diff --git a/pkgs/applications/editors/emacs-22/default.nix b/pkgs/applications/editors/emacs-22/default.nix
index 89c8af070e09..4a8369170adf 100644
--- a/pkgs/applications/editors/emacs-22/default.nix
+++ b/pkgs/applications/editors/emacs-22/default.nix
@@ -30,6 +30,16 @@ stdenv.mkDerivation rec {
   configureFlags =
     stdenv.lib.optional gtkGUI "--with-x-toolkit=gtk";
 
+  postInstall = ''
+    cat >$out/share/emacs/site-lisp/site-start.el <<EOF
+;; nixos specific load-path
+(when (getenv "NIX_PROFILES") (setq load-path
+                      (append (reverse (mapcar (lambda (x) (concat x "/share/emacs/site-lisp/"))
+                                               (split-string (getenv "NIX_PROFILES"))))
+                       load-path)))
+EOF
+  '';
+
   meta = {
     description = "GNU Emacs, *the* text editor";
 
diff --git a/pkgs/applications/editors/emacs-23/default.nix b/pkgs/applications/editors/emacs-23/default.nix
index 5de1b38bb41d..84a98182e9f5 100644
--- a/pkgs/applications/editors/emacs-23/default.nix
+++ b/pkgs/applications/editors/emacs-23/default.nix
@@ -31,6 +31,16 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional (stdenv ? glibc)
          [ "--with-crt-dir=${stdenv.glibc}/lib" ];
 
+  postInstall = ''
+    cat >$out/share/emacs/site-lisp/site-start.el <<EOF
+;; nixos specific load-path
+(when (getenv "NIX_PROFILES") (setq load-path
+                      (append (reverse (mapcar (lambda (x) (concat x "/share/emacs/site-lisp/"))
+                                               (split-string (getenv "NIX_PROFILES"))))
+                       load-path)))
+EOF
+  '';
+
   doCheck = true;
 
   meta = {
@@ -56,7 +66,7 @@ stdenv.mkDerivation rec {
     homepage = http://www.gnu.org/software/emacs/;
     license = "GPLv3+";
 
-    maintainers = [ stdenv.lib.maintainers.ludo stdenv.lib.maintainers.simons ];
+    maintainers = with stdenv.lib.maintainers; [ ludo simons chaoflow ];
     platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/applications/editors/emacs-snapshot/default.nix b/pkgs/applications/editors/emacs-snapshot/default.nix
index d190a5809cfc..1ae864336e58 100644
--- a/pkgs/applications/editors/emacs-snapshot/default.nix
+++ b/pkgs/applications/editors/emacs-snapshot/default.nix
@@ -48,6 +48,16 @@ stdenv.mkDerivation {
     ${if gtkGUI then "--with-x-toolkit=gtk --enable-font-backend --with-xft" else ""}
   ";
 
+  postInstall = ''
+    cat >$out/share/emacs/site-lisp/site-start.el <<EOF
+;; nixos specific load-path
+(when (getenv "NIX_PROFILES") (setq load-path
+                      (append (reverse (mapcar (lambda (x) (concat x "/share/emacs/site-lisp/"))
+                                               (split-string (getenv "NIX_PROFILES"))))
+                       load-path)))
+EOF
+  '';
+
   meta = {
     description = "GNU Emacs with Unicode, GTK and Xft support (23.x alpha)";
     homepage = http://www.emacswiki.org/cgi-bin/wiki/XftGnuEmacs;
diff --git a/pkgs/applications/misc/librecad/default.nix b/pkgs/applications/misc/librecad/default.nix
new file mode 100644
index 000000000000..bcf0f1aee792
--- /dev/null
+++ b/pkgs/applications/misc/librecad/default.nix
@@ -0,0 +1,28 @@
+{ stdenv, fetchurl, qt4}:
+
+stdenv.mkDerivation {
+  name = "librecad-1.0.0";
+
+  src = fetchurl {
+    url = https://github.com/LibreCAD/LibreCAD/tarball/v1.0.0;
+    name = "librecad-1.0.0.tar.gz";
+    sha256 = "0s1ikyvy98zz1vw3xf5la73n3sykib6292cmhh2z738ggwigicc9";
+  };
+
+  patchPhase = ''
+    sed -i -e s,/bin/bash,`type -P bash`, scripts/postprocess-unix.sh
+  '';
+
+  configurePhase = "qmake PREFIX=$out";
+
+  # It builds, but it does not install
+  installPhase = "exit 1";
+
+  buildInputs = [ qt4 ];
+
+  meta = {
+    description = "A 2D CAD package based upon Qt";
+    homepage = http://librecad.org;
+    license = "GPLv2";
+  };
+}
diff --git a/pkgs/applications/misc/taskwarrior/unstable.nix b/pkgs/applications/misc/taskwarrior/unstable.nix
index 057ebbe57c53..a50654b28d25 100644
--- a/pkgs/applications/misc/taskwarrior/unstable.nix
+++ b/pkgs/applications/misc/taskwarrior/unstable.nix
@@ -10,7 +10,14 @@ stdenv.mkDerivation {
 
   NIX_LDFLAGS = "-ldl";
 
-  buildInputs = [ cmake lua5 ];
+  buildNativeInputs = [ cmake ];
+  buildInputs = [ lua5 ];
+
+  crossAttrs = {
+    preConfigure = ''
+      export NIX_CROSS_LDFLAGS="$NIX_CROSS_LDFLAGS -ldl"
+    '';
+  };
 
   meta = {
     description = "Command-line todo list manager";
diff --git a/pkgs/build-support/fetchurl/gnome.nix b/pkgs/build-support/fetchurl/gnome.nix
index 616c82036019..258b11d850e5 100644
--- a/pkgs/build-support/fetchurl/gnome.nix
+++ b/pkgs/build-support/fetchurl/gnome.nix
@@ -1,6 +1,6 @@
 { fetchurl }:
 
-{ project, major, minor, patchlevel, extension ? "bz2", sha256 }:
+{ project, major, minor, patchlevel ? null, extension ? "bz2", sha256 }:
 
 let
   baseVersion = "${major}.${minor}";
diff --git a/pkgs/build-support/release/debian-build.nix b/pkgs/build-support/release/debian-build.nix
index 52924d2c42c0..070a54fc945c 100644
--- a/pkgs/build-support/release/debian-build.nix
+++ b/pkgs/build-support/release/debian-build.nix
@@ -11,6 +11,8 @@
   debRequires ? []
 , ... } @ args:
 
+with stdenv.lib;
+
 vmTools.runInLinuxImage (stdenv.mkDerivation (
 
   {
@@ -61,13 +63,15 @@ vmTools.runInLinuxImage (stdenv.mkDerivation (
 
       ${checkinstall}/sbin/checkinstall --nodoc -y -D \
         --fstrans=${if fsTranslation then "yes" else "no"} \
-        --requires="${toString debRequires}" \
-        --provides="${toString debProvides}" \
+        --requires="${concatStringsSep "," debRequires}" \
+        --provides="${concatStringsSep "," debProvides}" \
         make install
 
       ensureDir $out/debs
       find . -name "*.deb" -exec cp {} $out/debs \;
 
+      [ "$(echo $out/debs/*.deb)" != "" ]
+
       for i in $out/debs/*.deb; do
         header "Generated DEB package: $i"
         dpkg-deb --info "$i"
diff --git a/pkgs/development/compilers/mono/default.nix b/pkgs/development/compilers/mono/default.nix
index ee415e3b07b2..471f0d5b36d1 100644
--- a/pkgs/development/compilers/mono/default.nix
+++ b/pkgs/development/compilers/mono/default.nix
@@ -1,10 +1,10 @@
 {stdenv, fetchurl, bison, pkgconfig, glib, gettext, perl}:
 
 stdenv.mkDerivation {
-  name = "mono-2.8";
+  name = "mono-2.10.8.1";
   src = fetchurl {
-    url = http://ftp.novell.com/pub/mono/sources/mono/mono-2.8.tar.bz2;
-    sha256 = "04bivxg90mmihkp72sjshl4ijbjcbl9f6hdgm476zy794g5rwd78";
+    url = http://download.mono-project.com/sources/mono/mono-2.10.8.1.tar.gz;
+    sha256 = "0h4hdj99qg0nsg5260izwaybs59wysf7y399kffhg43fidpndz0x";
   };
 
   buildInputs = [bison pkgconfig glib gettext perl];
diff --git a/pkgs/development/interpreters/lua-5/default.nix b/pkgs/development/interpreters/lua-5/default.nix
index 19a5599347ff..06703e12210d 100644
--- a/pkgs/development/interpreters/lua-5/default.nix
+++ b/pkgs/development/interpreters/lua-5/default.nix
@@ -30,6 +30,7 @@ stdenv.mkDerivation {
         -e "s/ ranlib/$crossConfig-ranlib/" \
         src/Makefile
     '';
+    dontStrip = true;
   };
 
   meta = {
diff --git a/pkgs/misc/ghostscript/default.nix b/pkgs/misc/ghostscript/default.nix
index ddd51f73f79e..c29f7c4456f8 100644
--- a/pkgs/misc/ghostscript/default.nix
+++ b/pkgs/misc/ghostscript/default.nix
@@ -89,7 +89,11 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
+  preBuild = "make so";
+
   postInstall = ''
+    make soinstall
+
     for i in $fonts; do
       (cd $out/share/ghostscript && tar xvfz $i)
     done
diff --git a/pkgs/os-specific/linux/firmware/rt2860/default.nix b/pkgs/os-specific/linux/firmware/rt2860/default.nix
index 70601f065ef4..0c8accd2f6c5 100644
--- a/pkgs/os-specific/linux/firmware/rt2860/default.nix
+++ b/pkgs/os-specific/linux/firmware/rt2860/default.nix
@@ -1,14 +1,17 @@
-{stdenv, fetchurl, unzip}:
+{stdenv, fetchsvn }:
 
-stdenv.mkDerivation rec {
+# Upstream is http://git.kernel.org/?p=linux/kernel/git/firmware/linux-firmware.git
+
+stdenv.mkDerivation {
   name = "rt2860-fw-26";
-  src = fetchurl {
-    url = "http://www.ralinktech.com/download.php?t=U0wyRnpjMlYwY3k4eU1ERXdMekF6THpNeEwyUnZkMjVzYjJGa01UWTBNamsyTVRBNE1pNTZhWEE5UFQxU1ZESTROakJmUm1seWJYZGhjbVZmVmpJMkM%3D";
-    name = "RT2860_Firmware_V26.zip";
-    sha256 = "0kvjd8kfnmh8jj35jd10pnr1z7a00ks4c317dnnzgkd86mmcg4px";
+
+  src = fetchsvn {
+    url = svn://svn.debian.org/kernel/dists/trunk/firmware-nonfree/ralink;
+    rev = 17279;
+    sha256 = "06nc6w3xcrxzcai7gaf27k0v8k2xbq3imzpgc02rbxv5q5flxh65";
   };
 
-  buildInputs = [ unzip ];
+  unpackPhase = "true";
   
   buildPhase = "true";
 
@@ -16,7 +19,11 @@ stdenv.mkDerivation rec {
   # says: "Your rights to redistribute the Software shall be
   # contingent upon your installation of this Agreement in its
   # entirety in the same directory as the Software."
-  installPhase = "ensureDir $out/${name}; cp *.bin $out; cp *.txt $out/${name}";
+  installPhase = ''
+    ensureDir $out
+    cp $src/rt2860.bin $out
+    cp $src/LICENSE $out/rt2860.LICENSE
+  '';
   
   meta = {
     description = "Firmware for the Ralink RT2860 wireless cards";
diff --git a/pkgs/tools/graphics/icoutils/default.nix b/pkgs/tools/graphics/icoutils/default.nix
new file mode 100644
index 000000000000..5abc909ea306
--- /dev/null
+++ b/pkgs/tools/graphics/icoutils/default.nix
@@ -0,0 +1,19 @@
+{ stdenv, fetchurl, libpng }:
+
+stdenv.mkDerivation rec {
+  name = "icoutils-0.29.1";
+
+  src = fetchurl {
+    url = "mirror://savannah/icoutils/${name}.tar.bz2";
+    sha256 = "180yqv41yc3fi6ggx7azhmaciqzadj0ir87wajigmcpgxkjk6v34";
+  };
+
+  buildInputs = [ libpng ];
+
+  meta = {
+    homepage = http://www.nongnu.org/icoutils/;
+    description = "Set of  programs to deal with Microsoft Windows(R) icon and cursor files";
+    license = "GPLv3+";
+    platforms = with stdenv.lib.platforms; linux;
+  };
+}
diff --git a/pkgs/tools/graphics/pngtoico/default.nix b/pkgs/tools/graphics/pngtoico/default.nix
new file mode 100644
index 000000000000..df1046cb750f
--- /dev/null
+++ b/pkgs/tools/graphics/pngtoico/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, fetchurl, libpng }:
+
+stdenv.mkDerivation rec {
+  name = "pngtoico-1.0";
+
+  src = fetchurl {
+    url = mirror://kernel/software/graphics/pngtoico/pngtoico-1.0.tar.gz;
+    sha256 = "1xb4aa57sjvgqfp01br3dm72hf7q0gb2ad144s1ifrs09215fgph";
+  };
+
+  configurePhase = ''
+    sed -i s,/usr/local,$out, Makefile
+  '';
+
+  buildInputs = [ libpng ];
+
+  meta = {
+    homepage = http://www.kernel.org/pub/software/graphics/pngtoico/;
+    description = "Small utility to convert a set of PNG images to Microsoft ICO format";
+    license = "GPLv2+";
+    platforms = with stdenv.lib.platforms; linux;
+  };
+}
diff --git a/pkgs/tools/networking/modemmanager/default.nix b/pkgs/tools/networking/modemmanager/default.nix
new file mode 100644
index 000000000000..c5164d627708
--- /dev/null
+++ b/pkgs/tools/networking/modemmanager/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, fetchurl_gnome, udev, polkit, dbus_glib, ppp, intltool, pkgconfig, xz }:
+
+stdenv.mkDerivation rec {
+  name = src.pkgname;
+
+  src = fetchurl_gnome {
+    project = "ModemManager";
+    major = "0"; minor = "5"; extension = "xz";
+    sha256 = "0zvwrni4l21d856nq28khigrhwgrq5cc7nh45zidwjj8q7bsxiz7";
+  };
+
+  buildNativeInputs = [ xz intltool pkgconfig ];
+
+  buildInputs = [ udev polkit dbus_glib ppp ];
+
+  configureFlags = "--with-polkit --with-udev-base-dir=$(out)/lib/udev";
+
+  meta = {
+    description = "WWAN modem manager, part of NetworkManager";
+    maintainers = [ stdenv.lib.maintainers.urkud ];
+    platforms = [ stdenv.lib.platforms.linux ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 253eb0538a57..203ee98bd8e2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -852,6 +852,8 @@ let
 
   iasl = callPackage ../development/compilers/iasl { };
 
+  icoutils = callPackage ../tools/graphics/icoutils { };
+
   idutils = callPackage ../tools/misc/idutils { };
 
   iftop = callPackage ../tools/networking/iftop { };
@@ -988,6 +990,8 @@ let
 
   mldonkey = callPackage ../applications/networking/p2p/mldonkey { };
 
+  modemmanager = callPackage ../tools/networking/modemmanager {};
+
   monit = builderDefsPackage ../tools/system/monit {
     inherit openssl flex bison;
   };
@@ -1201,6 +1205,8 @@ let
 
   pngnq = callPackage ../tools/graphics/pngnq { };
 
+  pngtoico = callPackage ../tools/graphics/pngtoico { };
+
   polipo = callPackage ../servers/polipo { };
 
   polkit_gnome = callPackage ../tools/security/polkit-gnome { };
@@ -5705,6 +5711,25 @@ let
         #kernelPatches.mips_restart_2_6_36
       ];
   };
+
+  linux_3_2_powertop = linux_3_2.override {
+    extraConfig = ''
+        DEBUG_KERNEL y
+        PM_ADVANCED_DEBUG y
+        PM_RUNTIME y
+        TIMER_STATS y
+        USB_SUSPEND y
+        BACKTRACE_SELF_TEST n
+        CPU_NOTIFIER_ERROR_INJECT n
+        DEBUG_DEVRES n
+        DEBUG_NX_TEST n
+        DEBUG_STACK_USAGE n
+        DEBUG_STACKOVERFLOW n
+        RCU_TORTURE_TEST n
+        SCHEDSTATS n
+    '';
+  };
+
   /* Linux kernel modules are inherently tied to a specific kernel.  So
      rather than provide specific instances of those packages for a
      specific kernel, we have a function that builds those packages
@@ -5854,6 +5879,7 @@ let
   linuxPackages_nanonote_jz_2_6_35 = recurseIntoAttrs (linuxPackagesFor linux_nanonote_jz_2_6_35 pkgs.linuxPackages_nanonote_jz_2_6_35);
   linuxPackages_nanonote_jz_2_6_36 = recurseIntoAttrs (linuxPackagesFor linux_nanonote_jz_2_6_36 pkgs.linuxPackages_nanonote_jz_2_6_36);
   linuxPackages_3_2 = recurseIntoAttrs (linuxPackagesFor linux_3_2 pkgs.linuxPackages_3_2);
+  linuxPackages_3_2_powertop = recurseIntoAttrs (linuxPackagesFor linux_3_2_powertop pkgs.linuxPackages_3_2_powertop);
 
   # The current default kernel / kernel modules.
   linux = linuxPackages.kernel;
@@ -6988,6 +7014,8 @@ let
     inherit (gnome) libglade;
   };
 
+  librecad = callPackage ../applications/misc/librecad { };
+
   lingot = callPackage ../applications/audio/lingot {
     inherit (gnome) libglade;
   };