --git a/pkgs/development/libraries/haskell/skein/default.nix b/pkgs/development/libraries/haskell/skein/default.nix
new file mode 100644
index 00000000000..b438e9a7cce
--- /dev/null
+++ b/pkgs/development/libraries/haskell/skein/default.nix
@@ -0,0 +1,13 @@
+{ cabal, cereal, cryptoApi, tagged }:
+
+cabal.mkDerivation (self: {
+  pname = "skein";
+  version = "0.1";
+  sha256 = "10fnhbjdq4vrpl17b27pmxg943wsxv27js6p5nrgyzx9ybmdrmdi";
+  buildDepends = [ cereal cryptoApi tagged ];
+  meta = {
+    description = "Skein, a family of cryptographic hash functions. Includes Skein-MAC as well.";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/system-fileio/default.nix b/pkgs/development/libraries/haskell/system-fileio/default.nix
index 0f29a5f23bd..172489f6b52 100644
--- a/pkgs/development/libraries/haskell/system-fileio/default.nix
+++ b/pkgs/development/libraries/haskell/system-fileio/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "system-fileio";
-  version = "0.3.2";
-  sha256 = "10s0mih3mhpm0mh424kk330680qplwaddffr4rm4cf1bi7gbzrcq";
+  version = "0.3.2.1";
+  sha256 = "0a0vkbj9z5i74g6kkz3n4ffmvinavmnak0zxsx0fck18ppdgv394";
   buildDepends = [ systemFilepath text time ];
   meta = {
     homepage = "https://john-millikin.com/software/hs-fileio/";
diff --git a/pkgs/development/libraries/nss/default.nix b/pkgs/development/libraries/nss/default.nix
index f4ed2381010..ef5cfee5930 100644
--- a/pkgs/development/libraries/nss/default.nix
+++ b/pkgs/development/libraries/nss/default.nix
@@ -27,6 +27,7 @@ stdenv.mkDerivation {
   postPatch = ''
     sed -i -e "/^PREFIX =/s:= /usr:= $out:" \
                 "mozilla/security/nss/config/Makefile"
+    ln -s Linux2.6.mk mozilla/security/coreconf/Linux3.0.mk
   '';
 
   preConfigure = "cd mozilla/security/nss";
diff --git a/pkgs/development/libraries/pango/1.29.x.nix b/pkgs/development/libraries/pango/1.29.x.nix
new file mode 100644
index 00000000000..14dd3d8c5a5
--- /dev/null
+++ b/pkgs/development/libraries/pango/1.29.x.nix
@@ -0,0 +1,37 @@
+{ stdenv, fetchurl_gnome, pkgconfig, gettext, x11, glib, cairo, libpng, xz }:
+
+stdenv.mkDerivation rec {
+  name = src.pkgname;
+
+  src = fetchurl_gnome {
+    project = "pango";
+    major = "1"; minor = "29"; patchlevel = "3"; extension = "xz";
+    sha256 = "0vp88j3ghngkkc4dpya443qng0bb1g86g54bcwf4lf3zmk6r1nmh";
+  };
+
+  buildInputs = stdenv.lib.optional stdenv.isDarwin gettext;
+
+  buildNativeInputs = [ pkgconfig xz ];
+
+  propagatedBuildInputs = [ x11 glib cairo libpng ];
+
+  postInstall = "rm -rf $out/share/gtk-doc";
+
+  meta = {
+    description = "A library for laying out and rendering of text, with an emphasis on internationalization";
+
+    longDescription = ''
+      Pango is a library for laying out and rendering of text, with an
+      emphasis on internationalization.  Pango can be used anywhere
+      that text layout is needed, though most of the work on Pango so
+      far has been done in the context of the GTK+ widget toolkit.
+      Pango forms the core of text and font handling for GTK+-2.x.
+    '';
+
+    homepage = http://www.pango.org/;
+    license = "LGPLv2+";
+
+    maintainers = with stdenv.lib.maintainers; [ raskin urkud ];
+    platforms = stdenv.lib.platforms.all;
+  };
+}
diff --git a/pkgs/development/python-modules/wxPython/2.8.nix b/pkgs/development/python-modules/wxPython/2.8.nix
index d574909d4e2..8819605528d 100644
--- a/pkgs/development/python-modules/wxPython/2.8.nix
+++ b/pkgs/development/python-modules/wxPython/2.8.nix
@@ -2,14 +2,16 @@
 
 assert wxGTK.unicode;
 
+let version = "2.8.12.1"; in
+
 stdenv.mkDerivation {
-  name = "wxPython-2.8.12.0";
+  name = "wxPython-${version}";
   
   builder = ./builder.sh;
   
   src = fetchurl {
-    url = mirror://sourceforge/wxpython/wxPython-src-2.8.12.0.tar.bz2;
-    sha256 = "1gdsk1p8ds4jd00habxy4y8m56247a5s1mvq1lm1r6475dvq4pkd";
+    url = "mirror://sourceforge/wxpython/wxPython-src-${version}.tar.bz2";
+    sha256 = "1l1w4i113csv3bd5r8ybyj0qpxdq83lj6jrc5p7cc10mkwyiagqz";
   };
   
   buildInputs = [ pkgconfig wxGTK (wxGTK.gtk) pythonPackages.python pythonPackages.wrapPython ];
diff --git a/pkgs/development/tools/misc/strace/default.nix b/pkgs/development/tools/misc/strace/default.nix
index a370757b37c..6bd2619e4d3 100644
--- a/pkgs/development/tools/misc/strace/default.nix
+++ b/pkgs/development/tools/misc/strace/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "12n2faqq7whmszpjhv2lcb06r7900j53p0zl7vipi18inr0smycy";
   };
 
-  buildInputs = [ xz perl ];
+  buildNativeInputs = [ xz perl ];
 
   meta = {
     homepage = http://strace.sourceforge.net/;
diff --git a/pkgs/development/tools/parsing/bison/bison-2.5.nix b/pkgs/development/tools/parsing/bison/bison-2.5.nix
index e373a80e46d..24fc0d1bbb3 100644
--- a/pkgs/development/tools/parsing/bison/bison-2.5.nix
+++ b/pkgs/development/tools/parsing/bison/bison-2.5.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "1f1rai3v6k6xjii94964iq0alhc2hxwapqa363nfj8rbxvv0sdqa";
   };
 
-  buildInputs = [ m4 ]
+  buildNativeInputs = [ m4 ]
     ++ stdenv.lib.optional doCheck perl;
 
   doCheck = true;
diff --git a/pkgs/misc/cups/drivers/splix/default.nix b/pkgs/misc/cups/drivers/splix/default.nix
index b832e928bef..532ef2a45d5 100644
--- a/pkgs/misc/cups/drivers/splix/default.nix
+++ b/pkgs/misc/cups/drivers/splix/default.nix
@@ -18,5 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = http://splix.sourceforge.net;
+    platforms = stdenv.lib.platforms.linux;
+    maintainers = [ stdenv.lib.maintainers.simons ];
   };
 }
diff --git a/pkgs/tools/graphics/pfstools/default.nix b/pkgs/tools/graphics/pfstools/default.nix
index 2d9ab632f1c..0c829eab130 100644
--- a/pkgs/tools/graphics/pfstools/default.nix
+++ b/pkgs/tools/graphics/pfstools/default.nix
@@ -1,17 +1,21 @@
-{stdenv, fetchurl, libtiff, openexr, imagemagick, libjpeg, qt, mesa,
-freeglut, bzip2, libX11, libpng, expat }:
+{stdenv, fetchurl, libtiff, openexr, imagemagick, libjpeg, qt4, mesa,
+freeglut, bzip2, libX11, libpng, expat, pkgconfig }:
 
-stdenv.mkDerivation {
-  name = "pfstools-1.8.0";
+stdenv.mkDerivation rec {
+  name = "pfstools-1.8.3";
 
   src = fetchurl {
-    url = mirror://sourceforge/pfstools/pfstools-1.8.0.tar.gz;
-    sha256 = "19gncsfhypiaarsyhmca52yjx8cv86n31b6hxmdac8z4pczhg3gv";
+    url = "mirror://sourceforge/pfstools/${name}.tar.gz";
+    sha256 = "1j3pzwpxvsx9220176bfjallc73jyda61xqkvnmlxqfd3n7ycgx1";
   };
 
-  buildInputs = [ libtiff openexr imagemagick libjpeg qt mesa freeglut
+  configureFlags = "--with-moc=${qt4}/bin/moc";
+
+  buildInputs = [ libtiff openexr imagemagick libjpeg qt4 mesa freeglut
     bzip2 libX11 libpng expat ];
 
+  buildNativeInputs = [ pkgconfig ];
+
   meta = {
     homepage = http://pfstools.sourceforge.net/;
     description = "Toolkit for manipulation of HDR images";
diff --git a/pkgs/tools/graphics/pngcrush/default.nix b/pkgs/tools/graphics/pngcrush/default.nix
new file mode 100644
index 00000000000..caa99d2c4e2
--- /dev/null
+++ b/pkgs/tools/graphics/pngcrush/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, fetchurl, libpng, xz }:
+
+stdenv.mkDerivation rec {
+  name = "pngcrush-1.7.17";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/pmt/${name}-nolib.tar.xz";
+    sha256 = "0lh6wl0ci2y9b690n2zggc1mk21xj6iv378gvxk6gksgjkdw2rj2";
+  };
+
+  configurePhase = ''
+    sed -i s,/usr,$out, Makefile
+  '';
+
+  buildInputs = [ xz libpng ];
+
+  meta = {
+    homepage = http://pmt.sourceforge.net/pngcrush;
+    description = "A PNG optimizer";
+    license = "free";
+    platforms = with stdenv.lib.platforms; linux;
+  };
+}
diff --git a/pkgs/tools/text/qshowdiff/default.nix b/pkgs/tools/text/qshowdiff/default.nix
index ee87bffc672..d033cf4ba6f 100644
--- a/pkgs/tools/text/qshowdiff/default.nix
+++ b/pkgs/tools/text/qshowdiff/default.nix
@@ -1,14 +1,14 @@
-{stdenv, fetchurl, qt, perl}:
+{stdenv, fetchurl, qt4, perl}:
 
 stdenv.mkDerivation rec {
   name = "qshowdiff-1.2";
   
   src = fetchurl {
-    url = http://qshowdiff.danfis.cz/files/qshowdiff-1.2.tar.gz;
+    url = "http://qshowdiff.danfis.cz/files/${name}.tar.gz";
     sha256 = "0i3ssvax4xync9c53jaxribazvh8d8v148l3yiqsfjmqsggw9rh3";
   };
 
-  buildInputs = [ qt perl ];
+  buildInputs = [ qt4 perl ];
 
   configurePhase = ''
     ensureDir $out/{bin,man/man1}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d5ebc8238f4..c38c117e9d0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1147,9 +1147,7 @@ let
     ssh = openssh;
   };
 
-  pfstools = callPackage ../tools/graphics/pfstools {
-    qt = qt3;
-  };
+  pfstools = callPackage ../tools/graphics/pfstools { };
 
   philter = callPackage ../tools/networking/philter { };
 
@@ -1167,6 +1165,8 @@ let
 
   plotutils = callPackage ../tools/graphics/plotutils { };
 
+  pngcrush = callPackage ../tools/graphics/pngcrush { };
+
   pngnq = callPackage ../tools/graphics/pngnq { };
 
   polipo = callPackage ../servers/polipo { };
@@ -1218,9 +1218,7 @@ let
 
   qhull = callPackage ../development/libraries/qhull { };
 
-  qshowdiff = callPackage ../tools/text/qshowdiff {
-    qt = qt4;
-  };
+  qshowdiff = callPackage ../tools/text/qshowdiff { };
 
   radvd = callPackage ../tools/networking/radvd { };
 
@@ -3564,6 +3562,23 @@ let
 
   });
 
+  gtkLibs3x = let callPackage = newScope pkgs.gtkLibs3x; in {
+    glib = callPackage ../development/libraries/glib/2.29.x.nix { };
+
+    gdk_pixbuf = callPackage ../development/libraries/gdk-pixbuf/2.24.x.nix { };
+
+    atk = callPackage ../development/libraries/atk/2.1.x.nix { };
+
+    cairo = callPackage ../development/libraries/cairo { };
+
+    pango = callPackage ../development/libraries/pango/1.29.x.nix { };
+
+    gtk = callPackage ../development/libraries/gtk+/3.1.x.nix { };
+
+    # Let hydra build gtk-3.x but do not show this to users yet
+    recurseForRelease = true;
+  };
+
   gtkmozembedsharp = callPackage ../development/libraries/gtkmozembed-sharp {
     inherit (gnome) gtk;
     gtksharp = gtksharp2;
@@ -8115,9 +8130,7 @@ let
 
   ngspice = callPackage ../applications/science/electronics/ngspice { };
 
-  qucs = callPackage ../applications/science/electronics/qucs {
-    qt = qt3;
-  };
+  qucs = callPackage ../applications/science/electronics/qucs { };
 
   xoscope = callPackage ../applications/science/electronics/xoscope { };
 
@@ -8357,9 +8370,7 @@ let
 
   splix = callPackage ../misc/cups/drivers/splix { };
 
-  tetex = callPackage ../misc/tex/tetex { 
-    libpng = libpng12;
-  };
+  tetex = callPackage ../misc/tex/tetex { };
 
   tex4ht = callPackage ../misc/tex/tex4ht { };
 
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 0b5547db958..777a24e0cbd 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -567,7 +567,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
   fgl_5_4_2_2 = callPackage ../development/libraries/haskell/fgl/5.4.2.2.nix {};
   fgl_5_4_2_3 = callPackage ../development/libraries/haskell/fgl/5.4.2.3.nix {};
   fgl_5_4_2_4 = callPackage ../development/libraries/haskell/fgl/5.4.2.4.nix {};
-  fgl = self.fgl_5_4_2_2;
+  fgl = self.fgl_5_4_2_4;
 
   fingertree = callPackage ../development/libraries/haskell/fingertree {};
 
@@ -634,7 +634,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   Graphalyze = callPackage ../development/libraries/haskell/Graphalyze {};
 
-  graphviz = callPackage ../development/libraries/haskell/graphviz {};
+  graphviz = callPackage ../development/libraries/haskell/graphviz {
+    fgl = self.fgl_5_4_2_4;
+  };
 
   hakyll = callPackage ../development/libraries/haskell/hakyll {
     hamlet = self.hamlet_0_8_2_1;
@@ -793,7 +795,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
     WebBitsHtml = self.WebBitsHtml_1_0_1;
   };
 
-  json = callPackage ../development/libraries/haskell/json/default.nix {};
+  json_0_4_4 = callPackage ../development/libraries/haskell/json/0.4.4.nix {};
+  json_0_5 = callPackage ../development/libraries/haskell/json/0.5.nix {};
+  json = self.json_0_4_4;
 
   jsonEnumerator = callPackage ../development/libraries/haskell/jsonEnumerator {};
 
@@ -813,6 +817,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   logfloat = callPackage ../development/libraries/haskell/logfloat {};
 
+  maude = callPackage ../development/libraries/haskell/maude {};
+
   MaybeT = callPackage ../development/libraries/haskell/MaybeT {};
 
   MemoTrie = callPackage ../development/libraries/haskell/MemoTrie {};
@@ -942,6 +948,14 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   processLeksah = callPackage ../development/libraries/haskell/leksah/process-leksah.nix {};
 
+  prolog = callPackage ../development/libraries/haskell/prolog {};
+  prologGraphLib = callPackage ../development/libraries/haskell/prolog-graph-lib {
+    fgl = self.fgl_5_4_2_4;
+  };
+  prologGraph = callPackage ../development/libraries/haskell/prolog-graph {
+    fgl = self.fgl_5_4_2_4;
+  };
+
   PSQueue = callPackage ../development/libraries/haskell/PSQueue {};
 
   pureMD5 = callPackage ../development/libraries/haskell/pureMD5 {};
@@ -1040,6 +1054,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   simpleSendfile = callPackage ../development/libraries/haskell/simple-sendfile {};
 
+  skein = callPackage ../development/libraries/haskell/skein {};
+
   smallcheck = callPackage ../development/libraries/haskell/smallcheck {};
 
   snapCore = callPackage ../development/libraries/haskell/snap/core.nix {};
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index f16c45551a3..8c8665842a3 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -448,6 +448,15 @@ rec {
     propagatedBuildInputs = [CatalystRuntime DataVisitor ConfigAny MROCompat];
   };
 
+  CatalystPluginUnicodeEncoding = buildPerlPackage rec {
+    name = "Catalyst-Plugin-Unicode-Encoding-1.2";
+    src = fetchurl {
+      url = "mirror://cpan/modules/by-module/Catalyst/${name}.tar.gz";
+      sha256 = "0bz33xnh0wa6py6jz31wr38krad9hcv4gxdsy0lyhqn0k4v6b6dx";
+    };
+    propagatedBuildInputs = [ CatalystRuntime LWP ];
+  };
+
   CatalystPluginHTMLWidget = buildPerlPackage {
     name = "Catalyst-Plugin-HTML-Widget-1.1";
     src = fetchurl {
@@ -762,14 +771,7 @@ rec {
     inherit (pkgs) zlib;
   };
 
-  CompressZlib = buildPerlPackage rec {
-    name = "Compress-Zlib-2.015";
-    src = fetchurl {
-      url = "mirror://cpan/authors/id/P/PM/PMQS/${name}.tar.gz";
-      sha256 = "1k1i539fszhxay8yllh687sw06i68g8ikw51pvy1c84p3kg6yk4v";
-    };
-    propagatedBuildInputs = [ CompressRawZlib IOCompress ];
-  };
+  CompressZlib = IOCompress;
 
   CompressUnLZMA = buildPerlPackage rec {
     name = "Compress-unLZMA-0.04";