pkgs/*: remove unreferenced function arguments

author: volth <volth@volth.com> 2018-07-21 00:44:44 +0000
committer: volth <volth@volth.com> 2018-07-21 02:48:04 +0000
commit: 52f53c69ce6dbc5538f7e4cd22f9d93baf1f64a2 (patch)
tree: 2519a24bfee83cad4268e77ac180c84cb4036ed7 /pkgs/applications
parent: 1a6af9f88ec2405334a9fd6a977ccbcb53472305 (diff)
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368 files changed, 409 insertions, 482 deletions
diff --git a/pkgs/applications/altcoins/clightning.nix b/pkgs/applications/altcoins/clightning.nix
index 73cdd3664ea..d7e4ee233a8 100644
--- a/pkgs/applications/altcoins/clightning.nix
+++ b/pkgs/applications/altcoins/clightning.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchpatch, python3, pkgconfig, which, libtool, autoconf, automake,
-  autogen, git, sqlite, gmp, zlib, fetchFromGitHub }:
+{ stdenv, python3, pkgconfig, which, libtool, autoconf, automake,
+  autogen, sqlite, gmp, zlib, fetchFromGitHub }:
 
 with stdenv.lib;
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/altcoins/default.nix b/pkgs/applications/altcoins/default.nix
index 385e9e53522..9f1763087de 100644
--- a/pkgs/applications/altcoins/default.nix
+++ b/pkgs/applications/altcoins/default.nix
@@ -88,5 +88,5 @@ rec {
   parity = callPackage ./parity { };
   parity-ui = callPackage ./parity-ui { };
 
-  particl-core = callPackage ./particl/particl-core.nix { boost = boost165; miniupnpc = miniupnpc_2; withGui = false; };
+  particl-core = callPackage ./particl/particl-core.nix { boost = boost165; miniupnpc = miniupnpc_2; };
 }
diff --git a/pkgs/applications/altcoins/dero.nix b/pkgs/applications/altcoins/dero.nix
index dff7bc0b0dc..8405ea8f842 100644
--- a/pkgs/applications/altcoins/dero.nix
+++ b/pkgs/applications/altcoins/dero.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchFromGitHub, cmake, pkgconfig, unbound, openssl, boost
-, libunwind, lmdb, miniupnpc, readline }:
+, lmdb, miniupnpc, readline }:
 
 stdenv.mkDerivation rec {
   name = "dero-${version}";
diff --git a/pkgs/applications/altcoins/dogecoin.nix b/pkgs/applications/altcoins/dogecoin.nix
index 33c2e598fca..0452f401334 100644
--- a/pkgs/applications/altcoins/dogecoin.nix
+++ b/pkgs/applications/altcoins/dogecoin.nix
@@ -1,7 +1,7 @@
 { stdenv , fetchFromGitHub
 , pkgconfig, autoreconfHook
 , db5, openssl, boost, zlib, miniupnpc
-, glib, protobuf, utillinux, qt4, qrencode
+, protobuf, utillinux, qt4, qrencode
 , withGui }:
 
 with stdenv.lib;
diff --git a/pkgs/applications/altcoins/ethsign/default.nix b/pkgs/applications/altcoins/ethsign/default.nix
index 0659c4fa258..35fd4bc718c 100644
--- a/pkgs/applications/altcoins/ethsign/default.nix
+++ b/pkgs/applications/altcoins/ethsign/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildGoPackage, fetchFromGitHub, fetchgit, clang }:
+{ stdenv, buildGoPackage, fetchFromGitHub, fetchgit }:
 
 buildGoPackage rec {
   name = "ethsign-${version}";
diff --git a/pkgs/applications/altcoins/freicoin.nix b/pkgs/applications/altcoins/freicoin.nix
index b753e2d48c9..1e9192bc6e4 100644
--- a/pkgs/applications/altcoins/freicoin.nix
+++ b/pkgs/applications/altcoins/freicoin.nix
@@ -1,4 +1,4 @@
-{ fetchFromGitHub, stdenv, db, boost, gmp, mpfr, miniupnpc, qt4, qmake4Hook, unzip }:
+{ fetchFromGitHub, stdenv, db, boost, gmp, mpfr, qt4, qmake4Hook }:
 
 stdenv.mkDerivation rec {
   version = "0.8.6-2";
diff --git a/pkgs/applications/altcoins/go-ethereum-classic/default.nix b/pkgs/applications/altcoins/go-ethereum-classic/default.nix
index 679312d9a8e..7461e4c376a 100644
--- a/pkgs/applications/altcoins/go-ethereum-classic/default.nix
+++ b/pkgs/applications/altcoins/go-ethereum-classic/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchgit, fetchhg, fetchbzr, fetchsvn }:
+{ lib, buildGoPackage, fetchgit }:
 
 buildGoPackage rec {
   name = "go-ethereum-classic-${version}";
diff --git a/pkgs/applications/altcoins/go-ethereum.nix b/pkgs/applications/altcoins/go-ethereum.nix
index 79c8e0dfde8..73aa4452c0f 100644
--- a/pkgs/applications/altcoins/go-ethereum.nix
+++ b/pkgs/applications/altcoins/go-ethereum.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub, libobjc, IOKit }:
+{ stdenv, buildGoPackage, fetchFromGitHub, libobjc, IOKit }:
 
 buildGoPackage rec {
   name = "go-ethereum-${version}";
diff --git a/pkgs/applications/altcoins/hevm.nix b/pkgs/applications/altcoins/hevm.nix
index 1aa598f3254..e7f47d0f220 100644
--- a/pkgs/applications/altcoins/hevm.nix
+++ b/pkgs/applications/altcoins/hevm.nix
@@ -5,12 +5,12 @@
 , lens-aeson, memory, monad-par, mtl, optparse-generic, process
 , QuickCheck, quickcheck-text, readline, rosezipper, scientific
 , stdenv, tasty, tasty-hunit, tasty-quickcheck, temporary, text
-, text-format, time, unordered-containers, vector, vty
+, text-format, unordered-containers, vector, vty
 
 , restless-git
 
 , fetchFromGitHub, lib, makeWrapper
-, ncurses, zlib, bzip2, solc, coreutils
+, zlib, bzip2, solc, coreutils
 , bash
 }:
 
diff --git a/pkgs/applications/altcoins/mist.nix b/pkgs/applications/altcoins/mist.nix
index cb8d01467a2..f809b30189f 100644
--- a/pkgs/applications/altcoins/mist.nix
+++ b/pkgs/applications/altcoins/mist.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, makeWrapper, fetchurl, unzip, atomEnv, makeDesktopItem, buildFHSUserEnv }:
+{ stdenv, makeWrapper, fetchurl, unzip, atomEnv, makeDesktopItem, buildFHSUserEnv }:
 
 let
   version = "0.10.0";
diff --git a/pkgs/applications/altcoins/namecoin.nix b/pkgs/applications/altcoins/namecoin.nix
index f7349581169..9af37ff0bca 100644
--- a/pkgs/applications/altcoins/namecoin.nix
+++ b/pkgs/applications/altcoins/namecoin.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, openssl, boost, libevent, autoreconfHook, db4, miniupnpc, eject, pkgconfig, qt4, protobuf, libqrencode
+{ stdenv, fetchFromGitHub, openssl, boost, libevent, autoreconfHook, db4, miniupnpc, eject, pkgconfig, qt4, protobuf, libqrencode
 , withGui }:
 
 with stdenv.lib;
diff --git a/pkgs/applications/altcoins/nano-wallet/default.nix b/pkgs/applications/altcoins/nano-wallet/default.nix
index a14a40e9cc7..76ee914bd3d 100644
--- a/pkgs/applications/altcoins/nano-wallet/default.nix
+++ b/pkgs/applications/altcoins/nano-wallet/default.nix
@@ -1,4 +1,4 @@
-{lib, pkgs, stdenv, fetchFromGitHub, cmake, pkgconfig, boost, libGL, qtbase}:
+{lib, stdenv, fetchFromGitHub, cmake, pkgconfig, boost, libGL, qtbase}:
 
 stdenv.mkDerivation rec {
 
diff --git a/pkgs/applications/altcoins/parity-ui/default.nix b/pkgs/applications/altcoins/parity-ui/default.nix
index b22302d0d39..8566e6037d6 100644
--- a/pkgs/applications/altcoins/parity-ui/default.nix
+++ b/pkgs/applications/altcoins/parity-ui/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, fetchurl, lib, makeWrapper, nodePackages }:
+{ stdenv, pkgs, fetchurl, makeWrapper, nodePackages }:
 
 let
 
diff --git a/pkgs/applications/altcoins/parity-ui/env.nix b/pkgs/applications/altcoins/parity-ui/env.nix
index a273bf33d10..2fd235ade53 100644
--- a/pkgs/applications/altcoins/parity-ui/env.nix
+++ b/pkgs/applications/altcoins/parity-ui/env.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, zlib, glib, alsaLib, dbus, gtk2, atk, pango, freetype, fontconfig
-, libgnome-keyring3, gdk_pixbuf, gvfs, cairo, cups, expat, libgpgerror, nspr
+, libgnome-keyring3, gdk_pixbuf, cairo, cups, expat, libgpgerror, nspr
 , nss, xorg, libcap, systemd, libnotify, libsecret, gnome3 }:
 
 let
diff --git a/pkgs/applications/altcoins/particl/particl-core.nix b/pkgs/applications/altcoins/particl/particl-core.nix
index 5be2bec6c72..331e169cf3f 100644
--- a/pkgs/applications/altcoins/particl/particl-core.nix
+++ b/pkgs/applications/altcoins/particl/particl-core.nix
@@ -4,14 +4,11 @@
 , db48
 , fetchurl
 , libevent
-, libtool
 , miniupnpc
 , openssl
 , pkgconfig
-, utillinux
 , zeromq
 , zlib
-, withGui
 , unixtools
 }:
 
diff --git a/pkgs/applications/altcoins/stellar-core.nix b/pkgs/applications/altcoins/stellar-core.nix
index 4a4665291d6..4c3f9fe0760 100644
--- a/pkgs/applications/altcoins/stellar-core.nix
+++ b/pkgs/applications/altcoins/stellar-core.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchgit, autoconf, libtool, automake, pkgconfig, git
+{ stdenv, fetchgit, autoconf, libtool, automake, pkgconfig, git
 , bison, flex, postgresql }:
 
 let
diff --git a/pkgs/applications/audio/abcde/default.nix b/pkgs/applications/audio/abcde/default.nix
index e672e6f3bae..04ee72edc36 100644
--- a/pkgs/applications/audio/abcde/default.nix
+++ b/pkgs/applications/audio/abcde/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, libcdio-paranoia, cddiscid, wget, bash, which, vorbis-tools, id3v2, eyeD3
-, lame, flac, eject, mkcue, glyr
+{ stdenv, fetchurl, libcdio-paranoia, cddiscid, wget, which, vorbis-tools, id3v2, eyeD3
+, lame, flac, glyr
 , perl, DigestSHA, MusicBrainz, MusicBrainzDiscID
 , makeWrapper }:
 
diff --git a/pkgs/applications/audio/airwave/default.nix b/pkgs/applications/audio/airwave/default.nix
index c37963c77f3..737e73421c9 100644
--- a/pkgs/applications/audio/airwave/default.nix
+++ b/pkgs/applications/audio/airwave/default.nix
@@ -1,5 +1,5 @@
 { stdenv, multiStdenv, cmake, fetchFromGitHub, file, libX11, makeWrapper
-, overrideCC, qt5, requireFile, unzip, wine
+, qt5, requireFile, unzip, wine
 }:
 
 let
diff --git a/pkgs/applications/audio/audacity/default.nix b/pkgs/applications/audio/audacity/default.nix
index b0c47972e38..1989fd1400d 100644
--- a/pkgs/applications/audio/audacity/default.nix
+++ b/pkgs/applications/audio/audacity/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, wxGTK30, pkgconfig, file, gettext, gtk2, glib, zlib, perl, intltool,
-  libogg, libvorbis, libmad, libjack2, lv2, lilv, serd, sord, sratom, suil, alsaLib, libsndfile, soxr, flac, lame,
+{ stdenv, fetchurl, wxGTK30, pkgconfig, file, gettext, gtk2,
+  libvorbis, libmad, libjack2, lv2, lilv, serd, sord, sratom, suil, alsaLib, libsndfile, soxr, flac, lame,
   expat, libid3tag, ffmpeg, soundtouch, /*, portaudio - given up fighting their portaudio.patch */
   autoconf, automake, libtool
   }:
diff --git a/pkgs/applications/audio/banshee/default.nix b/pkgs/applications/audio/banshee/default.nix
index a3ac2b097e9..2479360b88e 100644
--- a/pkgs/applications/audio/banshee/default.nix
+++ b/pkgs/applications/audio/banshee/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, stdenv, lib, fetchurl, intltool, pkgconfig, gstreamer, gst-plugins-base
+{ stdenv, lib, fetchurl, intltool, pkgconfig, gstreamer, gst-plugins-base
 , gst-plugins-good, gst-plugins-bad, gst-plugins-ugly, gst-ffmpeg, glib
 , mono, mono-addins, dbus-sharp-1_0, dbus-sharp-glib-1_0, notify-sharp, gtk-sharp-2_0
 , boo, gdata-sharp, taglib-sharp, sqlite, gnome-sharp, gconf, gtk-sharp-beans, gio-sharp
diff --git a/pkgs/applications/audio/clementine/default.nix b/pkgs/applications/audio/clementine/default.nix
index b8044972576..611828753e4 100644
--- a/pkgs/applications/audio/clementine/default.nix
+++ b/pkgs/applications/audio/clementine/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, fetchpatch, boost, cmake, chromaprint, gettext, gst_all_1, liblastfm
 , qt4, taglib, fftw, glew, qjson, sqlite, libgpod, libplist, usbmuxd, libmtp
 , libpulseaudio, gvfs, libcdio, libechonest, libspotify, pcre, projectm, protobuf
-, qca2, pkgconfig, sparsehash, config, makeWrapper, runCommand, gst_plugins }:
+, qca2, pkgconfig, sparsehash, config, makeWrapper, gst_plugins }:
 
 let
   withIpod = config.clementine.ipod or false;
diff --git a/pkgs/applications/audio/deadbeef/default.nix b/pkgs/applications/audio/deadbeef/default.nix
index 4dced0cfafa..e2fcc3c4626 100644
--- a/pkgs/applications/audio/deadbeef/default.nix
+++ b/pkgs/applications/audio/deadbeef/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, intltool, pkgconfig, fetchpatch, jansson
+{ stdenv, fetchurl, intltool, pkgconfig, jansson
 # deadbeef can use either gtk2 or gtk3
 , gtk2Support ? false, gtk2 ? null
 , gtk3Support ? true, gtk3 ? null, gsettings-desktop-schemas ? null, wrapGAppsHook ? null
diff --git a/pkgs/applications/audio/deadbeef/wrapper.nix b/pkgs/applications/audio/deadbeef/wrapper.nix
index 5b14302204e..cd45ef5926b 100644
--- a/pkgs/applications/audio/deadbeef/wrapper.nix
+++ b/pkgs/applications/audio/deadbeef/wrapper.nix
@@ -1,4 +1,4 @@
-{ stdenv, symlinkJoin, deadbeef, makeWrapper, plugins }:
+{ symlinkJoin, deadbeef, makeWrapper, plugins }:
 
 symlinkJoin {
   name = "deadbeef-with-plugins-${deadbeef.version}";
diff --git a/pkgs/applications/audio/distrho/default.nix b/pkgs/applications/audio/distrho/default.nix
index 5c9211e7f3b..3aa8aa371e6 100644
--- a/pkgs/applications/audio/distrho/default.nix
+++ b/pkgs/applications/audio/distrho/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, alsaLib, fftwSinglePrec, freetype, libjack2
-, libxslt, lv2, pkgconfig, premake3, xorg, ladspa-sdk }:
+, pkgconfig, premake3, xorg, ladspa-sdk }:
 
 stdenv.mkDerivation rec {
   name = "distrho-ports-unstable-2018-01-01";
diff --git a/pkgs/applications/audio/faust/faust2.nix b/pkgs/applications/audio/faust/faust2.nix
index 961ef713569..cfb37e5761a 100644
--- a/pkgs/applications/audio/faust/faust2.nix
+++ b/pkgs/applications/audio/faust/faust2.nix
@@ -3,7 +3,6 @@
 , fetchFromGitHub
 , makeWrapper
 , pkgconfig
-, clang
 , llvm
 , emscripten
 , openssl
diff --git a/pkgs/applications/audio/fmit/default.nix b/pkgs/applications/audio/fmit/default.nix
index f1bdcd8c524..a61f7dc0a90 100644
--- a/pkgs/applications/audio/fmit/default.nix
+++ b/pkgs/applications/audio/fmit/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fftw, freeglut, libGLU, qtbase, qtmultimedia, qmake
+{ stdenv, fetchFromGitHub, fftw, qtbase, qtmultimedia, qmake
 , alsaSupport ? true, alsaLib ? null
 , jackSupport ? false, libjack2 ? null
 , portaudioSupport ? false, portaudio ? null }:
diff --git a/pkgs/applications/audio/gradio/default.nix b/pkgs/applications/audio/gradio/default.nix
index d111502651e..ed34c3118c6 100644
--- a/pkgs/applications/audio/gradio/default.nix
+++ b/pkgs/applications/audio/gradio/default.nix
@@ -1,5 +1,4 @@
 { stdenv, fetchFromGitHub, pkgconfig
-, gcc
 , python3
 , gsettings-desktop-schemas
 , desktop-file-utils
diff --git a/pkgs/applications/audio/gtkpod/default.nix b/pkgs/applications/audio/gtkpod/default.nix
index e0e620bd05f..6546fd7866e 100644
--- a/pkgs/applications/audio/gtkpod/default.nix
+++ b/pkgs/applications/audio/gtkpod/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, pkgconfig, wrapGAppsHook, intltool, libgpod, curl, flac,
-  gnome3, gtk3, glib, gettext, perl, perlXMLParser, flex, libid3tag,
-  libvorbis, hicolor-icon-theme, gdk_pixbuf }:
+  gnome3, gtk3, gettext, perl, perlXMLParser, flex, libid3tag,
+  libvorbis, gdk_pixbuf }:
 
 stdenv.mkDerivation rec {
   version = "2.1.5";
diff --git a/pkgs/applications/audio/jaaa/default.nix b/pkgs/applications/audio/jaaa/default.nix
index cacbf428caa..2410106cff0 100644
--- a/pkgs/applications/audio/jaaa/default.nix
+++ b/pkgs/applications/audio/jaaa/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, alsaLib, libclthreads, libclxclient, libX11, libXft, libXrender, fftwFloat, freetype, fontconfig, libjack2, xorg, zita-alsa-pcmi }:
+{ stdenv, fetchurl, alsaLib, libclthreads, libclxclient, libX11, libXft, libXrender, fftwFloat, libjack2, zita-alsa-pcmi }:
 
 stdenv.mkDerivation rec {
   name = "jaaa-${version}";
diff --git a/pkgs/applications/audio/lastfmsubmitd/default.nix b/pkgs/applications/audio/lastfmsubmitd/default.nix
index 2cb90081c68..e22bca29bc9 100644
--- a/pkgs/applications/audio/lastfmsubmitd/default.nix
+++ b/pkgs/applications/audio/lastfmsubmitd/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pythonPackages }:
+{ fetchurl, pythonPackages }:
 
 pythonPackages.buildPythonApplication rec {
   pname = "lastfmsubmitd";
diff --git a/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix b/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
index d7cc88905c5..740763889ff 100644
--- a/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, callPackage, fetchFromGitHub, faust2jack, faust2lv2, helmholtz, mrpeach, puredata-with-plugins }:
+{ stdenv, fetchFromGitHub, faust2jack, faust2lv2, helmholtz, mrpeach, puredata-with-plugins }:
 stdenv.mkDerivation rec {
   name = "VoiceOfFaust-${version}";
   version = "1.1.4";
diff --git a/pkgs/applications/audio/mikmod/default.nix b/pkgs/applications/audio/mikmod/default.nix
index f077afec8b2..343ec8679fe 100644
--- a/pkgs/applications/audio/mikmod/default.nix
+++ b/pkgs/applications/audio/mikmod/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, libmikmod, ncurses, alsaLib }:
+{ stdenv, fetchurl, libmikmod, ncurses }:
 
 stdenv.mkDerivation rec {
   name = "mikmod-3.2.8";
diff --git a/pkgs/applications/audio/mopidy/mopify.nix b/pkgs/applications/audio/mopidy/mopify.nix
index d55e711cf33..b657f69e26e 100644
--- a/pkgs/applications/audio/mopidy/mopify.nix
+++ b/pkgs/applications/audio/mopidy/mopify.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pythonPackages, mopidy }:
+{ stdenv, pythonPackages, mopidy }:
 
 pythonPackages.buildPythonApplication rec {
   pname = "Mopidy-Mopify";
diff --git a/pkgs/applications/audio/pianobar/default.nix b/pkgs/applications/audio/pianobar/default.nix
index 8e591487111..e21815574d1 100644
--- a/pkgs/applications/audio/pianobar/default.nix
+++ b/pkgs/applications/audio/pianobar/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, pkgconfig, libao, readline, json_c, libgcrypt, libav, curl }:
+{ fetchurl, stdenv, pkgconfig, libao, json_c, libgcrypt, libav, curl }:
 
 stdenv.mkDerivation rec {
   name = "pianobar-2016.06.02";
diff --git a/pkgs/applications/audio/picard/default.nix b/pkgs/applications/audio/picard/default.nix
index 26f35f25865..d7e6173da9a 100644
--- a/pkgs/applications/audio/picard/default.nix
+++ b/pkgs/applications/audio/picard/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, python2Packages, fetchurl, gettext, chromaprint }:
+{ stdenv, python2Packages, fetchurl, gettext }:
 
 let
   pythonPackages = python2Packages;
diff --git a/pkgs/applications/audio/puddletag/default.nix b/pkgs/applications/audio/puddletag/default.nix
index e96b6f1909a..915d7fcbd98 100644
--- a/pkgs/applications/audio/puddletag/default.nix
+++ b/pkgs/applications/audio/puddletag/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, python2Packages, makeWrapper, chromaprint }:
+{ stdenv, fetchFromGitHub, python2Packages, chromaprint }:
 
 python2Packages.buildPythonApplication rec {
   pname = "puddletag";
diff --git a/pkgs/applications/audio/puredata/wrapper.nix b/pkgs/applications/audio/puredata/wrapper.nix
index 9c0a48db51c..80968e2700b 100644
--- a/pkgs/applications/audio/puredata/wrapper.nix
+++ b/pkgs/applications/audio/puredata/wrapper.nix
@@ -1,4 +1,4 @@
-{ stdenv, symlinkJoin, puredata, makeWrapper, plugins }:
+{ symlinkJoin, puredata, makeWrapper, plugins }:
 
 let
 puredataFlags = map (x: "-path ${x}/") plugins;
diff --git a/pkgs/applications/audio/rkrlv2/default.nix b/pkgs/applications/audio/rkrlv2/default.nix
index 28a69d5a3b7..0ff23102e75 100644
--- a/pkgs/applications/audio/rkrlv2/default.nix
+++ b/pkgs/applications/audio/rkrlv2/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, fetchFromGitHub,
+{ stdenv, fetchFromGitHub,
 automake, pkgconfig, lv2, fftw, cmake, xorg, libjack2, libsamplerate, libsndfile
 }:
 
diff --git a/pkgs/applications/audio/sonata/default.nix b/pkgs/applications/audio/sonata/default.nix
index a3d418cd4fe..c5754a199ba 100644
--- a/pkgs/applications/audio/sonata/default.nix
+++ b/pkgs/applications/audio/sonata/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, intltool, wrapGAppsHook
+{ stdenv, fetchFromGitHub, pkgconfig, intltool, wrapGAppsHook
 , python3Packages, gnome3, gtk3, gobjectIntrospection}:
 
 let
diff --git a/pkgs/applications/audio/ympd/default.nix b/pkgs/applications/audio/ympd/default.nix
index 2e335e6b10e..134e5bfb42a 100644
--- a/pkgs/applications/audio/ympd/default.nix
+++ b/pkgs/applications/audio/ympd/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, cmake, llvmPackages, pkgconfig, mpd_clientlib, openssl }:
+{ stdenv, fetchFromGitHub, cmake, pkgconfig, mpd_clientlib, openssl }:
 
 stdenv.mkDerivation rec {
   name = "ympd-${version}";
diff --git a/pkgs/applications/backup/crashplan/default.nix b/pkgs/applications/backup/crashplan/default.nix
index e840c6eeda0..2c76891b3f9 100644
--- a/pkgs/applications/backup/crashplan/default.nix
+++ b/pkgs/applications/backup/crashplan/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, makeWrapper, jre, cpio, gawk, gnugrep, gnused, procps, swt, gtk2, glib, libXtst }:
+{ stdenv, fetchurl, makeWrapper, jre, cpio, gawk, gnugrep, gnused, procps, gtk2, glib, libXtst }:
 
 stdenv.mkDerivation rec {
   version = "4.8.3";
diff --git a/pkgs/applications/display-managers/lightdm/default.nix b/pkgs/applications/display-managers/lightdm/default.nix
index 6ba053499f9..8d3d9c9bfcf 100644
--- a/pkgs/applications/display-managers/lightdm/default.nix
+++ b/pkgs/applications/display-managers/lightdm/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pam, pkgconfig, libxcb, glib, libXdmcp, itstool, libxml2
-, intltool, xlibsWrapper, libxklavier, libgcrypt, audit, coreutils
+, intltool, libxklavier, libgcrypt, audit, coreutils
 , qt4 ? null
 , withQt5 ? false, qtbase
 }:
diff --git a/pkgs/applications/display-managers/sddm/default.nix b/pkgs/applications/display-managers/sddm/default.nix
index 27b23bb571f..5e583049190 100644
--- a/pkgs/applications/display-managers/sddm/default.nix
+++ b/pkgs/applications/display-managers/sddm/default.nix
@@ -1,5 +1,5 @@
-{ mkDerivation, lib, fetchFromGitHub, fetchpatch
-, cmake, extra-cmake-modules, pkgconfig, libxcb, libpthreadstubs, lndir
+{ mkDerivation, lib, fetchFromGitHub
+, cmake, extra-cmake-modules, pkgconfig, libxcb, libpthreadstubs
 , libXdmcp, libXau, qtbase, qtdeclarative, qttools, pam, systemd
 }:
 
diff --git a/pkgs/applications/editors/android-studio/default.nix b/pkgs/applications/editors/android-studio/default.nix
index b7a23b589db..bd0c412efa5 100644
--- a/pkgs/applications/editors/android-studio/default.nix
+++ b/pkgs/applications/editors/android-studio/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, callPackage, fetchurl, makeFontsConf, gnome2 }:
+{ stdenv, callPackage, makeFontsConf, gnome2 }:
 
 let
   mkStudio = opts: callPackage (import ./common.nix opts) {
diff --git a/pkgs/applications/editors/atom/default.nix b/pkgs/applications/editors/atom/default.nix
index 8139640457e..4078efa6783 100644
--- a/pkgs/applications/editors/atom/default.nix
+++ b/pkgs/applications/editors/atom/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, fetchurl, lib, makeWrapper, gvfs, atomEnv}:
+{ stdenv, pkgs, fetchurl, makeWrapper, gvfs, atomEnv}:
 
 let
   common = pname: {version, sha256}: stdenv.mkDerivation rec {
diff --git a/pkgs/applications/editors/atom/env.nix b/pkgs/applications/editors/atom/env.nix
index f93d4042a62..da78c39324a 100644
--- a/pkgs/applications/editors/atom/env.nix
+++ b/pkgs/applications/editors/atom/env.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, zlib, glib, alsaLib, dbus, gtk3, atk, pango, freetype, fontconfig
-, libgnome-keyring3, gdk_pixbuf, gvfs, cairo, cups, expat, libgpgerror, nspr
+, libgnome-keyring3, gdk_pixbuf, cairo, cups, expat, libgpgerror, nspr
 , gconf, nss, xorg, libcap, systemd, libnotify, libsecret
 }:
 
diff --git a/pkgs/applications/editors/brackets/default.nix b/pkgs/applications/editors/brackets/default.nix
index 23cb16c0733..1065564f7b4 100644
--- a/pkgs/applications/editors/brackets/default.nix
+++ b/pkgs/applications/editors/brackets/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, buildEnv, gtk2, glib, gdk_pixbuf, alsaLib, nss, nspr, gconf
-, cups, libgcrypt_1_5, systemd, makeWrapper, dbus }:
+{ stdenv, fetchurl, gtk2, glib, gdk_pixbuf, alsaLib, nss, nspr, gconf
+, cups, libgcrypt_1_5, systemd, dbus }:
 with stdenv.lib;
 
 let
diff --git a/pkgs/applications/editors/dit/default.nix b/pkgs/applications/editors/dit/default.nix
index 03c3c5d5eec..33d80a577db 100644
--- a/pkgs/applications/editors/dit/default.nix
+++ b/pkgs/applications/editors/dit/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchurl, stdenv, coreutils, ncurses, lua }:
+{ fetchurl, stdenv, coreutils, ncurses, lua }:
 
 stdenv.mkDerivation rec {
   name = "dit-${version}";
diff --git a/pkgs/applications/editors/eclipse/default.nix b/pkgs/applications/editors/eclipse/default.nix
index a2d246809c9..c719c7b2da1 100644
--- a/pkgs/applications/editors/eclipse/default.nix
+++ b/pkgs/applications/editors/eclipse/default.nix
@@ -1,8 +1,8 @@
-{ stdenv, lib, fetchurl, makeDesktopItem, makeWrapper
-, freetype, fontconfig, libX11, libXext, libXrender, zlib
+{ stdenv, fetchurl, makeDesktopItem, makeWrapper
+, freetype, fontconfig, libX11, libXrender, zlib
 , glib, gtk3, libXtst, jdk, gsettings-desktop-schemas
 , webkitgtk ? null  # for internal web browser
-, buildEnv, writeText, runCommand
+, buildEnv, runCommand
 , callPackage
 }:
 
diff --git a/pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix b/pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix
index 9585f327821..66ac9a3d77e 100644
--- a/pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix
+++ b/pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix
@@ -1,4 +1,4 @@
-{ clangStdenv, fetchgit, llvmPackages, clang }:
+{ clangStdenv, fetchgit, llvmPackages }:
 
 clangStdenv.mkDerivation {
   name = "emacs-clang-complete-async-20130218";
diff --git a/pkgs/applications/editors/emacs-modes/filesets-plus/default.nix b/pkgs/applications/editors/emacs-modes/filesets-plus/default.nix
index f09a71ec9df..ad22faf3dff 100644
--- a/pkgs/applications/editors/emacs-modes/filesets-plus/default.nix
+++ b/pkgs/applications/editors/emacs-modes/filesets-plus/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, melpaBuild }:
+{ fetchurl, melpaBuild }:
 
 melpaBuild {
   pname = "filesets-plus";
diff --git a/pkgs/applications/editors/emacs-modes/font-lock-plus/default.nix b/pkgs/applications/editors/emacs-modes/font-lock-plus/default.nix
index 5362451e06b..b4ee54f3bd3 100644
--- a/pkgs/applications/editors/emacs-modes/font-lock-plus/default.nix
+++ b/pkgs/applications/editors/emacs-modes/font-lock-plus/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, melpaBuild }:
+{ fetchurl, lib, melpaBuild }:
 
 melpaBuild {
   pname = "font-lock-plus";
diff --git a/pkgs/applications/editors/emacs-modes/header2/default.nix b/pkgs/applications/editors/emacs-modes/header2/default.nix
index 7da40425185..171d8c6b16a 100644
--- a/pkgs/applications/editors/emacs-modes/header2/default.nix
+++ b/pkgs/applications/editors/emacs-modes/header2/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, melpaBuild }:
+{ fetchurl, lib, melpaBuild }:
 
 melpaBuild {
   pname = "header2";
diff --git a/pkgs/applications/editors/emacs-modes/hexrgb/default.nix b/pkgs/applications/editors/emacs-modes/hexrgb/default.nix
index 3144eea702d..8b9ebcd6026 100644
--- a/pkgs/applications/editors/emacs-modes/hexrgb/default.nix
+++ b/pkgs/applications/editors/emacs-modes/hexrgb/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, melpaBuild }:
+{ fetchurl, lib, melpaBuild }:
 
 melpaBuild {
   pname = "hexrgb";
diff --git a/pkgs/applications/editors/emacs-modes/lib-requires/default.nix b/pkgs/applications/editors/emacs-modes/lib-requires/default.nix
index 8e5d5ee1929..84dae10127e 100644
--- a/pkgs/applications/editors/emacs-modes/lib-requires/default.nix
+++ b/pkgs/applications/editors/emacs-modes/lib-requires/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, melpaBuild }:
+{ fetchurl, lib, melpaBuild }:
 
 melpaBuild {
   pname = "lib-requires";
diff --git a/pkgs/applications/editors/emacs-modes/melpa-stable-packages.nix b/pkgs/applications/editors/emacs-modes/melpa-stable-packages.nix
index bf0d5036897..c0febd803cc 100644
--- a/pkgs/applications/editors/emacs-modes/melpa-stable-packages.nix
+++ b/pkgs/applications/editors/emacs-modes/melpa-stable-packages.nix
@@ -13,7 +13,7 @@ To update the list of packages from MELPA,
 
 */
 
-{ lib, external }:
+{ external }:
 
 self:
 
diff --git a/pkgs/applications/editors/emacs-modes/ocaml/default.nix b/pkgs/applications/editors/emacs-modes/ocaml/default.nix
index 7ed6355f981..9f8d408dd5a 100644
--- a/pkgs/applications/editors/emacs-modes/ocaml/default.nix
+++ b/pkgs/applications/editors/emacs-modes/ocaml/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, emacs, ocaml }:
+{ stdenv, emacs, ocaml }:
 
 # this package installs the emacs-mode which
 # resides in the ocaml compiler sources.
diff --git a/pkgs/applications/editors/emacs-modes/org-packages.nix b/pkgs/applications/editors/emacs-modes/org-packages.nix
index 8df45ffb61e..46b90a52a09 100644
--- a/pkgs/applications/editors/emacs-modes/org-packages.nix
+++ b/pkgs/applications/editors/emacs-modes/org-packages.nix
@@ -11,7 +11,7 @@ To update the list of packages from ELPA,
 
 */
 
-{ fetchurl, lib, stdenv, texinfo }:
+{ }:
 
 self:
 
diff --git a/pkgs/applications/editors/emacs-modes/org/default.nix b/pkgs/applications/editors/emacs-modes/org/default.nix
index 1189fd1d6d1..99ecddcb264 100644
--- a/pkgs/applications/editors/emacs-modes/org/default.nix
+++ b/pkgs/applications/editors/emacs-modes/org/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, emacs, texinfo, which, texlive }:
+{ fetchurl, stdenv, emacs, texinfo, texlive }:
 
 stdenv.mkDerivation rec {
   name = "org-8.3.3";
diff --git a/pkgs/applications/editors/emacs-modes/thingatpt-plus/default.nix b/pkgs/applications/editors/emacs-modes/thingatpt-plus/default.nix
index d68feaec293..820919b5321 100644
--- a/pkgs/applications/editors/emacs-modes/thingatpt-plus/default.nix
+++ b/pkgs/applications/editors/emacs-modes/thingatpt-plus/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, melpaBuild }:
+{ fetchurl, lib, melpaBuild }:
 
 melpaBuild {
   pname = "thingatpt-plus";
diff --git a/pkgs/applications/editors/emacs/25.nix b/pkgs/applications/editors/emacs/25.nix
index b659e060e3b..ee21bbbd9bd 100644
--- a/pkgs/applications/editors/emacs/25.nix
+++ b/pkgs/applications/editors/emacs/25.nix
@@ -1,7 +1,7 @@
 { stdenv, lib, fetchurl, ncurses, xlibsWrapper, libXaw, libXpm, Xaw3d
 , pkgconfig, gettext, libXft, dbus, libpng, libjpeg, libungif
 , libtiff, librsvg, gconf, libxml2, imagemagick, gnutls, libselinux
-, alsaLib, cairo, acl, gpm, AppKit, CoreWLAN, Kerberos, GSS, ImageIO
+, alsaLib, cairo, acl, gpm, AppKit, GSS, ImageIO
 , withX ? !stdenv.isDarwin
 , withGTK2 ? false, gtk2 ? null
 , withGTK3 ? true, gtk3 ? null, gsettings-desktop-schemas ? null
diff --git a/pkgs/applications/editors/emacs/default.nix b/pkgs/applications/editors/emacs/default.nix
index 67afdb24cd4..01eaac7be5d 100644
--- a/pkgs/applications/editors/emacs/default.nix
+++ b/pkgs/applications/editors/emacs/default.nix
@@ -1,7 +1,7 @@
 { stdenv, lib, fetchurl, ncurses, xlibsWrapper, libXaw, libXpm, Xaw3d
 , pkgconfig, gettext, libXft, dbus, libpng, libjpeg, libungif
 , libtiff, librsvg, gconf, libxml2, imagemagick, gnutls, libselinux
-, alsaLib, cairo, acl, gpm, AppKit, CoreWLAN, Kerberos, GSS, ImageIO
+, alsaLib, cairo, acl, gpm, AppKit, GSS, ImageIO
 , withX ? !stdenv.isDarwin
 , withGTK2 ? false, gtk2 ? null
 , withGTK3 ? true, gtk3 ? null, gsettings-desktop-schemas ? null
diff --git a/pkgs/applications/editors/jetbrains/common.nix b/pkgs/applications/editors/jetbrains/common.nix
index 7715de15398..f357972c449 100644
--- a/pkgs/applications/editors/jetbrains/common.nix
+++ b/pkgs/applications/editors/jetbrains/common.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, makeDesktopItem, makeWrapper, patchelf, p7zip
-, coreutils, gnugrep, which, git, python, unzip, libsecret
+{ stdenv, makeDesktopItem, makeWrapper, patchelf, p7zip
+, coreutils, gnugrep, which, git, unzip, libsecret
 }:
 
 { name, product, version, src, wmClass, jdk, meta } @ attrs:
diff --git a/pkgs/applications/editors/jetbrains/default.nix b/pkgs/applications/editors/jetbrains/default.nix
index 060d1de5e04..2d7ea931dd2 100644
--- a/pkgs/applications/editors/jetbrains/default.nix
+++ b/pkgs/applications/editors/jetbrains/default.nix
@@ -1,6 +1,6 @@
-{ lib, stdenv, callPackage, fetchurl, makeDesktopItem, makeWrapper, patchelf
-, coreutils, gnugrep, which, git, python, unzip, p7zip
-, androidsdk, jdk, cmake, libxml2, zlib, python3, ncurses
+{ lib, stdenv, callPackage, fetchurl
+, python
+, jdk, cmake, libxml2, zlib, python3, ncurses
 }:
 
 with stdenv.lib;
@@ -10,7 +10,7 @@ let
 
   # Sorted alphabetically
 
-  buildClion = { name, version, src, license, description, wmClass, update-channel }:
+  buildClion = { name, version, src, license, description, wmClass, ... }:
     lib.overrideDerivation (mkJetBrainsProduct rec {
       inherit name version src wmClass jdk;
       product = "CLion";
@@ -66,7 +66,7 @@ let
       '';
     });
 
-  buildDataGrip = { name, version, src, license, description, wmClass, update-channel }:
+  buildDataGrip = { name, version, src, license, description, wmClass, ... }:
     (mkJetBrainsProduct {
       inherit name version src wmClass jdk;
       product = "DataGrip";
@@ -83,7 +83,7 @@ let
       };
     });
 
-  buildGoland = { name, version, src, license, description, wmClass, update-channel }:
+  buildGoland = { name, version, src, license, description, wmClass, ... }:
     lib.overrideDerivation (mkJetBrainsProduct {
       inherit name version src wmClass jdk;
       product = "Goland";
@@ -108,7 +108,7 @@ let
       '';
     });
 
-  buildIdea = { name, version, src, license, description, wmClass, update-channel }:
+  buildIdea = { name, version, src, license, description, wmClass, ... }:
     (mkJetBrainsProduct rec {
       inherit name version src wmClass jdk;
       product = "IDEA";
@@ -125,7 +125,7 @@ let
       };
     });
 
-  buildPhpStorm = { name, version, src, license, description, wmClass, update-channel }:
+  buildPhpStorm = { name, version, src, license, description, wmClass, ... }:
     (mkJetBrainsProduct {
       inherit name version src wmClass jdk;
       product = "PhpStorm";
@@ -142,7 +142,7 @@ let
       };
     });
 
-  buildPycharm = { name, version, src, license, description, wmClass, update-channel }:
+  buildPycharm = { name, version, src, license, description, wmClass, ... }:
     (mkJetBrainsProduct rec {
       inherit name version src wmClass jdk;
       product = "PyCharm";
@@ -169,7 +169,7 @@ let
       propagatedUserEnvPkgs = [ python ];
     };
 
-  buildRider = { name, version, src, license, description, wmClass, update-channel }:
+  buildRider = { name, version, src, license, description, wmClass, ... }:
     lib.overrideDerivation (mkJetBrainsProduct rec {
       inherit name version src wmClass jdk;
       product = "Rider";
@@ -195,7 +195,7 @@ let
       '';
     });
 
-  buildRubyMine = { name, version, src, license, description, wmClass, update-channel }:
+  buildRubyMine = { name, version, src, license, description, wmClass, ... }:
     (mkJetBrainsProduct rec {
       inherit name version src wmClass jdk;
       product = "RubyMine";
@@ -208,7 +208,7 @@ let
       };
     });
 
-  buildWebStorm = { name, version, src, license, description, wmClass, update-channel }:
+  buildWebStorm = { name, version, src, license, description, wmClass, ... }:
     lib.overrideDerivation (mkJetBrainsProduct {
       inherit name version src wmClass jdk;
       product = "WebStorm";
diff --git a/pkgs/applications/editors/jucipp/default.nix b/pkgs/applications/editors/jucipp/default.nix
index 6f5f416f4f5..08918beb8d5 100644
--- a/pkgs/applications/editors/jucipp/default.nix
+++ b/pkgs/applications/editors/jucipp/default.nix
@@ -1,4 +1,4 @@
-{ config, stdenv, fetchgit, makeWrapper, gnome3, at-spi2-core, libcxx,
+{ stdenv, fetchgit, gnome3, at-spi2-core,
   boost, epoxy, cmake, aspell, llvmPackages, libgit2, pkgconfig, pcre,
   libXdmcp, libxkbcommon, libpthreadstubs, wrapGAppsHook, aspellDicts,
   coreutils, glibc, dbus, openssl, libxml2, gnumake, ctags }:
diff --git a/pkgs/applications/editors/kakoune/default.nix b/pkgs/applications/editors/kakoune/default.nix
index 8ef1e549906..83598bd7eb1 100644
--- a/pkgs/applications/editors/kakoune/default.nix
+++ b/pkgs/applications/editors/kakoune/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, ncurses, boost, asciidoc, docbook_xsl, libxslt, pkgconfig }:
+{ stdenv, fetchFromGitHub, ncurses, asciidoc, docbook_xsl, libxslt, pkgconfig }:
 
 with stdenv.lib;
 
diff --git a/pkgs/applications/editors/kodestudio/default.nix b/pkgs/applications/editors/kodestudio/default.nix
index b03abc2146a..4e22e032e35 100644
--- a/pkgs/applications/editors/kodestudio/default.nix
+++ b/pkgs/applications/editors/kodestudio/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, callPackage, fetchurl, makeDesktopItem, makeWrapper
+{ stdenv, lib, fetchurl, makeDesktopItem, makeWrapper
 , # Patchelf dependencies:
   alsaLib, atomEnv, boehmgc, flac, libogg, libvorbis, libXScrnSaver, libGLU_combined
 , openssl, xorg, zlib
diff --git a/pkgs/applications/editors/monodevelop/default.nix b/pkgs/applications/editors/monodevelop/default.nix
index 66112b3498d..69e102f2077 100644
--- a/pkgs/applications/editors/monodevelop/default.nix
+++ b/pkgs/applications/editors/monodevelop/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchgit, fetchNuGet
+{ stdenv, fetchurl
 , autoconf, automake, pkgconfig, shared-mime-info, intltool
 , glib, mono, gtk-sharp-2_0, gnome2, gnome-sharp, unzip
 , dotnetPackages
diff --git a/pkgs/applications/editors/nano/default.nix b/pkgs/applications/editors/nano/default.nix
index fb0ce43a60e..96a9cea09c7 100644
--- a/pkgs/applications/editors/nano/default.nix
+++ b/pkgs/applications/editors/nano/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, hostPlatform, fetchurl, fetchFromGitHub
+{ stdenv, fetchurl, fetchFromGitHub
 , ncurses
 , texinfo
 , gettext ? null
diff --git a/pkgs/applications/editors/neovim/default.nix b/pkgs/applications/editors/neovim/default.nix
index f47688b8280..af454d357e9 100644
--- a/pkgs/applications/editors/neovim/default.nix
+++ b/pkgs/applications/editors/neovim/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchFromGitHub, cmake, gettext, libmsgpack, libtermkey, libiconv
-, libtool, libuv, luaPackages, ncurses, perl, pkgconfig
-, unibilium, vimUtils, xsel, gperf, callPackage
+, libuv, luaPackages, ncurses, pkgconfig
+, unibilium, xsel, gperf
 , libvterm-neovim
 , withJemalloc ? true, jemalloc
 }:
diff --git a/pkgs/applications/editors/neovim/wrapper.nix b/pkgs/applications/editors/neovim/wrapper.nix
index f1ec03cb42e..fa060325559 100644
--- a/pkgs/applications/editors/neovim/wrapper.nix
+++ b/pkgs/applications/editors/neovim/wrapper.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, makeDesktopItem, makeWrapper
+{ stdenv, lib, makeWrapper
 , vimUtils
 , bundlerEnv, ruby
 , pythonPackages
@@ -10,8 +10,7 @@ neovim:
 
 let
   wrapper = {
-    name ? "neovim"
-    , withPython ? true,  extraPythonPackages ? []
+      withPython ? true,  extraPythonPackages ? []
     , withPython3 ? true,  extraPython3Packages ? []
     , withRuby ? true
     , withPyGUI ? false
diff --git a/pkgs/applications/editors/nvpy/default.nix b/pkgs/applications/editors/nvpy/default.nix
index e806e63cdbf..567f4752035 100644
--- a/pkgs/applications/editors/nvpy/default.nix
+++ b/pkgs/applications/editors/nvpy/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, fetchurl, tk, python2Packages }:
+{ pkgs, fetchurl, python2Packages }:
 
 let
   pythonPackages = python2Packages;
diff --git a/pkgs/applications/editors/texmacs/darwin.nix b/pkgs/applications/editors/texmacs/darwin.nix
index e319ccf39b1..dfb2e49e0c8 100644
--- a/pkgs/applications/editors/texmacs/darwin.nix
+++ b/pkgs/applications/editors/texmacs/darwin.nix
@@ -1,4 +1,4 @@
-{ stdenv, callPackage, fetchurl, makeWrapper,
+{ stdenv, callPackage, fetchurl,
   guile_1_8, qt4, zlib, freetype, CoreFoundation, Cocoa, gettext, libiconv, ghostscript,
   tex ? null,
   aspell ? null,
diff --git a/pkgs/applications/editors/tiled/default.nix b/pkgs/applications/editors/tiled/default.nix
index b23db38e0f4..5f9fa850fe6 100644
--- a/pkgs/applications/editors/tiled/default.nix
+++ b/pkgs/applications/editors/tiled/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, pkgconfig, qmake
-, python, qtbase, qttools, zlib }:
+, python, qtbase, qttools }:
 
 stdenv.mkDerivation rec {
   name = "tiled-${version}";
diff --git a/pkgs/applications/editors/typora/default.nix b/pkgs/applications/editors/typora/default.nix
index 082bc2a2536..7777ef1f17c 100644
--- a/pkgs/applications/editors/typora/default.nix
+++ b/pkgs/applications/editors/typora/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, dpkg, lib, glib, dbus, makeWrapper, gnome3, gtk3, atk, cairo, pango
+{ stdenv, fetchurl, dpkg, glib, dbus, makeWrapper, gnome3, gtk3, atk, cairo, pango
 , gdk_pixbuf, freetype, fontconfig, nspr, nss, xorg, alsaLib, cups, expat, udev, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/editors/vim/macvim.nix b/pkgs/applications/editors/vim/macvim.nix
index b6c03a57b56..c97b17bd9af 100644
--- a/pkgs/applications/editors/vim/macvim.nix
+++ b/pkgs/applications/editors/vim/macvim.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, ncurses, gettext
-, pkgconfig, cscope, python, ruby, tcl, perl, luajit
+, pkgconfig, python, ruby, tcl, perl, luajit
 , darwin
 }:
 
diff --git a/pkgs/applications/editors/vscode/default.nix b/pkgs/applications/editors/vscode/default.nix
index cf58d5d2190..3e815642c17 100644
--- a/pkgs/applications/editors/vscode/default.nix
+++ b/pkgs/applications/editors/vscode/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, callPackage, fetchurl, unzip, atomEnv, makeDesktopItem,
+{ stdenv, lib, fetchurl, unzip, atomEnv, makeDesktopItem,
   gtk2, makeWrapper, libXScrnSaver, libxkbfile, libsecret }:
 
 let
diff --git a/pkgs/applications/editors/vscode/with-extensions.nix b/pkgs/applications/editors/vscode/with-extensions.nix
index 9b0d69ae65a..5535d9ab112 100644
--- a/pkgs/applications/editors/vscode/with-extensions.nix
+++ b/pkgs/applications/editors/vscode/with-extensions.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, runCommand, buildEnv, vscode, which, writeScript
+{ stdenv, lib, runCommand, buildEnv, vscode, which, writeScript
 , vscodeExtensions ? [] }:
 
 /*
diff --git a/pkgs/applications/editors/wxhexeditor/default.nix b/pkgs/applications/editors/wxhexeditor/default.nix
index 5597bf0d0b3..c345e8a95d5 100644
--- a/pkgs/applications/editors/wxhexeditor/default.nix
+++ b/pkgs/applications/editors/wxhexeditor/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, wxGTK, autoconf, automake, libtool, python, gettext, bash }:
+{ stdenv, fetchFromGitHub, fetchpatch, wxGTK, autoconf, automake, libtool, python, gettext }:
 
 stdenv.mkDerivation rec {
   name = "wxHexEditor-${version}";
diff --git a/pkgs/applications/gis/qgis/default.nix b/pkgs/applications/gis/qgis/default.nix
index 02e874739ef..c2ead5a1914 100644
--- a/pkgs/applications/gis/qgis/default.nix
+++ b/pkgs/applications/gis/qgis/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, gdal, cmake, qt4, flex, bison, proj, geos, xlibsWrapper, sqlite, gsl
+{ stdenv, fetchurl, gdal, cmake, qt4, flex, bison, proj, geos, xlibsWrapper, sqlite, gsl
 , qwt, fcgi, python2Packages, libspatialindex, libspatialite, qscintilla, postgresql, makeWrapper
 , qjson, qca2, txt2tags, openssl, darwin, pkgconfig
 , withGrass ? true, grass, IOKit, ApplicationServices
diff --git a/pkgs/applications/graphics/ImageMagick/7.0.nix b/pkgs/applications/graphics/ImageMagick/7.0.nix
index 63cf950f02a..86aafa9697d 100644
--- a/pkgs/applications/graphics/ImageMagick/7.0.nix
+++ b/pkgs/applications/graphics/ImageMagick/7.0.nix
@@ -1,8 +1,8 @@
-{ lib, stdenv, fetchFromGitHub, fetchpatch, pkgconfig, libtool
+{ lib, stdenv, fetchFromGitHub, pkgconfig, libtool
 , bzip2, zlib, libX11, libXext, libXt, fontconfig, freetype, ghostscript, libjpeg
 , lcms2, openexr, libpng, librsvg, libtiff, libxml2, openjpeg, libwebp, libheif
 , ApplicationServices
-, buildPlatform, hostPlatform
+, hostPlatform
 }:
 
 let
diff --git a/pkgs/applications/graphics/ImageMagick/default.nix b/pkgs/applications/graphics/ImageMagick/default.nix
index b767f11da00..94a4aeaa933 100644
--- a/pkgs/applications/graphics/ImageMagick/default.nix
+++ b/pkgs/applications/graphics/ImageMagick/default.nix
@@ -2,7 +2,7 @@
 , bzip2, zlib, libX11, libXext, libXt, fontconfig, freetype, ghostscript, libjpeg
 , lcms2, openexr, libpng, librsvg, libtiff, libxml2, openjpeg, libwebp, fftw, libheif, libde265
 , ApplicationServices
-, buildPlatform, hostPlatform
+, hostPlatform
 }:
 
 let
diff --git a/pkgs/applications/graphics/ahoviewer/default.nix b/pkgs/applications/graphics/ahoviewer/default.nix
index 5fb7e007806..53264580380 100644
--- a/pkgs/applications/graphics/ahoviewer/default.nix
+++ b/pkgs/applications/graphics/ahoviewer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, fetchurl, fetchFromGitHub, pkgconfig, libconfig,
+{ stdenv, fetchFromGitHub, pkgconfig, libconfig,
   gtkmm2, glibmm, libxml2, libsecret, curl, libzip,
   librsvg, gst_all_1, autoreconfHook, makeWrapper,
   useUnrar ? false, unrar
diff --git a/pkgs/applications/graphics/avocode/default.nix b/pkgs/applications/graphics/avocode/default.nix
index fbf6443b91f..d427b2586c0 100644
--- a/pkgs/applications/graphics/avocode/default.nix
+++ b/pkgs/applications/graphics/avocode/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, makeDesktopItem, fetchurl, unzip
+{ stdenv, makeDesktopItem, fetchurl, unzip
 , gdk_pixbuf, glib, gtk2, atk, pango, cairo, freetype, fontconfig, dbus, nss, nspr, alsaLib, cups, expat, udev, gnome2
 , xorg, mozjpeg
 }:
diff --git a/pkgs/applications/graphics/awesomebump/default.nix b/pkgs/applications/graphics/awesomebump/default.nix
index f7a813f3606..df742645e86 100644
--- a/pkgs/applications/graphics/awesomebump/default.nix
+++ b/pkgs/applications/graphics/awesomebump/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchgit, qtbase, qmake, makeWrapper, qtscript, gcc, flex, bison, qtdeclarative, gnutar }:
+{ lib, stdenv, fetchgit, qtbase, qmake, makeWrapper, qtscript, flex, bison, qtdeclarative }:
 
 
 let
diff --git a/pkgs/applications/graphics/digikam/default.nix b/pkgs/applications/graphics/digikam/default.nix
index 5c6a4bab930..a31bbe8caeb 100644
--- a/pkgs/applications/graphics/digikam/default.nix
+++ b/pkgs/applications/graphics/digikam/default.nix
@@ -1,4 +1,4 @@
-{ mkDerivation, lib, fetchFromGitHub, cmake, doxygen, extra-cmake-modules, wrapGAppsHook, fetchpatch
+{ mkDerivation, lib, fetchFromGitHub, cmake, doxygen, extra-cmake-modules, wrapGAppsHook
 
 # For `digitaglinktree`
 , perl, sqlite
@@ -35,7 +35,6 @@
 , libusb1
 , marble
 , libGLU_combined
-, mysql
 , opencv3
 , pcre
 , threadweaver
diff --git a/pkgs/applications/graphics/dosage/default.nix b/pkgs/applications/graphics/dosage/default.nix
index 7667b674fce..69d09cd429c 100644
--- a/pkgs/applications/graphics/dosage/default.nix
+++ b/pkgs/applications/graphics/dosage/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pythonPackages, fetchFromGitHub }:
+{ pythonPackages, fetchFromGitHub }:
 
 pythonPackages.buildPythonApplication rec {
   pname = "dosage";
diff --git a/pkgs/applications/graphics/epeg/default.nix b/pkgs/applications/graphics/epeg/default.nix
index 02528a43e31..ef694dec652 100644
--- a/pkgs/applications/graphics/epeg/default.nix
+++ b/pkgs/applications/graphics/epeg/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, libtool, autoconf, automake
+{ stdenv, fetchFromGitHub, pkgconfig, libtool, autoconf, automake
 , libjpeg, libexif
 }:
 
diff --git a/pkgs/applications/graphics/fstl/default.nix b/pkgs/applications/graphics/fstl/default.nix
index 355acf7681a..b1437508a50 100644
--- a/pkgs/applications/graphics/fstl/default.nix
+++ b/pkgs/applications/graphics/fstl/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchFromGitHub, qtbase, mesa_glu, qmake}:
+{stdenv, fetchFromGitHub, qtbase, mesa_glu}:
 stdenv.mkDerivation rec {
   name = "fstl-${version}";
   version = "0.9.3";
diff --git a/pkgs/applications/graphics/glabels/default.nix b/pkgs/applications/graphics/glabels/default.nix
index 2d4fa882dd6..b4715902df1 100644
--- a/pkgs/applications/graphics/glabels/default.nix
+++ b/pkgs/applications/graphics/glabels/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, barcode, gnome3, autoreconfHook
 , gtk3, gtk-doc, libxml2, librsvg , libtool, libe-book
-, intltool, itstool, makeWrapper, pkgconfig, which
+, intltool, itstool, makeWrapper, pkgconfig
 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/graphics/goxel/default.nix b/pkgs/applications/graphics/goxel/default.nix
index 3d49452cbe6..99230eb23e3 100644
--- a/pkgs/applications/graphics/goxel/default.nix
+++ b/pkgs/applications/graphics/goxel/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, scons, pkgconfig, wrapGAppsHook
+{ stdenv, fetchFromGitHub, scons, pkgconfig, wrapGAppsHook
 , glfw3, gtk3, libpng12 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/graphics/graphicsmagick/default.nix b/pkgs/applications/graphics/graphicsmagick/default.nix
index 2c322128c38..ee58e9831e9 100644
--- a/pkgs/applications/graphics/graphicsmagick/default.nix
+++ b/pkgs/applications/graphics/graphicsmagick/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, bzip2, freetype, graphviz, ghostscript
+{ stdenv, fetchurl, bzip2, freetype, graphviz, ghostscript
 , libjpeg, libpng, libtiff, libxml2, zlib, libtool, xz, libX11
 , libwebp, quantumdepth ? 8, fixDarwinDylibNames }:
 
diff --git a/pkgs/applications/graphics/inkscape/default.nix b/pkgs/applications/graphics/inkscape/default.nix
index 639f1928f8a..a82f13ee409 100644
--- a/pkgs/applications/graphics/inkscape/default.nix
+++ b/pkgs/applications/graphics/inkscape/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, pkgconfig, perl, perlXMLParser, libXft
+{ stdenv, fetchurl, pkgconfig, perl, perlXMLParser, libXft
 , libpng, zlib, popt, boehmgc, libxml2, libxslt, glib, gtkmm2
 , glibmm, libsigcxx, lcms, boost, gettext, makeWrapper
 , gsl, python2, poppler, imagemagick, libwpg, librevenge
diff --git a/pkgs/applications/graphics/k3d/default.nix b/pkgs/applications/graphics/k3d/default.nix
index 996d495d87c..3555c2b477f 100644
--- a/pkgs/applications/graphics/k3d/default.nix
+++ b/pkgs/applications/graphics/k3d/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, unzip, ftgl, glew, asciidoc
+{ stdenv, fetchFromGitHub, fetchpatch, ftgl, glew, asciidoc
 , cmake, ninja, libGLU_combined, zlib, python, expat, libxml2, libsigcxx, libuuid, freetype
 , libpng, boost, doxygen, cairomm, pkgconfig, imagemagick, libjpeg, libtiff
 , gettext, intltool, perl, gtkmm2, glibmm, gtkglext, pangox_compat, libXmu }:
diff --git a/pkgs/applications/graphics/kgraphviewer/default.nix b/pkgs/applications/graphics/kgraphviewer/default.nix
index 8f043816ba0..0d898df14b3 100644
--- a/pkgs/applications/graphics/kgraphviewer/default.nix
+++ b/pkgs/applications/graphics/kgraphviewer/default.nix
@@ -1,5 +1,5 @@
 { stdenv, mkDerivation, fetchurl, cmake, extra-cmake-modules, pkgconfig, wrapGAppsHook
-, kconfig, kcrash, kinit, kdoctools, kiconthemes, kio, kparts, kwidgetsaddons
+, kconfig, kinit, kdoctools, kio, kparts, kwidgetsaddons
 , qtbase, qtsvg
 , boost, graphviz
 }:
diff --git a/pkgs/applications/graphics/krita/default.nix b/pkgs/applications/graphics/krita/default.nix
index 1fd19162a4f..ec92638f855 100644
--- a/pkgs/applications/graphics/krita/default.nix
+++ b/pkgs/applications/graphics/krita/default.nix
@@ -1,4 +1,4 @@
-{ mkDerivation, lib, fetchurl, fetchpatch, cmake, extra-cmake-modules
+{ mkDerivation, lib, fetchurl, cmake, extra-cmake-modules
 , karchive, kconfig, kwidgetsaddons, kcompletion, kcoreaddons
 , kguiaddons, ki18n, kitemmodels, kitemviews, kwindowsystem
 , kio, kcrash
diff --git a/pkgs/applications/graphics/nomacs/default.nix b/pkgs/applications/graphics/nomacs/default.nix
index 1103c9ff40a..50862a4583b 100644
--- a/pkgs/applications/graphics/nomacs/default.nix
+++ b/pkgs/applications/graphics/nomacs/default.nix
@@ -1,7 +1,6 @@
 { stdenv
 , fetchFromGitHub
 , cmake
-, makeWrapper
 , pkgconfig
 , wrapGAppsHook
 , gsettings-desktop-schemas
diff --git a/pkgs/applications/graphics/openscad/default.nix b/pkgs/applications/graphics/openscad/default.nix
index 9ab5288700c..44855d5c8b4 100644
--- a/pkgs/applications/graphics/openscad/default.nix
+++ b/pkgs/applications/graphics/openscad/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub, qt5, libsForQt5
+{ stdenv, fetchFromGitHub, qt5, libsForQt5
 , bison, flex, eigen, boost, libGLU_combined, glew, opencsg, cgal
 , mpfr, gmp, glib, pkgconfig, harfbuzz, gettext
 }:
diff --git a/pkgs/applications/graphics/processing3/default.nix b/pkgs/applications/graphics/processing3/default.nix
index 803257d9392..6916ef4ad7a 100644
--- a/pkgs/applications/graphics/processing3/default.nix
+++ b/pkgs/applications/graphics/processing3/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, callPackage, fetchFromGitHub, fetchurl, xmlstarlet, makeWrapper, ant, jdk, rsync, javaPackages, libXxf86vm, gsettings-desktop-schemas }:
+{ stdenv, fetchFromGitHub, fetchurl, xmlstarlet, makeWrapper, ant, jdk, rsync, javaPackages, libXxf86vm, gsettings-desktop-schemas }:
 
 stdenv.mkDerivation rec {
   version = "3.3.7";
diff --git a/pkgs/applications/graphics/sane/backends/generic.nix b/pkgs/applications/graphics/sane/backends/generic.nix
index 2ca1fead84c..0f47c82f032 100644
--- a/pkgs/applications/graphics/sane/backends/generic.nix
+++ b/pkgs/applications/graphics/sane/backends/generic.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl
+{ stdenv
 , avahi, libjpeg, libusb1, libv4l, net_snmp, libpng
 , gettext, pkgconfig
 
diff --git a/pkgs/applications/graphics/scantailor/advanced.nix b/pkgs/applications/graphics/scantailor/advanced.nix
index 29e53683d1c..d55441e39fa 100644
--- a/pkgs/applications/graphics/scantailor/advanced.nix
+++ b/pkgs/applications/graphics/scantailor/advanced.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, makeDesktopItem
+{ stdenv, fetchFromGitHub
 , cmake, libjpeg, libpng, libtiff, boost
 , qtbase, qttools }:
 
diff --git a/pkgs/applications/graphics/screencloud/default.nix b/pkgs/applications/graphics/screencloud/default.nix
index cffe485711f..292ae9c8faa 100644
--- a/pkgs/applications/graphics/screencloud/default.nix
+++ b/pkgs/applications/graphics/screencloud/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub, cmake, qt4, quazip, qt-mobility, qxt, pythonPackages, glib }:
+{ stdenv, fetchFromGitHub, cmake, qt4, quazip, qt-mobility, qxt, pythonPackages }:
 
 with stdenv.lib;
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/graphics/shutter/default.nix b/pkgs/applications/graphics/shutter/default.nix
index 3bc814e1e75..1f41253b699 100644
--- a/pkgs/applications/graphics/shutter/default.nix
+++ b/pkgs/applications/graphics/shutter/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, perl, perlPackages, makeWrapper, imagemagick, gdk_pixbuf, librsvg
+{ stdenv, fetchurl, perl, perlPackages, makeWrapper, imagemagick, gdk_pixbuf, librsvg
 , hicolor-icon-theme
 }:
 
diff --git a/pkgs/applications/graphics/synfigstudio/default.nix b/pkgs/applications/graphics/synfigstudio/default.nix
index 930a7e686f8..63d35cc5453 100644
--- a/pkgs/applications/graphics/synfigstudio/default.nix
+++ b/pkgs/applications/graphics/synfigstudio/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchFromGitHub, boost, cairo, fontsConf, gettext, glibmm, gtk3, gtkmm3
-, libjack2, libsigcxx, libtool, libxmlxx, makeWrapper, mlt-qt5, pango, pkgconfig
+{ stdenv, fetchFromGitHub, boost, cairo, gettext, glibmm, gtk3, gtkmm3
+, libjack2, libsigcxx, libxmlxx, makeWrapper, mlt-qt5, pango, pkgconfig
 , imagemagick, intltool, autoreconfHook, which, defaultIconTheme
 }:
 
diff --git a/pkgs/applications/graphics/write_stylus/default.nix b/pkgs/applications/graphics/write_stylus/default.nix
index a1c39fadb59..231a9799b59 100644
--- a/pkgs/applications/graphics/write_stylus/default.nix
+++ b/pkgs/applications/graphics/write_stylus/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, qtbase, qtsvg,  makeWrapper, fetchurl, makeDesktopItem }:
+{ stdenv, lib, qtbase, qtsvg,  fetchurl, makeDesktopItem }:
 stdenv.mkDerivation rec {
   name = "write_stylus-${version}";
   version = "209";
diff --git a/pkgs/applications/graphics/yed/default.nix b/pkgs/applications/graphics/yed/default.nix
index a8b4038b11f..aa2435c43de 100644
--- a/pkgs/applications/graphics/yed/default.nix
+++ b/pkgs/applications/graphics/yed/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, requireFile, makeWrapper, unzip, jre }:
+{ stdenv, requireFile, makeWrapper, unzip, jre }:
 
 stdenv.mkDerivation rec {
   name = "yEd-${version}";
diff --git a/pkgs/applications/inferno/default.nix b/pkgs/applications/inferno/default.nix
index 3f3c2a32e68..de9be76b6e4 100644
--- a/pkgs/applications/inferno/default.nix
+++ b/pkgs/applications/inferno/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, fetchhg, stdenv, xorg, makeWrapper }:
+{ fetchhg, stdenv, xorg, makeWrapper }:
 
 stdenv.mkDerivation rec {
   # Inferno is a rolling release from a mercurial repository. For the verison number
diff --git a/pkgs/applications/kde/ark/default.nix b/pkgs/applications/kde/ark/default.nix
index fb631414838..598857f2e70 100644
--- a/pkgs/applications/kde/ark/default.nix
+++ b/pkgs/applications/kde/ark/default.nix
@@ -1,5 +1,5 @@
 {
-  mkDerivation, lib, config, makeWrapper,
+  mkDerivation, lib, makeWrapper,
 
   extra-cmake-modules, kdoctools,
 
diff --git a/pkgs/applications/kde/default.nix b/pkgs/applications/kde/default.nix
index 8f64c884931..d839a7141e3 100644
--- a/pkgs/applications/kde/default.nix
+++ b/pkgs/applications/kde/default.nix
@@ -26,8 +26,7 @@ still shows most of the available features is in `./gwenview.nix`.
 */
 
 {
-  stdenv, lib, libsForQt5, fetchurl, recurseIntoAttrs,
-  plasma5, attica, phonon,
+  lib, libsForQt5, fetchurl,
   okteta
 }:
 
diff --git a/pkgs/applications/kde/dolphin.nix b/pkgs/applications/kde/dolphin.nix
index 2570e37bf2c..6a4635c26fb 100644
--- a/pkgs/applications/kde/dolphin.nix
+++ b/pkgs/applications/kde/dolphin.nix
@@ -1,10 +1,10 @@
 {
   mkDerivation, lib,
   extra-cmake-modules, kdoctools,
-  baloo, baloo-widgets, dolphin-plugins, kactivities, kbookmarks, kcmutils,
+  baloo, baloo-widgets, kactivities, kbookmarks, kcmutils,
   kcompletion, kconfig, kcoreaddons, kdelibs4support, kdbusaddons,
   kfilemetadata, ki18n, kiconthemes, kinit, kio, knewstuff, knotifications,
-  konsole, kparts, ktexteditor, kwindowsystem, phonon, solid
+  kparts, ktexteditor, kwindowsystem, phonon, solid
 }:
 
 mkDerivation {
diff --git a/pkgs/applications/kde/kdenlive.nix b/pkgs/applications/kde/kdenlive.nix
index 65080ba7f06..9da12b248c5 100644
--- a/pkgs/applications/kde/kdenlive.nix
+++ b/pkgs/applications/kde/kdenlive.nix
@@ -2,18 +2,13 @@
 , lib
 , extra-cmake-modules
 , kdoctools
-, kactivities
 , kconfig
 , kcrash
 , kguiaddons
 , kiconthemes
 , ki18n
 , kinit
-, kio
-, kio-extras
-, kwindowsystem
 , kdbusaddons
-, plasma-framework
 , knotifications
 , knewstuff
 , karchive
diff --git a/pkgs/applications/kde/libkomparediff2.nix b/pkgs/applications/kde/libkomparediff2.nix
index 52aa2b10e24..cae2aec5668 100644
--- a/pkgs/applications/kde/libkomparediff2.nix
+++ b/pkgs/applications/kde/libkomparediff2.nix
@@ -1,4 +1,4 @@
-{ mkDerivation, lib, extra-cmake-modules, ki18n, kxmlgui, kcodecs, kio }:
+{ mkDerivation, extra-cmake-modules, ki18n, kxmlgui, kcodecs, kio }:
 
 mkDerivation {
   name = "libkomparediff2";
diff --git a/pkgs/applications/kde/pim-data-exporter.nix b/pkgs/applications/kde/pim-data-exporter.nix
index 10123944e3a..d17ffb3c044 100644
--- a/pkgs/applications/kde/pim-data-exporter.nix
+++ b/pkgs/applications/kde/pim-data-exporter.nix
@@ -4,7 +4,7 @@
   akonadi, kcmutils, kcrash, kdbusaddons, kidentitymanagement, kldap,
   kmailtransport, knewstuff, knotifications, knotifyconfig, kparts, kross, ktexteditor,
   kwallet, libkdepim, libkleo, pimcommon, qttools,
-  karchive, mailcommon, messagelib, pim-data-exporter
+  karchive, mailcommon, messagelib
 }:
 
 mkDerivation {
diff --git a/pkgs/applications/kde/pimcommon.nix b/pkgs/applications/kde/pimcommon.nix
index 02e9a47274b..bbbcca13d98 100644
--- a/pkgs/applications/kde/pimcommon.nix
+++ b/pkgs/applications/kde/pimcommon.nix
@@ -2,7 +2,7 @@
   mkDerivation, lib, kdepimTeam,
   extra-cmake-modules, kdoctools,
   akonadi, akonadi-contacts, akonadi-mime, grantlee, karchive, kcodecs,
-  kcompletion, kconfig, kconfigwidgets, kcontacts, kdbusaddons, kdesignerplugin,
+  kcompletion, kconfig, kconfigwidgets, kcontacts, kdbusaddons,
   kiconthemes, kimap, kio, kitemmodels, kjobwidgets, knewstuff, kpimtextedit,
   kwallet, kwindowsystem, libkdepim, qtwebengine
 }:
diff --git a/pkgs/applications/misc/acbuild/default.nix b/pkgs/applications/misc/acbuild/default.nix
index 319764ae81a..c1b8a7eb866 100644
--- a/pkgs/applications/misc/acbuild/default.nix
+++ b/pkgs/applications/misc/acbuild/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, go, fetchFromGitHub }:
+{ stdenv, go, fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
   name = "acbuild-${version}";
diff --git a/pkgs/applications/misc/alacritty/default.nix b/pkgs/applications/misc/alacritty/default.nix
index 698485fb086..09da61f3464 100644
--- a/pkgs/applications/misc/alacritty/default.nix
+++ b/pkgs/applications/misc/alacritty/default.nix
@@ -9,7 +9,6 @@
   freetype,
   fontconfig,
   libX11,
-  gperf,
   libXcursor,
   libXxf86vm,
   libXi,
diff --git a/pkgs/applications/misc/bashSnippets/default.nix b/pkgs/applications/misc/bashSnippets/default.nix
index acd5ae7dd73..fc5fa4d0300 100644
--- a/pkgs/applications/misc/bashSnippets/default.nix
+++ b/pkgs/applications/misc/bashSnippets/default.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, fetchFromGitHub, makeWrapper
-, curl, netcat, python, bind, iproute, bc, gitMinimal }:
+, curl, python, bind, iproute, bc, gitMinimal }:
 let
   version = "1.17.3";
   deps = lib.makeBinPath [
diff --git a/pkgs/applications/misc/calibre/default.nix b/pkgs/applications/misc/calibre/default.nix
index 1aabbb587eb..8e553af5250 100644
--- a/pkgs/applications/misc/calibre/default.nix
+++ b/pkgs/applications/misc/calibre/default.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchurl, fetchpatch, poppler_utils, pkgconfig, libpng
+{ stdenv, fetchurl, poppler_utils, pkgconfig, libpng
 , imagemagick, libjpeg, fontconfig, podofo, qtbase, qmake, icu, sqlite
-, makeWrapper, unrarSupport ? false, chmlib, python2Packages, xz, libusb1, libmtp
+, makeWrapper, unrarSupport ? false, chmlib, python2Packages, libusb1, libmtp
 , xdg_utils, makeDesktopItem, wrapGAppsHook
 }:
 
diff --git a/pkgs/applications/misc/cataract/default.nix b/pkgs/applications/misc/cataract/default.nix
index 83292a76c5d..3a9f2028922 100644
--- a/pkgs/applications/misc/cataract/default.nix
+++ b/pkgs/applications/misc/cataract/default.nix
@@ -1,13 +1,4 @@
-{ callPackage
-, stdenv
-, fetchgit
-, autoconf
-, automake
-, glib
-, pkgconfig
-, libxml2
-, exiv2
-, imagemagick }:
+{ callPackage }:
 
 callPackage ./build.nix {
   version = "1.1.0";
diff --git a/pkgs/applications/misc/cataract/unstable.nix b/pkgs/applications/misc/cataract/unstable.nix
index 8d8b063e48b..397aed355a9 100644
--- a/pkgs/applications/misc/cataract/unstable.nix
+++ b/pkgs/applications/misc/cataract/unstable.nix
@@ -1,13 +1,4 @@
-{ callPackage
-, stdenv
-, fetchgit
-, autoconf
-, automake
-, glib
-, pkgconfig
-, libxml2
-, exiv2
-, imagemagick }:
+{ callPackage }:
 
 callPackage ./build.nix {
   version = "unstable-2016-10-18";
diff --git a/pkgs/applications/misc/cherrytree/default.nix b/pkgs/applications/misc/cherrytree/default.nix
index 03709c30373..6bd1cef7c1b 100644
--- a/pkgs/applications/misc/cherrytree/default.nix
+++ b/pkgs/applications/misc/cherrytree/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pythonPackages, gettext, sqlite }:
+{ stdenv, fetchurl, pythonPackages, gettext }:
 
 with stdenv.lib;
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/misc/chirp/default.nix b/pkgs/applications/misc/chirp/default.nix
index 6e0152c71ed..8c57ebead6a 100644
--- a/pkgs/applications/misc/chirp/default.nix
+++ b/pkgs/applications/misc/chirp/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, libxml2Python, libxslt, makeWrapper
-, python, pyserial, pygtk }:
+, pyserial, pygtk }:
 
 stdenv.mkDerivation rec {
   name = "chirp-daily-${version}";
diff --git a/pkgs/applications/misc/dbvisualizer/default.nix b/pkgs/applications/misc/dbvisualizer/default.nix
index 7aa19ffb301..fbeb965df38 100644
--- a/pkgs/applications/misc/dbvisualizer/default.nix
+++ b/pkgs/applications/misc/dbvisualizer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, jre, coreutils, makeWrapper }:
+{ stdenv, fetchurl, jre, makeWrapper }:
 
 stdenv.mkDerivation {
   name = "dbvisualizer-9.5.7";
diff --git a/pkgs/applications/misc/dfilemanager/default.nix b/pkgs/applications/misc/dfilemanager/default.nix
index 53344595f78..6cbdc8ece0c 100644
--- a/pkgs/applications/misc/dfilemanager/default.nix
+++ b/pkgs/applications/misc/dfilemanager/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, cmake, file, qtbase, qttools, qtx11extras, solid }:
+{ stdenv, fetchgit, cmake, file, qtbase, qttools, solid }:
 
 let
   version = "git-2016-01-10";
diff --git a/pkgs/applications/misc/electron-cash/default.nix b/pkgs/applications/misc/electron-cash/default.nix
index 76b61de5608..891222a0f10 100644
--- a/pkgs/applications/misc/electron-cash/default.nix
+++ b/pkgs/applications/misc/electron-cash/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python3Packages, qtbase }:
+{ stdenv, fetchurl, python3Packages }:
 
 let
 
diff --git a/pkgs/applications/misc/electrum/default.nix b/pkgs/applications/misc/electrum/default.nix
index 383f73b6299..ed2f0626e5d 100644
--- a/pkgs/applications/misc/electrum/default.nix
+++ b/pkgs/applications/misc/electrum/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python3, python3Packages, zbar, fetchpatch }:
+{ stdenv, fetchurl, python3, python3Packages, zbar }:
 
 python3Packages.buildPythonApplication rec {
   name = "electrum-${version}";
diff --git a/pkgs/applications/misc/evtest/default.nix b/pkgs/applications/misc/evtest/default.nix
index 73911bab6f6..3d715a1d16b 100644
--- a/pkgs/applications/misc/evtest/default.nix
+++ b/pkgs/applications/misc/evtest/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, autoreconfHook, automake, pkgconfig, libxml2 }:
+{ stdenv, fetchgit, autoreconfHook, pkgconfig, libxml2 }:
 
 stdenv.mkDerivation rec {
   name = "evtest-1.33";
diff --git a/pkgs/applications/misc/far2l/default.nix b/pkgs/applications/misc/far2l/default.nix
index 9ddd39981cc..d8a0c53d9e1 100644
--- a/pkgs/applications/misc/far2l/default.nix
+++ b/pkgs/applications/misc/far2l/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, makeWrapper, cmake, pkgconfig, wxGTK30, glib, pcre, m4, bash,
+{ stdenv, fetchFromGitHub, makeWrapper, cmake, pkgconfig, wxGTK30, glib, pcre, m4, bash,
   xdg_utils, gvfs, zip, unzip, gzip, bzip2, gnutar, p7zip, xz, imagemagick, darwin }:
 
 with stdenv.lib;
diff --git a/pkgs/applications/misc/finalterm/default.nix b/pkgs/applications/misc/finalterm/default.nix
index 93e5d297ffb..2c024b9fe0e 100644
--- a/pkgs/applications/misc/finalterm/default.nix
+++ b/pkgs/applications/misc/finalterm/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, makeWrapper
+{ stdenv, fetchFromGitHub, makeWrapper
 , pkgconfig, cmake, libxml2, vala_0_26, intltool, libmx, gnome3, gtk3, gtk-doc
 , keybinder3, clutter-gtk, libnotify
 , libxkbcommon, xorg, udev
diff --git a/pkgs/applications/misc/gcal/default.nix b/pkgs/applications/misc/gcal/default.nix
index f3f7fe2aacb..a3aebf22733 100644
--- a/pkgs/applications/misc/gcal/default.nix
+++ b/pkgs/applications/misc/gcal/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, ncurses  }:
+{ stdenv, fetchurl, ncurses  }:
 
 stdenv.mkDerivation rec {
   name = "gcal-${version}";
diff --git a/pkgs/applications/misc/golden-cheetah/default.nix b/pkgs/applications/misc/golden-cheetah/default.nix
index efd3bfe73dd..f62eb92ac04 100644
--- a/pkgs/applications/misc/golden-cheetah/default.nix
+++ b/pkgs/applications/misc/golden-cheetah/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl
 , qtbase, qtsvg, qtserialport, qtwebkit, qtmultimedia, qttools, qtconnectivity
-, yacc, flex, zlib, config, qmake, makeWrapper
+, yacc, flex, zlib, qmake, makeWrapper
 }:
 stdenv.mkDerivation rec {
   name = "golden-cheetah-${version}";
diff --git a/pkgs/applications/misc/googleearth/default.nix b/pkgs/applications/misc/googleearth/default.nix
index c77f8658220..9c1b457c299 100644
--- a/pkgs/applications/misc/googleearth/default.nix
+++ b/pkgs/applications/misc/googleearth/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, glibc, libGLU_combined, freetype, glib, libSM, libICE, libXi, libXv
-, libXrender, libXrandr, libXfixes, libXcursor, libXinerama, libXext, libX11, qt4
+, libXrender, libXrandr, libXfixes, libXcursor, libXinerama, libXext, libX11
 , zlib, fontconfig, dpkg, libproxy, libxml2, gstreamer, gst_all_1, dbus }:
 
 let
diff --git a/pkgs/applications/misc/gpsprune/default.nix b/pkgs/applications/misc/gpsprune/default.nix
index 586807b2dd5..6689a3cae10 100644
--- a/pkgs/applications/misc/gpsprune/default.nix
+++ b/pkgs/applications/misc/gpsprune/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, makeDesktopItem, makeWrapper, unzip, bash, jre8 }:
+{ fetchurl, stdenv, makeDesktopItem, makeWrapper, unzip, jre8 }:
 
 stdenv.mkDerivation rec {
   name = "gpsprune-${version}";
diff --git a/pkgs/applications/misc/gpxsee/default.nix b/pkgs/applications/misc/gpxsee/default.nix
index d87ac459d02..ed0dd3ba5be 100644
--- a/pkgs/applications/misc/gpxsee/default.nix
+++ b/pkgs/applications/misc/gpxsee/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, qmake, qtbase, qttools }:
+{ stdenv, fetchFromGitHub, qmake, qttools }:
 
 stdenv.mkDerivation rec {
   name = "gpxsee-${version}";
diff --git a/pkgs/applications/misc/gramps/default.nix b/pkgs/applications/misc/gramps/default.nix
index 50f575d15ce..b4b98909447 100644
--- a/pkgs/applications/misc/gramps/default.nix
+++ b/pkgs/applications/misc/gramps/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, gtk3, pythonPackages, intltool, gnome3,
-  pango, gsettings-desktop-schemas, gobjectIntrospection, wrapGAppsHook,
+  pango, gobjectIntrospection, wrapGAppsHook,
 # Optional packages:
  enableOSM ? true, osm-gps-map
  }:
diff --git a/pkgs/applications/misc/gummi/default.nix b/pkgs/applications/misc/gummi/default.nix
index 5fdb8985bbb..6c84f3cbd32 100644
--- a/pkgs/applications/misc/gummi/default.nix
+++ b/pkgs/applications/misc/gummi/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, pkgs, makeWrapper
+{ stdenv, pkgs, makeWrapper
 , glib, gnome2, gnome3, gtk2-x11, gtkspell2, poppler
 , pkgconfig, intltool, autoreconfHook, wrapGAppsHook
 }:
diff --git a/pkgs/applications/misc/hamster-time-tracker/default.nix b/pkgs/applications/misc/hamster-time-tracker/default.nix
index 105f7beb98f..2abdce45c95 100644
--- a/pkgs/applications/misc/hamster-time-tracker/default.nix
+++ b/pkgs/applications/misc/hamster-time-tracker/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchzip, pythonPackages, docbook2x, libxslt, gnome-doc-utils
-, intltool, dbus-glib, gnome_python, dbus
+, intltool, dbus-glib, gnome_python
 , hicolor-icon-theme
 }:
 
diff --git a/pkgs/applications/misc/haxor-news/default.nix b/pkgs/applications/misc/haxor-news/default.nix
index 624c15e118a..1fa016627d4 100644
--- a/pkgs/applications/misc/haxor-news/default.nix
+++ b/pkgs/applications/misc/haxor-news/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python }:
+{ stdenv, python }:
 
 with python.pkgs;
 
diff --git a/pkgs/applications/misc/houdini/default.nix b/pkgs/applications/misc/houdini/default.nix
index 0b679617243..607dff29318 100644
--- a/pkgs/applications/misc/houdini/default.nix
+++ b/pkgs/applications/misc/houdini/default.nix
@@ -1,4 +1,4 @@
-{ zsh, stdenv, callPackage, buildFHSUserEnv, undaemonize }:
+{ callPackage, buildFHSUserEnv, undaemonize }:
 
 let
   houdini-runtime = callPackage ./runtime.nix { };
diff --git a/pkgs/applications/misc/icesl/default.nix b/pkgs/applications/misc/icesl/default.nix
index 2295e15cc3d..49b1741fd5a 100644
--- a/pkgs/applications/misc/icesl/default.nix
+++ b/pkgs/applications/misc/icesl/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchzip, patchelf, freeglut, libXmu, libXi, libX11, libICE, libGLU_combined, libSM, libXext, dialog, makeWrapper }:
+{ stdenv, lib, fetchzip, freeglut, libXmu, libXi, libX11, libICE, libGLU_combined, libSM, libXext, dialog, makeWrapper }:
 let
   lpath = stdenv.lib.makeLibraryPath [ libXmu libXi libX11 freeglut libICE libGLU_combined libSM libXext ];
 in
diff --git a/pkgs/applications/misc/josm/default.nix b/pkgs/applications/misc/josm/default.nix
index c4f10a1c35b..9872ff23f34 100644
--- a/pkgs/applications/misc/josm/default.nix
+++ b/pkgs/applications/misc/josm/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, makeDesktopItem, makeWrapper, unzip, bash, jre10 }:
+{ fetchurl, stdenv, makeDesktopItem, makeWrapper, unzip, jre10 }:
 
 stdenv.mkDerivation rec {
   name = "josm-${version}";
diff --git a/pkgs/applications/misc/khard/default.nix b/pkgs/applications/misc/khard/default.nix
index 075640f702c..3c5184d5463 100644
--- a/pkgs/applications/misc/khard/default.nix
+++ b/pkgs/applications/misc/khard/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub, glibcLocales, python3 }:
+{ stdenv, fetchurl, glibcLocales, python3 }:
 
 let
   python = python3.override {
diff --git a/pkgs/applications/misc/kitty/default.nix b/pkgs/applications/misc/kitty/default.nix
index 38c2494c9f7..0c894fb0b61 100644
--- a/pkgs/applications/misc/kitty/default.nix
+++ b/pkgs/applications/misc/kitty/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchFromGitHub, pkgs, python3Packages, glfw, libunistring, harfbuzz,
-  fontconfig, zlib, pkgconfig, ncurses, imagemagick, makeWrapper, xsel,
+{ stdenv, fetchFromGitHub, python3Packages, glfw, libunistring, harfbuzz,
+  fontconfig, pkgconfig, ncurses, imagemagick, xsel,
   libstartup_notification, libX11, libXrandr, libXinerama, libXcursor,
   libxkbcommon, libXi, libXext, wayland-protocols, wayland,
   which
diff --git a/pkgs/applications/misc/kiwix/default.nix b/pkgs/applications/misc/kiwix/default.nix
index 699cb2fd098..c37d26f3dbc 100644
--- a/pkgs/applications/misc/kiwix/default.nix
+++ b/pkgs/applications/misc/kiwix/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, makeWrapper, pkgconfig
 , zip, python, zlib, which, icu, libmicrohttpd, lzma, aria2, wget, bc
-, libuuid, glibc, libX11, libXext, libXt, libXrender, glib, dbus, dbus-glib
+, libuuid, libX11, libXext, libXt, libXrender, glib, dbus, dbus-glib
 , gtk2, gdk_pixbuf, pango, cairo, freetype, fontconfig, alsaLib, atk, cmake
 , xapian, ctpp2, zimlib
 }:
diff --git a/pkgs/applications/misc/kupfer/default.nix b/pkgs/applications/misc/kupfer/default.nix
index bb55fc2d4a8..3072963c43e 100644
--- a/pkgs/applications/misc/kupfer/default.nix
+++ b/pkgs/applications/misc/kupfer/default.nix
@@ -1,11 +1,9 @@
 { stdenv
-, makeWrapper
 , fetchurl
 , intltool
 , python3Packages
 , gobjectIntrospection
 , gtk3
-, dbus
 , libwnck3
 , keybinder3
 , hicolor-icon-theme
diff --git a/pkgs/applications/misc/llpp/default.nix b/pkgs/applications/misc/llpp/default.nix
index 25067e3bba5..372adef4375 100644
--- a/pkgs/applications/misc/llpp/default.nix
+++ b/pkgs/applications/misc/llpp/default.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, makeWrapper, fetchgit, pkgconfig, ninja, ocaml, findlib, mupdf
-, lablgl, gtk3, openjpeg, jbig2dec, mujs, xsel, openssl, freetype, ncurses }:
+, gtk3, openjpeg, jbig2dec, mujs, xsel, openssl, freetype, ncurses }:
 
 assert lib.versionAtLeast (lib.getVersion ocaml) "4.02";
 
diff --git a/pkgs/applications/misc/madonctl/default.nix b/pkgs/applications/misc/madonctl/default.nix
index 787ce7231f3..f2dacb7890f 100644
--- a/pkgs/applications/misc/madonctl/default.nix
+++ b/pkgs/applications/misc/madonctl/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildGoPackage, fetchFromGitHub, fetchgx }:
+{ stdenv, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   name = "madonctl-${version}";
diff --git a/pkgs/applications/misc/masterpdfeditor/default.nix b/pkgs/applications/misc/masterpdfeditor/default.nix
index fb17aadfa49..23f14d7ac9a 100644
--- a/pkgs/applications/misc/masterpdfeditor/default.nix
+++ b/pkgs/applications/misc/masterpdfeditor/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, glibc, sane-backends, qtbase, qtsvg, libXext, libX11, libXdmcp, libXau, libxcb, autoPatchelfHook }:
+{ stdenv, fetchurl, sane-backends, qtbase, qtsvg, autoPatchelfHook }:
 let
   version = "4.3.89";
 in stdenv.mkDerivation {
diff --git a/pkgs/applications/misc/mop/default.nix b/pkgs/applications/misc/mop/default.nix
index 336b136c56d..8c6bd92d536 100644
--- a/pkgs/applications/misc/mop/default.nix
+++ b/pkgs/applications/misc/mop/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchgit }:
+{ stdenv, buildGoPackage, fetchgit }:
 
 buildGoPackage rec {
   name = "mop-${version}";
diff --git a/pkgs/applications/misc/octoprint/default.nix b/pkgs/applications/misc/octoprint/default.nix
index 6b057186eaf..2abbfdea041 100644
--- a/pkgs/applications/misc/octoprint/default.nix
+++ b/pkgs/applications/misc/octoprint/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, python2, fetchurl }:
+{ stdenv, fetchFromGitHub, python2 }:
 
 let
 
diff --git a/pkgs/applications/misc/octoprint/plugins.nix b/pkgs/applications/misc/octoprint/plugins.nix
index 0a1d26012a8..bd65acf5e5e 100644
--- a/pkgs/applications/misc/octoprint/plugins.nix
+++ b/pkgs/applications/misc/octoprint/plugins.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, octoprint, pythonPackages }:
+{ stdenv, fetchFromGitHub, octoprint, pythonPackages }:
 
 let
   buildPlugin = args: pythonPackages.buildPythonApplication (args // {
diff --git a/pkgs/applications/misc/orca/default.nix b/pkgs/applications/misc/orca/default.nix
index ca06b5fa6df..199fa3e9bfe 100644
--- a/pkgs/applications/misc/orca/default.nix
+++ b/pkgs/applications/misc/orca/default.nix
@@ -1,9 +1,9 @@
-{ stdenv, lib, pkgconfig, fetchurl, buildPythonApplication
+{ lib, pkgconfig, fetchurl, buildPythonApplication
 , autoreconfHook, wrapGAppsHook, gobjectIntrospection
 , intltool, yelp-tools, itstool, libxmlxx3
 , python, pygobject3, gtk3, gnome3, substituteAll
 , at-spi2-atk, at-spi2-core, pyatspi, dbus, dbus-python, pyxdg
-, xkbcomp, gsettings-desktop-schemas, liblouis
+, xkbcomp, gsettings-desktop-schemas
 , speechd, brltty, setproctitle, gst_all_1, gst-python
 }:
 
diff --git a/pkgs/applications/misc/perkeep/default.nix b/pkgs/applications/misc/perkeep/default.nix
index 746a319c2e1..9ecf0da5806 100644
--- a/pkgs/applications/misc/perkeep/default.nix
+++ b/pkgs/applications/misc/perkeep/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, go, fetchzip, git, fetchpatch, fetchFromGitHub, fetchgit }:
+{ stdenv, go, fetchzip, git, fetchFromGitHub, fetchgit }:
 
 # When perkeep is updated all deps in the let block should be removed
 let
diff --git a/pkgs/applications/misc/pgmanage/default.nix b/pkgs/applications/misc/pgmanage/default.nix
index 23ab0f8d34a..a548c149665 100644
--- a/pkgs/applications/misc/pgmanage/default.nix
+++ b/pkgs/applications/misc/pgmanage/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, runCommand, postgresql, openssl } :
+{ stdenv, fetchFromGitHub, postgresql, openssl } :
 
 stdenv.mkDerivation rec {
   name = "pgmanage-${version}";
diff --git a/pkgs/applications/misc/polybar/default.nix b/pkgs/applications/misc/polybar/default.nix
index 05ad3e2a906..3ac719d18d2 100644
--- a/pkgs/applications/misc/polybar/default.nix
+++ b/pkgs/applications/misc/polybar/default.nix
@@ -1,6 +1,6 @@
 { cairo, cmake, fetchgit, libXdmcp, libpthreadstubs, libxcb, pcre, pkgconfig
 , python2 , stdenv, xcbproto, xcbutil, xcbutilimage, xcbutilrenderutil
-, xcbutilwm, xcbutilxrm, fetchpatch, makeWrapper
+, xcbutilwm, xcbutilxrm, makeWrapper
 
 # optional packages-- override the variables ending in 'Support' to enable or
 # disable modules
diff --git a/pkgs/applications/misc/pt/default.nix b/pkgs/applications/misc/pt/default.nix
index a400bb04da4..dbda7664bde 100644
--- a/pkgs/applications/misc/pt/default.nix
+++ b/pkgs/applications/misc/pt/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, bundlerEnv, ruby }:
+{ lib, bundlerEnv, ruby }:
 
 bundlerEnv {
   name = "pt-0.7.3";
diff --git a/pkgs/applications/misc/redis-desktop-manager/default.nix b/pkgs/applications/misc/redis-desktop-manager/default.nix
index 7a4348260fd..bf4559e9117 100644
--- a/pkgs/applications/misc/redis-desktop-manager/default.nix
+++ b/pkgs/applications/misc/redis-desktop-manager/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchgit, fetchpatch, pkgconfig, libssh2
+{ stdenv, lib, fetchgit, pkgconfig, libssh2
 , qtbase, qtdeclarative, qtgraphicaleffects, qtimageformats, qtquickcontrols
 , qtsvg, qttools, qtquick1, qtcharts
 , qmake
diff --git a/pkgs/applications/misc/redshift/default.nix b/pkgs/applications/misc/redshift/default.nix
index dcc8300550f..c6d3d6e1a9d 100644
--- a/pkgs/applications/misc/redshift/default.nix
+++ b/pkgs/applications/misc/redshift/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchurl, autoconf, automake, gettext, intltool
+{ stdenv, fetchFromGitHub, autoconf, automake, gettext, intltool
 , libtool, pkgconfig, wrapGAppsHook, wrapPython, gobjectIntrospection
 , gtk3, python, pygobject3, hicolor-icon-theme, pyxdg
 
diff --git a/pkgs/applications/misc/rofi/default.nix b/pkgs/applications/misc/rofi/default.nix
index 7da721e9f37..2d22d87c49a 100644
--- a/pkgs/applications/misc/rofi/default.nix
+++ b/pkgs/applications/misc/rofi/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, autoreconfHook, pkgconfig, libxkbcommon, pango, which, git
-, cairo, glib, libxcb, xcbutil, xcbutilwm, xcbutilxrm, libstartup_notification
+, cairo, libxcb, xcbutil, xcbutilwm, xcbutilxrm, libstartup_notification
 , bison, flex, librsvg, check
 }:
 
diff --git a/pkgs/applications/misc/rofi/wrapper.nix b/pkgs/applications/misc/rofi/wrapper.nix
index 17bbf1583c4..c2384f56faa 100644
--- a/pkgs/applications/misc/rofi/wrapper.nix
+++ b/pkgs/applications/misc/rofi/wrapper.nix
@@ -1,4 +1,4 @@
-{ stdenv, rofi-unwrapped, makeWrapper, theme ? null, lib }:
+{ stdenv, rofi-unwrapped, makeWrapper, theme ? null }:
 
 if theme == null then rofi-unwrapped else
 stdenv.mkDerivation {
diff --git a/pkgs/applications/misc/roxterm/default.nix b/pkgs/applications/misc/roxterm/default.nix
index 3ef5a6c4e34..11a75e4064f 100644
--- a/pkgs/applications/misc/roxterm/default.nix
+++ b/pkgs/applications/misc/roxterm/default.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchurl, docbook_xsl, dbus, dbus-glib, expat, gettext
-, gsettings-desktop-schemas, gdk_pixbuf, gtk2, gtk3, hicolor-icon-theme
-, imagemagick, itstool, librsvg, libtool, libxslt, lockfile, makeWrapper
+{ stdenv, fetchurl, docbook_xsl, dbus, dbus-glib, expat
+, gsettings-desktop-schemas, gdk_pixbuf, gtk3, hicolor-icon-theme
+, imagemagick, itstool, librsvg, libtool, libxslt, makeWrapper
 , pkgconfig, python, pythonPackages, vte
 , wrapGAppsHook}:
 
diff --git a/pkgs/applications/misc/rtv/default.nix b/pkgs/applications/misc/rtv/default.nix
index d2027696824..5c16a02ddb8 100644
--- a/pkgs/applications/misc/rtv/default.nix
+++ b/pkgs/applications/misc/rtv/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, pkgs, pythonPackages }:
+{ stdenv, fetchFromGitHub, pythonPackages }:
 
 with pythonPackages;
 buildPythonApplication rec {
diff --git a/pkgs/applications/misc/rxvt_unicode/wrapper.nix b/pkgs/applications/misc/rxvt_unicode/wrapper.nix
index 98d7e12a8ed..909c267def8 100644
--- a/pkgs/applications/misc/rxvt_unicode/wrapper.nix
+++ b/pkgs/applications/misc/rxvt_unicode/wrapper.nix
@@ -1,4 +1,4 @@
-{ stdenv, symlinkJoin, rxvt_unicode, makeWrapper, plugins }:
+{ symlinkJoin, rxvt_unicode, makeWrapper, plugins }:
 
 let
   rxvt_name = builtins.parseDrvName rxvt_unicode.name;
diff --git a/pkgs/applications/misc/simplenote/default.nix b/pkgs/applications/misc/simplenote/default.nix
index 513c5facc6b..8049cc2feae 100644
--- a/pkgs/applications/misc/simplenote/default.nix
+++ b/pkgs/applications/misc/simplenote/default.nix
@@ -1,5 +1,5 @@
 { fetchurl, stdenv, lib, zlib, glib, alsaLib, dbus, gtk2, atk, pango, freetype, fontconfig
-, libgnome-keyring3, gdk_pixbuf, gvfs, cairo, cups, expat, libgpgerror, nspr
+, libgnome-keyring3, gdk_pixbuf, cairo, cups, expat, libgpgerror, nspr
 , nss, xorg, libcap, systemd, libnotify ,libXScrnSaver, gnome3 }:
 
  stdenv.mkDerivation rec {
diff --git a/pkgs/applications/misc/slic3r/prusa3d.nix b/pkgs/applications/misc/slic3r/prusa3d.nix
index 11a5baa288d..9f4036c3f96 100644
--- a/pkgs/applications/misc/slic3r/prusa3d.nix
+++ b/pkgs/applications/misc/slic3r/prusa3d.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, makeWrapper, which, cmake, perl, perlPackages,
-  boost, tbb, wxGTK30, pkgconfig, gtk3, fetchurl, gtk2, bash, libGLU,
+  boost, tbb, wxGTK30, pkgconfig, gtk3, fetchurl, gtk2, libGLU,
   glew, eigen, curl }:
 let
   AlienWxWidgets = perlPackages.buildPerlPackage rec {
diff --git a/pkgs/applications/misc/spacefm/default.nix b/pkgs/applications/misc/spacefm/default.nix
index 6fa594dec04..9f20b20f7f3 100644
--- a/pkgs/applications/misc/spacefm/default.nix
+++ b/pkgs/applications/misc/spacefm/default.nix
@@ -1,6 +1,6 @@
 { pkgs, fetchFromGitHub, stdenv, gtk3, udev, desktop-file-utils
 , shared-mime-info, intltool, pkgconfig, wrapGAppsHook, ffmpegthumbnailer
-, jmtpfs, ifuseSupport ? false, ifuse ? null, lsof, udisks2, hicolor-icon-theme, adwaita-icon-theme }:
+, jmtpfs, ifuseSupport ? false, ifuse ? null, lsof, udisks2 }:
 
 stdenv.mkDerivation rec {
   name = "spacefm-${version}";
diff --git a/pkgs/applications/misc/sweethome3d/editors.nix b/pkgs/applications/misc/sweethome3d/editors.nix
index 6c4b32ca9aa..14285a52e27 100644
--- a/pkgs/applications/misc/sweethome3d/editors.nix
+++ b/pkgs/applications/misc/sweethome3d/editors.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, fetchcvs, makeWrapper, makeDesktopItem, jdk, jre, ant
-, gtk3, gsettings-desktop-schemas, p7zip, sweethome3dApp }:
+{ stdenv, fetchcvs, makeWrapper, makeDesktopItem, jdk, jre, ant
+, gtk3, gsettings-desktop-schemas, sweethome3dApp }:
 
 let
 
diff --git a/pkgs/applications/misc/tasksh/default.nix b/pkgs/applications/misc/tasksh/default.nix
index 1e51ba22ddc..dac447edd7d 100644
--- a/pkgs/applications/misc/tasksh/default.nix
+++ b/pkgs/applications/misc/tasksh/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, cmake, libuuid, gnutls, readline }:
+{ stdenv, fetchurl, cmake, readline }:
 
 stdenv.mkDerivation rec {
   name = "tasksh-${version}";
diff --git a/pkgs/applications/misc/tilix/default.nix b/pkgs/applications/misc/tilix/default.nix
index 1cc03b4cd42..f30c6a63948 100644
--- a/pkgs/applications/misc/tilix/default.nix
+++ b/pkgs/applications/misc/tilix/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, autoreconfHook, pkgconfig, dmd, gnome3, dbus
-, gsettings-desktop-schemas, libsecret, desktop-file-utils, gettext, gtkd
+, gsettings-desktop-schemas, desktop-file-utils, gettext, gtkd
 , perlPackages, wrapGAppsHook, xdg_utils }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/misc/timewarrior/default.nix b/pkgs/applications/misc/timewarrior/default.nix
index 9aca45264af..ff3caec2964 100644
--- a/pkgs/applications/misc/timewarrior/default.nix
+++ b/pkgs/applications/misc/timewarrior/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, cmake, libuuid, gnutls }:
+{ stdenv, fetchurl, cmake }:
 
 stdenv.mkDerivation rec {
   name = "timewarrior-${version}";
diff --git a/pkgs/applications/misc/twmn/default.nix b/pkgs/applications/misc/twmn/default.nix
index 297f3d0b599..020aa963541 100644
--- a/pkgs/applications/misc/twmn/default.nix
+++ b/pkgs/applications/misc/twmn/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, fetchgit, qtbase, qtx11extras, qmake, pkgconfig, boost }:
+{ stdenv, fetchgit, qtbase, qtx11extras, qmake, pkgconfig, boost }:
 
 stdenv.mkDerivation rec {
   name = "twmn-git-2014-09-23";
diff --git a/pkgs/applications/misc/wego/default.nix b/pkgs/applications/misc/wego/default.nix
index e59a3e98943..b61566af6b2 100644
--- a/pkgs/applications/misc/wego/default.nix
+++ b/pkgs/applications/misc/wego/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchgit, fetchhg, fetchbzr, fetchsvn }:
+{ stdenv, buildGoPackage, fetchgit }:
 
 buildGoPackage rec {
   name = "wego-${version}";
diff --git a/pkgs/applications/misc/welle-io/default.nix b/pkgs/applications/misc/welle-io/default.nix
index 27376f4db81..410346bce9a 100644
--- a/pkgs/applications/misc/welle-io/default.nix
+++ b/pkgs/applications/misc/welle-io/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildEnv, fetchFromGitHub, cmake, pkgconfig
+{ stdenv, fetchFromGitHub, cmake, pkgconfig
 , qtbase, qtcharts, qtmultimedia, qtquickcontrols, qtquickcontrols2
 , faad2, rtl-sdr, soapysdr-with-plugins, libusb, fftwSinglePrec }:
 let
diff --git a/pkgs/applications/misc/wsjtx/default.nix b/pkgs/applications/misc/wsjtx/default.nix
index 23be3a5dc4f..fd6be8f5920 100644
--- a/pkgs/applications/misc/wsjtx/default.nix
+++ b/pkgs/applications/misc/wsjtx/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, asciidoc, asciidoctor, autoconf, automake, cmake,
-  docbook_xsl, fftw, fftwFloat, gfortran, libtool, libpulseaudio, qtbase,
+  docbook_xsl, fftw, fftwFloat, gfortran, libtool, qtbase,
   qtmultimedia, qtserialport, texinfo, libusb1 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/misc/xmr-stak/default.nix b/pkgs/applications/misc/xmr-stak/default.nix
index 05530af1254..9d68affa7ad 100644
--- a/pkgs/applications/misc/xmr-stak/default.nix
+++ b/pkgs/applications/misc/xmr-stak/default.nix
@@ -1,5 +1,5 @@
 { stdenv, stdenvGcc6, lib
-, fetchFromGitHub, cmake, libuv, libmicrohttpd, openssl
+, fetchFromGitHub, cmake, libmicrohttpd, openssl
 , opencl-headers, ocl-icd, hwloc, cudatoolkit
 , devDonationLevel ? "0.0"
 , cudaSupport ? false
diff --git a/pkgs/applications/misc/yarssr/default.nix b/pkgs/applications/misc/yarssr/default.nix
index cadf5ccb6a4..2c569b7d681 100644
--- a/pkgs/applications/misc/yarssr/default.nix
+++ b/pkgs/applications/misc/yarssr/default.nix
@@ -1,6 +1,6 @@
 {
 fetchFromGitHub, stdenv, lib,
-autoreconfHook, intltool, pkgconfig, makeWrapper, pkgs,
+makeWrapper, pkgs,
 perl, perlPackages,
 gnome2 }:
 
diff --git a/pkgs/applications/misc/yubioath-desktop/default.nix b/pkgs/applications/misc/yubioath-desktop/default.nix
index 06fa8d2bd0d..8843c821ffb 100644
--- a/pkgs/applications/misc/yubioath-desktop/default.nix
+++ b/pkgs/applications/misc/yubioath-desktop/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl,  python27Packages, swig, gettext, pcsclite, qt48Full, yubikey-personalization }:
+{ stdenv, fetchurl,  python27Packages, pcsclite, yubikey-personalization }:
 
 python27Packages.buildPythonApplication rec {
     namePrefix = "";
diff --git a/pkgs/applications/misc/zathura/core/default.nix b/pkgs/applications/misc/zathura/core/default.nix
index 415995a828d..001d70775d6 100644
--- a/pkgs/applications/misc/zathura/core/default.nix
+++ b/pkgs/applications/misc/zathura/core/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, meson, ninja, makeWrapper, pkgconfig
 , appstream-glib, desktop-file-utils, python3
-, gtk, girara, ncurses, gettext, libxml2
+, gtk, girara, gettext, libxml2
 , file, sqlite, glib, texlive, libintl, libseccomp
 , gtk-mac-integration, synctexSupport ? true
 }:
diff --git a/pkgs/applications/misc/zathura/pdf-mupdf/default.nix b/pkgs/applications/misc/zathura/pdf-mupdf/default.nix
index 86fe453465a..9d86dfe4a44 100644
--- a/pkgs/applications/misc/zathura/pdf-mupdf/default.nix
+++ b/pkgs/applications/misc/zathura/pdf-mupdf/default.nix
@@ -1,6 +1,5 @@
 { stdenv, lib, meson, ninja, fetchurl, pkgconfig, zathura_core, cairo,
-gtk-mac-integration, girara, mupdf, openssl , libjpeg, jbig2dec,
-openjpeg, fetchpatch }:
+gtk-mac-integration, girara, mupdf }:
 
 stdenv.mkDerivation rec {
   version = "0.3.3";
diff --git a/pkgs/applications/misc/zscroll/default.nix b/pkgs/applications/misc/zscroll/default.nix
index 92d173807f9..18876cf355b 100644
--- a/pkgs/applications/misc/zscroll/default.nix
+++ b/pkgs/applications/misc/zscroll/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, python3, python3Packages, fetchFromGitHub }:
+{ stdenv, python3, python3Packages, fetchFromGitHub }:
 
 let version = "1.0"; in
 
diff --git a/pkgs/applications/networking/browsers/chromium/common.nix b/pkgs/applications/networking/browsers/chromium/common.nix
index 196e2eb79bd..c2471d8a0ea 100644
--- a/pkgs/applications/networking/browsers/chromium/common.nix
+++ b/pkgs/applications/networking/browsers/chromium/common.nix
@@ -5,7 +5,7 @@
 , libevent, expat, libjpeg, snappy
 , libpng, libcap
 , xdg_utils, yasm, minizip, libwebp
-, libusb1, pciutils, nss, re2, zlib, libvpx
+, libusb1, pciutils, nss, re2, zlib
 
 , python2Packages, perl, pkgconfig
 , nspr, systemd, kerberos
@@ -14,11 +14,10 @@
 , glib, gtk2, gtk3, dbus-glib
 , libXScrnSaver, libXcursor, libXtst, libGLU_combined
 , protobuf, speechd, libXdamage, cups
-, ffmpeg, harfbuzz, harfbuzz-icu, libxslt, libxml2
+, ffmpeg, libxslt, libxml2
 
 # optional dependencies
 , libgcrypt ? null # gnomeSupport || cupsSupport
-, libexif ? null # only needed for Chromium before version 51
 
 # package customization
 , enableNaCl ? false
diff --git a/pkgs/applications/networking/browsers/falkon/default.nix b/pkgs/applications/networking/browsers/falkon/default.nix
index 9dad2df7fd0..21631ef191c 100644
--- a/pkgs/applications/networking/browsers/falkon/default.nix
+++ b/pkgs/applications/networking/browsers/falkon/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, lib, fetchFromGitHub, cmake, extra-cmake-modules, pkgconfig, qmake
-, libpthreadstubs, libxcb, libXdmcp, qtsvg, qttools, qtwebengine, qtx11extras, kwallet, openssl }:
+{ stdenv, fetchFromGitHub, cmake, extra-cmake-modules, pkgconfig, qmake
+, libpthreadstubs, libxcb, libXdmcp, qtsvg, qttools, qtwebengine, qtx11extras, kwallet }:
 
 stdenv.mkDerivation rec {
   name = "falkon-${version}";
diff --git a/pkgs/applications/networking/browsers/firefox/common.nix b/pkgs/applications/networking/browsers/firefox/common.nix
index 50eb396d644..336cd255661 100644
--- a/pkgs/applications/networking/browsers/firefox/common.nix
+++ b/pkgs/applications/networking/browsers/firefox/common.nix
@@ -8,7 +8,7 @@
 , freetype, fontconfig, file, nspr, nss, libnotify
 , yasm, libGLU_combined, sqlite, unzip, makeWrapper
 , hunspell, libevent, libstartup_notification, libvpx
-, cairo, icu, libpng, jemalloc, glib
+, icu, libpng, jemalloc, glib
 , autoconf213, which, gnused, cargo, rustc, llvmPackages
 , debugBuild ? false
 
diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index bdb9dab4f9d..f1d7b216120 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -1,4 +1,4 @@
-{ lib, callPackage, stdenv, overrideCC, gcc5, fetchurl, fetchFromGitHub, fetchpatch, python3 }:
+{ lib, callPackage, stdenv, fetchurl, fetchFromGitHub, fetchpatch, python3 }:
 
 let
 
diff --git a/pkgs/applications/networking/browsers/google-chrome/default.nix b/pkgs/applications/networking/browsers/google-chrome/default.nix
index 2df2043517a..52a2ccb292b 100644
--- a/pkgs/applications/networking/browsers/google-chrome/default.nix
+++ b/pkgs/applications/networking/browsers/google-chrome/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, patchelf, makeWrapper
+{ stdenv, patchelf, makeWrapper
 
 # Linked dynamic libraries.
 , glib, fontconfig, freetype, pango, cairo, libX11, libXi, atk, gconf, nss, nspr
diff --git a/pkgs/applications/networking/browsers/lynx/default.nix b/pkgs/applications/networking/browsers/lynx/default.nix
index 9cdd32d2aae..6097c0e95f0 100644
--- a/pkgs/applications/networking/browsers/lynx/default.nix
+++ b/pkgs/applications/networking/browsers/lynx/default.nix
@@ -1,7 +1,6 @@
 { stdenv, buildPackages
 , fetchurl, pkgconfig, ncurses, gzip
 , sslSupport ? true, openssl ? null
-, buildPlatform, hostPlatform
 , nukeReferences
 }:
 
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
index a320321ea17..a172e0e8d5d 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, rpm, cpio, libGL, xorg, cairo
+{ stdenv, fetchurl, libGL, xorg, cairo
 , libpng, gtk2, glib, gdk_pixbuf, fontconfig, freetype, curl
 , dbus-glib, alsaLib, libpulseaudio, systemd, pango
 }:
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/trezor/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/trezor/default.nix
index fb6e85ccdbb..3d4e0fc0022 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/trezor/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/trezor/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, dpkg, zlib }:
+{ stdenv, fetchurl, dpkg }:
 
 stdenv.mkDerivation {
   name = "TREZOR-bridge-1.0.5";
diff --git a/pkgs/applications/networking/browsers/otter/default.nix b/pkgs/applications/networking/browsers/otter/default.nix
index 0a8efb3aace..d1f50627d90 100644
--- a/pkgs/applications/networking/browsers/otter/default.nix
+++ b/pkgs/applications/networking/browsers/otter/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, cmake, openssl, gst_all_1, fetchFromGitHub
+{ stdenv, cmake, fetchFromGitHub
 , qtbase, qtmultimedia, qtwebengine
 , version ? "0.9.96"
 , sourceSha ? "1xzfy3jjx9sskwwbk7l8hnwnjf8af62p4kjkydp0ld0j50apc39p"
diff --git a/pkgs/applications/networking/browsers/vimprobable2/default.nix b/pkgs/applications/networking/browsers/vimprobable2/default.nix
index 54abc7dedff..9de7518677d 100644
--- a/pkgs/applications/networking/browsers/vimprobable2/default.nix
+++ b/pkgs/applications/networking/browsers/vimprobable2/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, makeWrapper, glib, glib-networking, gtk2, libsoup, libX11, perl,
+{ stdenv, fetchurl, makeWrapper, glib-networking, gtk2, libsoup, libX11, perl,
   pkgconfig, webkit, gsettings-desktop-schemas }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/browsers/vivaldi/default.nix b/pkgs/applications/networking/browsers/vivaldi/default.nix
index 7aba25dc339..11264df98f1 100644
--- a/pkgs/applications/networking/browsers/vivaldi/default.nix
+++ b/pkgs/applications/networking/browsers/vivaldi/default.nix
@@ -1,8 +1,8 @@
 { stdenv, fetchurl, zlib, libX11, libXext, libSM, libICE
 , libXfixes, libXt, libXi, libXcursor, libXScrnSaver, libXcomposite, libXdamage, libXtst, libXrandr
 , alsaLib, dbus, cups, libexif, ffmpeg, systemd
-, freetype, fontconfig, libXft, libXrender, libxcb, expat, libXau, libXdmcp
-, libuuid, xz
+, freetype, fontconfig, libXft, libXrender, libxcb, expat
+, libuuid
 , gstreamer, gst-plugins-base, libxml2
 , glib, gtk3, pango, gdk_pixbuf, cairo, atk, at-spi2-atk, gnome3
 , nss, nspr
diff --git a/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix b/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix
index 11aa0ce706d..ab2c24727d7 100644
--- a/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix
+++ b/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch
+{ stdenv, fetchurl
 , dbus-glib, gtk2, gtk3, libexif, libpulseaudio, libXScrnSaver, ninja, nss
 , pciutils, pkgconfig, python2, xdg_utils
 }:
diff --git a/pkgs/applications/networking/cluster/habitat/default.nix b/pkgs/applications/networking/cluster/habitat/default.nix
index 1656e5a09a6..0c210dcc535 100644
--- a/pkgs/applications/networking/cluster/habitat/default.nix
+++ b/pkgs/applications/networking/cluster/habitat/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, rustPlatform, pkgconfig
+{ lib, fetchFromGitHub, rustPlatform, pkgconfig
 , libsodium, libarchive, openssl }:
 
 with rustPlatform;
diff --git a/pkgs/applications/networking/cluster/kompose/default.nix b/pkgs/applications/networking/cluster/kompose/default.nix
index ff0f664154a..d6e703f79d0 100644
--- a/pkgs/applications/networking/cluster/kompose/default.nix
+++ b/pkgs/applications/networking/cluster/kompose/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   name = "kompose-${version}";
diff --git a/pkgs/applications/networking/cluster/kops/default.nix b/pkgs/applications/networking/cluster/kops/default.nix
index a1e17f60810..5f7a2e8e284 100644
--- a/pkgs/applications/networking/cluster/kops/default.nix
+++ b/pkgs/applications/networking/cluster/kops/default.nix
@@ -1,5 +1,5 @@
 
-{ stdenv, lib, buildGoPackage, fetchFromGitHub, go-bindata }:
+{ stdenv, buildGoPackage, fetchFromGitHub, go-bindata }:
 
 buildGoPackage rec {
   name = "kops-${version}";
diff --git a/pkgs/applications/networking/cluster/kubernetes/default.nix b/pkgs/applications/networking/cluster/kubernetes/default.nix
index 6bd7ba3eac2..01bf3467af9 100644
--- a/pkgs/applications/networking/cluster/kubernetes/default.nix
+++ b/pkgs/applications/networking/cluster/kubernetes/default.nix
@@ -1,5 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, fetchpatch, removeReferencesTo, which, go_1_9, go-bindata, makeWrapper, rsync
-, iptables, coreutils
+{ stdenv, lib, fetchFromGitHub, removeReferencesTo, which, go_1_9, go-bindata, makeWrapper, rsync
 , components ? [
     "cmd/kubeadm"
     "cmd/kubectl"
diff --git a/pkgs/applications/networking/cluster/mesos/default.nix b/pkgs/applications/networking/cluster/mesos/default.nix
index 961c0afc5c5..6e2089f9935 100644
--- a/pkgs/applications/networking/cluster/mesos/default.nix
+++ b/pkgs/applications/networking/cluster/mesos/default.nix
@@ -1,6 +1,6 @@
 { stdenv, lib, makeWrapper, fetchurl, curl, sasl, openssh
 , unzip, gnutar, jdk, python, wrapPython
-, setuptools, boto, pythonProtobuf, apr, subversion, gzip, systemd
+, setuptools, boto, pythonProtobuf, apr, subversion, gzip
 , leveldb, glog, perf, utillinux, libnl, iproute, openssl, libevent
 , ethtool, coreutils, which, iptables, maven
 , bash, autoreconfHook
diff --git a/pkgs/applications/networking/cluster/minikube/default.nix b/pkgs/applications/networking/cluster/minikube/default.nix
index 4c2e1b6f4c0..b674f1f6458 100644
--- a/pkgs/applications/networking/cluster/minikube/default.nix
+++ b/pkgs/applications/networking/cluster/minikube/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, buildGoPackage, fetchFromGitHub, fetchurl, go-bindata, libvirt, qemu
-, gpgme, makeWrapper, hostPlatform, vmnet, python, pkgconfig
+{ stdenv, buildGoPackage, fetchFromGitHub, go-bindata, libvirt, qemu
+, gpgme, makeWrapper, hostPlatform, vmnet, python
 , docker-machine-kvm, docker-machine-kvm2
 , extraDrivers ? []
 }:
diff --git a/pkgs/applications/networking/cluster/openshift/default.nix b/pkgs/applications/networking/cluster/openshift/default.nix
index 6b6a2dc8986..6f836d27357 100644
--- a/pkgs/applications/networking/cluster/openshift/default.nix
+++ b/pkgs/applications/networking/cluster/openshift/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, lib, fetchFromGitHub, fetchpatch, removeReferencesTo, which, go_1_9, go-bindata, makeWrapper, rsync, utillinux
-, iptables, coreutils, kerberos, clang
+{ stdenv, lib, fetchFromGitHub, removeReferencesTo, which, go_1_9, go-bindata, makeWrapper, rsync, utillinux
+, coreutils, kerberos, clang
 , components ? [
   "cmd/oc"
   "cmd/openshift"
diff --git a/pkgs/applications/networking/cluster/taktuk/default.nix b/pkgs/applications/networking/cluster/taktuk/default.nix
index 1510dc575cc..c61896d8921 100644
--- a/pkgs/applications/networking/cluster/taktuk/default.nix
+++ b/pkgs/applications/networking/cluster/taktuk/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, perl , openssh}:
+{ stdenv, fetchurl, perl }:
 
 stdenv.mkDerivation rec {
   version = "3.7.7";
diff --git a/pkgs/applications/networking/cluster/terraform-provider-ibm/default.nix b/pkgs/applications/networking/cluster/terraform-provider-ibm/default.nix
index ad4edec6b4e..fddf13795f3 100644
--- a/pkgs/applications/networking/cluster/terraform-provider-ibm/default.nix
+++ b/pkgs/applications/networking/cluster/terraform-provider-ibm/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoPackage, fetchFromGitHub }:
 
 #
 # USAGE:
diff --git a/pkgs/applications/networking/cluster/terraform-provider-nixos/default.nix b/pkgs/applications/networking/cluster/terraform-provider-nixos/default.nix
index 135e5402929..f4ad171c267 100644
--- a/pkgs/applications/networking/cluster/terraform-provider-nixos/default.nix
+++ b/pkgs/applications/networking/cluster/terraform-provider-nixos/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoPackage, fetchFromGitHub }:
 buildGoPackage rec {
   name = "terraform-provider-nixos-${version}";
   version = "0.0.1";
diff --git a/pkgs/applications/networking/cluster/terraform/default.nix b/pkgs/applications/networking/cluster/terraform/default.nix
index fbcb6c8be40..358a1f23147 100644
--- a/pkgs/applications/networking/cluster/terraform/default.nix
+++ b/pkgs/applications/networking/cluster/terraform/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildEnv, buildGoPackage, fetchpatch, fetchFromGitHub, makeWrapper }:
+{ stdenv, lib, buildEnv, buildGoPackage, fetchFromGitHub, makeWrapper }:
 
 let
   goPackagePath = "github.com/hashicorp/terraform";
@@ -75,7 +75,7 @@ let
             });
     in withPlugins (_: []);
 
-  plugins = import ./providers { inherit stdenv lib buildGoPackage fetchFromGitHub; };
+  plugins = import ./providers { inherit lib buildGoPackage fetchFromGitHub; };
 in rec {
   terraform_0_8_5 = generic {
     version = "0.8.5";
diff --git a/pkgs/applications/networking/cluster/terraform/providers/default.nix b/pkgs/applications/networking/cluster/terraform/providers/default.nix
index 40117b45855..cf1649f7bb3 100644
--- a/pkgs/applications/networking/cluster/terraform/providers/default.nix
+++ b/pkgs/applications/networking/cluster/terraform/providers/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ lib, buildGoPackage, fetchFromGitHub }:
 let
   list = import ./data.nix;
 
diff --git a/pkgs/applications/networking/compactor/default.nix b/pkgs/applications/networking/compactor/default.nix
index 749b94f7b7e..d2b1a8eba36 100644
--- a/pkgs/applications/networking/compactor/default.nix
+++ b/pkgs/applications/networking/compactor/default.nix
@@ -1,4 +1,4 @@
-{ autoconf, automake, boost, cbor-diag, cddl, fetchFromGitHub, file, gcc, libpcap, libtins, libtool, lzma, openssl, pkgconfig, stdenv, tcpdump, wireshark-cli }:
+{ autoconf, automake, boost, cbor-diag, cddl, fetchFromGitHub, file, libpcap, libtins, libtool, lzma, openssl, pkgconfig, stdenv, tcpdump, wireshark-cli }:
 
 stdenv.mkDerivation rec {
   name = "compactor-${version}";
diff --git a/pkgs/applications/networking/drive/default.nix b/pkgs/applications/networking/drive/default.nix
index 826452016e7..113d6a2e5f4 100644
--- a/pkgs/applications/networking/drive/default.nix
+++ b/pkgs/applications/networking/drive/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ lib, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   name = "drive-${version}";
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix
index 9793fd234a1..aa7895ce148 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee-facebook/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, fetchFromGitHub, stdenv, bitlbee, autoconf, automake, libtool, pkgconfig, glib, json-glib }:
+{ fetchFromGitHub, stdenv, bitlbee, autoconf, automake, libtool, pkgconfig, glib, json-glib }:
 
 with stdenv.lib;
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix
index 1477d067464..a034827c4ed 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee-steam/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, fetchFromGitHub, stdenv, bitlbee, autoconf, automake, libtool, pkgconfig, glib, libgcrypt }:
+{ fetchFromGitHub, stdenv, bitlbee, autoconf, automake, libtool, pkgconfig, glib, libgcrypt }:
 
 with stdenv.lib;
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
index 0b2a97b5378..2ed7fbcee3b 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, fetchpatch, stdenv, gnutls, glib, pkgconfig, check, libotr, python,
+{ fetchurl, stdenv, gnutls, glib, pkgconfig, check, libotr, python,
 enableLibPurple ? false, pidgin ? null }:
 
 with stdenv.lib;
diff --git a/pkgs/applications/networking/instant-messengers/ekiga/default.nix b/pkgs/applications/networking/instant-messengers/ekiga/default.nix
index 003ffbfc7d1..f831ac0847c 100644
--- a/pkgs/applications/networking/instant-messengers/ekiga/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ekiga/default.nix
@@ -1,7 +1,7 @@
 { stdenv, glib, fetchurl, fetchpatch, cyrus_sasl, gettext, openldap, ptlib, opal, libXv, rarian, intltool
 , perl, perlXMLParser, evolution-data-server, gnome-doc-utils, avahi, autoreconfHook
 , libsigcxx, gtk, dbus-glib, libnotify, libXext, xextproto, gnome3, boost, libsecret
-, pkgconfig, libxml2, videoproto, unixODBC, db, nspr, nss, zlib, hicolor-icon-theme
+, pkgconfig, libxml2, videoproto, unixODBC, db, nspr, nss, zlib
 , libXrandr, randrproto, which, libxslt, libtasn1, gmp, nettle, sqlite, makeWrapper }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/instant-messengers/linphone/default.nix b/pkgs/applications/networking/instant-messengers/linphone/default.nix
index e0aecd2c810..1b257ea61dc 100644
--- a/pkgs/applications/networking/instant-messengers/linphone/default.nix
+++ b/pkgs/applications/networking/instant-messengers/linphone/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, intltool, pkgconfig, readline, openldap, cyrus_sasl, libupnp
+{ stdenv, intltool, pkgconfig, readline, openldap, cyrus_sasl, libupnp
 , zlib, libxml2, gtk2, libnotify, speex, ffmpeg, libX11, libsoup, udev
 , ortp, mediastreamer, sqlite, belle-sip, libosip, libexosip, bzrtp
 , mediastreamer-openh264, bctoolbox, makeWrapper, fetchFromGitHub, cmake
diff --git a/pkgs/applications/networking/instant-messengers/mikutter/default.nix b/pkgs/applications/networking/instant-messengers/mikutter/default.nix
index 6b17eb0a897..3c267e612a6 100644
--- a/pkgs/applications/networking/instant-messengers/mikutter/default.nix
+++ b/pkgs/applications/networking/instant-messengers/mikutter/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl
-, bundlerEnv, ruby, pkgconfig
+, bundlerEnv, ruby
 , alsaUtils, libnotify, which, wrapGAppsHook, gtk2
 }:
 
diff --git a/pkgs/applications/networking/instant-messengers/pidgin/wrapper.nix b/pkgs/applications/networking/instant-messengers/pidgin/wrapper.nix
index 914b3480a95..095f838fe98 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin/wrapper.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin/wrapper.nix
@@ -1,4 +1,4 @@
-{ stdenv, symlinkJoin, pidgin, makeWrapper, plugins }:
+{ symlinkJoin, pidgin, makeWrapper, plugins }:
 
 let
 extraArgs = map (x: x.wrapArgs or "") plugins;
diff --git a/pkgs/applications/networking/instant-messengers/pond/default.nix b/pkgs/applications/networking/instant-messengers/pond/default.nix
index 5d463648bd8..e7527bafcc6 100644
--- a/pkgs/applications/networking/instant-messengers/pond/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pond/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, lib, buildGoPackage, trousers, dclxvi, wrapGAppsHook, pkgconfig, gtk3, gtkspell3,
-  fetchgit, fetchhg, fetchbzr, fetchsvn }:
+{ stdenv, buildGoPackage, trousers, dclxvi, wrapGAppsHook, pkgconfig, gtk3, gtkspell3,
+  fetchgit }:
 
 let
   gui = true; # Might be implemented with nixpkgs config.
diff --git a/pkgs/applications/networking/instant-messengers/psi/default.nix b/pkgs/applications/networking/instant-messengers/psi/default.nix
index 7fabfa5f772..37d9de8794e 100644
--- a/pkgs/applications/networking/instant-messengers/psi/default.nix
+++ b/pkgs/applications/networking/instant-messengers/psi/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, enchant, qt4, zlib, sox, libX11, xproto, libSM
-, libICE, qca2, pkgconfig, callPackage, which, glib
+, libICE, qca2, pkgconfig, which, glib
 , libXScrnSaver, scrnsaverproto
 }:
 
diff --git a/pkgs/applications/networking/instant-messengers/ricochet/default.nix b/pkgs/applications/networking/instant-messengers/ricochet/default.nix
index c99130f28a3..a6aef5e6a2f 100644
--- a/pkgs/applications/networking/instant-messengers/ricochet/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ricochet/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, makeDesktopItem, unzip
+{ stdenv, fetchurl, pkgconfig, makeDesktopItem
 , qtbase, qttools, qtmultimedia, qtquick1, qtquickcontrols
 , openssl, protobuf, qmake
 }:
diff --git a/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix b/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix
index 024902a9c48..f858bb38dd1 100644
--- a/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ring-daemon/default.nix
@@ -30,7 +30,6 @@
 , openssl
 , perl
 , python3
-, bash
 , libupnp
 , speexdsp
 , fetchFromGitHub
diff --git a/pkgs/applications/networking/instant-messengers/riot/riot-web.nix b/pkgs/applications/networking/instant-messengers/riot/riot-web.nix
index dbf17d9cbdb..37ce34f09df 100644
--- a/pkgs/applications/networking/instant-messengers/riot/riot-web.nix
+++ b/pkgs/applications/networking/instant-messengers/riot/riot-web.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, fetchpatch, writeText, conf ? null }:
+{ lib, stdenv, fetchurl, writeText, conf ? null }:
 
 let configFile = writeText "riot-config.json" conf; in
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/instant-messengers/slack/default.nix b/pkgs/applications/networking/instant-messengers/slack/default.nix
index 32648ee34c9..7f7245152b7 100644
--- a/pkgs/applications/networking/instant-messengers/slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/slack/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, dpkg, makeWrapper
 , alsaLib, atk, cairo, cups, curl, dbus, expat, fontconfig, freetype, glib
 , gnome3, gtk3, gdk_pixbuf, libnotify, libxcb, nspr, nss, pango
-, systemd, wget, xorg }:
+, systemd, xorg }:
 
 let
 
diff --git a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
index 9354ae72821..39d664805fa 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
@@ -1,4 +1,4 @@
-{ qt5, stdenv }:
+{ qt5 }:
 
 let
   mkTelegram = args: qt5.callPackage (import ./generic.nix args) { };
diff --git a/pkgs/applications/networking/instant-messengers/utox/default.nix b/pkgs/applications/networking/instant-messengers/utox/default.nix
index e139904fee5..5955ecb60bd 100644
--- a/pkgs/applications/networking/instant-messengers/utox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/utox/default.nix
@@ -1,6 +1,6 @@
 { stdenv, lib, fetchFromGitHub, check, cmake, pkgconfig
 , libtoxcore, filter-audio, dbus, libvpx, libX11, openal, freetype, libv4l
-, libXrender, fontconfig, libXext, libXft, utillinux, libsodium, libopus }:
+, libXrender, fontconfig, libXext, libXft, libsodium, libopus }:
 
 stdenv.mkDerivation rec {
   name = "utox-${version}";
diff --git a/pkgs/applications/networking/instant-messengers/vacuum/default.nix b/pkgs/applications/networking/instant-messengers/vacuum/default.nix
index 9ed954cc7ec..9d5d5c1b80f 100644
--- a/pkgs/applications/networking/instant-messengers/vacuum/default.nix
+++ b/pkgs/applications/networking/instant-messengers/vacuum/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub
+{ stdenv, fetchFromGitHub
   , qt4, qmake4Hook, openssl
   , xproto, libX11, libXScrnSaver, scrnsaverproto
   , xz, zlib
diff --git a/pkgs/applications/networking/irc/irssi/otr/default.nix b/pkgs/applications/networking/irc/irssi/otr/default.nix
index 8d7bf677983..add4fa632c9 100644
--- a/pkgs/applications/networking/irc/irssi/otr/default.nix
+++ b/pkgs/applications/networking/irc/irssi/otr/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub, libotr, automake, autoconf, libtool, glib, pkgconfig, irssi }:
+{ stdenv, fetchFromGitHub, libotr, automake, autoconf, libtool, glib, pkgconfig, irssi }:
 
 with stdenv.lib;
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/irc/weechat/default.nix b/pkgs/applications/networking/irc/weechat/default.nix
index a672fa73c4f..dcd16c7c5b2 100644
--- a/pkgs/applications/networking/irc/weechat/default.nix
+++ b/pkgs/applications/networking/irc/weechat/default.nix
@@ -1,8 +1,8 @@
-{ stdenv, fetchurl, fetchpatch, lib
+{ stdenv, fetchurl, lib
 , ncurses, openssl, aspell, gnutls
 , zlib, curl, pkgconfig, libgcrypt
 , cmake, makeWrapper, libobjc, libresolv, libiconv
-, writeScriptBin, symlinkJoin # for withPlugins
+, writeScriptBin # for withPlugins
 , asciidoctor # manpages
 , guileSupport ? true, guile
 , luaSupport ? true, lua5
diff --git a/pkgs/applications/networking/mailreaders/alpine/default.nix b/pkgs/applications/networking/mailreaders/alpine/default.nix
index 3b45c2fd445..bb62014c77a 100644
--- a/pkgs/applications/networking/mailreaders/alpine/default.nix
+++ b/pkgs/applications/networking/mailreaders/alpine/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, ncurses, tcl, openssl, pam, pkgconfig, gettext, kerberos
+{stdenv, fetchurl, ncurses, tcl, openssl, pam, kerberos
 , openldap
 }:
 
diff --git a/pkgs/applications/networking/mailreaders/mailnag/default.nix b/pkgs/applications/networking/mailreaders/mailnag/default.nix
index 75f34952394..2b62db069bc 100644
--- a/pkgs/applications/networking/mailreaders/mailnag/default.nix
+++ b/pkgs/applications/networking/mailreaders/mailnag/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, gettext, gtk3, pythonPackages
 , gdk_pixbuf, libnotify, gst_all_1
-, libgnome-keyring3, networkmanager
+, libgnome-keyring3
 , wrapGAppsHook, gnome3
 # otherwise passwords are stored unencrypted
 , withGnomeKeyring ? true
diff --git a/pkgs/applications/networking/mailreaders/mailpile/default.nix b/pkgs/applications/networking/mailreaders/mailpile/default.nix
index 36dc94951d5..0f11d9a6df0 100644
--- a/pkgs/applications/networking/mailreaders/mailpile/default.nix
+++ b/pkgs/applications/networking/mailreaders/mailpile/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, python2Packages, gnupg1orig, makeWrapper, openssl, git }:
+{ stdenv, fetchFromGitHub, python2Packages, gnupg1orig, openssl, git }:
 
 python2Packages.buildPythonApplication rec {
   name = "mailpile-${version}";
diff --git a/pkgs/applications/networking/mailreaders/msgviewer/default.nix b/pkgs/applications/networking/mailreaders/msgviewer/default.nix
index 487b2799b98..6e2e8d58c67 100644
--- a/pkgs/applications/networking/mailreaders/msgviewer/default.nix
+++ b/pkgs/applications/networking/mailreaders/msgviewer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, makeWrapper, writeScript, unzip, jre }:
+{ stdenv, fetchurl, makeWrapper, unzip, jre }:
 
 let
   version = "1.9";
diff --git a/pkgs/applications/networking/mailreaders/nylas-mail-bin/default.nix b/pkgs/applications/networking/mailreaders/nylas-mail-bin/default.nix
index 766aab39ce3..e7e199155d7 100644
--- a/pkgs/applications/networking/mailreaders/nylas-mail-bin/default.nix
+++ b/pkgs/applications/networking/mailreaders/nylas-mail-bin/default.nix
@@ -1,4 +1,4 @@
-{ dpkg, fetchurl, lib, pkgs, stdenv, config
+{ dpkg, fetchurl, lib, pkgs, stdenv
 , alsaLib
 , atk
 , cairo
@@ -13,7 +13,6 @@
 , gdk_pixbuf
 , glib
 , gnome2
-, libgcrypt
 , libgnome-keyring
 , libnotify
 , makeWrapper
diff --git a/pkgs/applications/networking/mailreaders/realpine/default.nix b/pkgs/applications/networking/mailreaders/realpine/default.nix
index 728287f8c75..713f585d283 100644
--- a/pkgs/applications/networking/mailreaders/realpine/default.nix
+++ b/pkgs/applications/networking/mailreaders/realpine/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, ncurses, tcl, openssl, pam, pkgconfig, gettext, kerberos
+{stdenv, fetchurl, ncurses, tcl, openssl, pam, kerberos
 , openldap
 }:
 # NOTE: Please check if any changes here are applicable to ../alpine/ as well
diff --git a/pkgs/applications/networking/mailreaders/sup/default.nix b/pkgs/applications/networking/mailreaders/sup/default.nix
index b7ac621eb6d..06777916b92 100644
--- a/pkgs/applications/networking/mailreaders/sup/default.nix
+++ b/pkgs/applications/networking/mailreaders/sup/default.nix
@@ -1,5 +1,4 @@
-{ stdenv, lib, bundlerEnv, gpgme, ruby, ncurses, writeText, zlib, xapian
-, pkgconfig, which }:
+{ lib, bundlerEnv, ruby }:
 
 bundlerEnv {
   name = "sup-0.22.1";
diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 92161164485..85c98742af3 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -3,7 +3,7 @@
 , freetype, fontconfig, file, nspr, nss, libnotify
 , yasm, libGLU_combined, sqlite, unzip
 , hunspell, libevent, libstartup_notification
-, cairo, gstreamer, gst-plugins-base, icu, libpng, jemalloc
+, icu, libpng, jemalloc
 , autoconf213, which, m4
 , writeScript, xidel, common-updater-scripts, coreutils, gnused, gnugrep, curl
 , enableGTK3 ? false, gtk3, gnome3, wrapGAppsHook, makeWrapper
diff --git a/pkgs/applications/networking/newsreaders/pan/default.nix b/pkgs/applications/networking/newsreaders/pan/default.nix
index 916bd36ba54..4a1940ae654 100644
--- a/pkgs/applications/networking/newsreaders/pan/default.nix
+++ b/pkgs/applications/networking/newsreaders/pan/default.nix
@@ -1,6 +1,6 @@
 { spellChecking ? true
 , stdenv, fetchurl, pkgconfig, gtk3, gtkspell3 ? null
-, perl, pcre, gmime2, gettext, intltool, itstool, libxml2, dbus-glib, libnotify, gnutls
+, perl, gmime2, gettext, intltool, itstool, libxml2, dbus-glib, libnotify, gnutls
 , makeWrapper, gnupg
 , gnomeSupport ? true, libgnome-keyring3
 }:
diff --git a/pkgs/applications/networking/owamp/default.nix b/pkgs/applications/networking/owamp/default.nix
index 293c6716483..9ed532acfe1 100644
--- a/pkgs/applications/networking/owamp/default.nix
+++ b/pkgs/applications/networking/owamp/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, fetchFromGitHub
+{stdenv, fetchFromGitHub
 , autoconf, automake, mandoc }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/p2p/frostwire/default.nix b/pkgs/applications/networking/p2p/frostwire/default.nix
index 8cb5f768f95..7b854fce6c5 100644
--- a/pkgs/applications/networking/p2p/frostwire/default.nix
+++ b/pkgs/applications/networking/p2p/frostwire/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, gradle, perl, jre, makeWrapper, makeDesktopItem, mplayer }:
+{ stdenv, fetchFromGitHub, gradle, perl, jre, makeWrapper, makeDesktopItem, mplayer }:
 
 let
   version = "6.6.7-build-529";
diff --git a/pkgs/applications/networking/p2p/ktorrent/default.nix b/pkgs/applications/networking/p2p/ktorrent/default.nix
index 53485e95b9a..c66c3ca05a4 100644
--- a/pkgs/applications/networking/p2p/ktorrent/default.nix
+++ b/pkgs/applications/networking/p2p/ktorrent/default.nix
@@ -2,7 +2,7 @@
 , extra-cmake-modules, qtbase, qtscript
 , karchive, kcrash, kdnssd, ki18n, kio, knotifications, knotifyconfig
 , kdoctools, kross, kcmutils, kwindowsystem
-, libktorrent, boost, taglib, libgcrypt, kplotting
+, libktorrent, taglib, libgcrypt, kplotting
 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/p2p/retroshare/default.nix b/pkgs/applications/networking/p2p/retroshare/default.nix
index 950187ed9c6..34b4780633b 100644
--- a/pkgs/applications/networking/p2p/retroshare/default.nix
+++ b/pkgs/applications/networking/p2p/retroshare/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, cmake, libupnp, gpgme, gnome3, glib, libssh, pkgconfig, protobuf, bzip2
+{ stdenv, fetchFromGitHub, libupnp, gpgme, gnome3, glib, libssh, pkgconfig, protobuf, bzip2
 , libXScrnSaver, speex, curl, libxml2, libxslt, sqlcipher, libmicrohttpd, opencv, qmake, ffmpeg
 , qtmultimedia, qtx11extras, qttools }:
 
diff --git a/pkgs/applications/networking/p2p/soulseekqt/default.nix b/pkgs/applications/networking/p2p/soulseekqt/default.nix
index 315106ea852..e525c564c50 100644
--- a/pkgs/applications/networking/p2p/soulseekqt/default.nix
+++ b/pkgs/applications/networking/p2p/soulseekqt/default.nix
@@ -1,8 +1,8 @@
 { stdenv
 , fetchurl
 , dbus
-, expat, zlib, fontconfig
-, libpng, libX11, libxcb, libXau, libXdmcp, freetype, libbsd
+, zlib, fontconfig
+, libX11, libxcb, libXau, libXdmcp, freetype, libbsd
 }:
 
 with stdenv.lib;
diff --git a/pkgs/applications/networking/p2p/transmission/default.nix b/pkgs/applications/networking/p2p/transmission/default.nix
index d8fc1d840d2..d9ddf045921 100644
--- a/pkgs/applications/networking/p2p/transmission/default.nix
+++ b/pkgs/applications/networking/p2p/transmission/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, pkgconfig, intltool, file, wrapGAppsHook
+{ stdenv, fetchurl, pkgconfig, intltool, file, wrapGAppsHook
 , openssl, curl, libevent, inotify-tools, systemd, zlib
 , enableGTK3 ? false, gtk3
 , enableSystemd ? stdenv.isLinux
diff --git a/pkgs/applications/networking/p2p/tribler/default.nix b/pkgs/applications/networking/p2p/tribler/default.nix
index aa42af5ccbd..1169dba188c 100644
--- a/pkgs/applications/networking/p2p/tribler/default.nix
+++ b/pkgs/applications/networking/p2p/tribler/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pythonPackages, makeWrapper, nettools, libtorrentRasterbar, imagemagick
+{ stdenv, fetchurl, pythonPackages, makeWrapper, libtorrentRasterbar, imagemagick
 , enablePlayer ? true, vlc ? null, qt5 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/pyload/default.nix b/pkgs/applications/networking/pyload/default.nix
index c331c4f287e..6a89731ff10 100644
--- a/pkgs/applications/networking/pyload/default.nix
+++ b/pkgs/applications/networking/pyload/default.nix
@@ -1,5 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, pythonPackages, gocr, unrar, rhino, spidermonkey
-, pkgs }:
+{ stdenv, fetchFromGitHub, fetchpatch, pythonPackages, gocr, unrar, rhino, spidermonkey }:
 
 let
   beautifulsoup = pythonPackages.callPackage ./beautifulsoup.nix {
diff --git a/pkgs/applications/networking/remote/anydesk/default.nix b/pkgs/applications/networking/remote/anydesk/default.nix
index 19e85a9711d..0f107936be6 100644
--- a/pkgs/applications/networking/remote/anydesk/default.nix
+++ b/pkgs/applications/networking/remote/anydesk/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, autoPatchelfHook, makeWrapper, makeDesktopItem
-, atk, cairo, freetype, gdk_pixbuf, glib, gnome2, gtk2, libGLU_combined, pango, xorg
+{ stdenv, fetchurl, makeWrapper, makeDesktopItem
+, atk, cairo, gdk_pixbuf, glib, gnome2, gtk2, libGLU_combined, pango, xorg
 , lsb-release }:
 
 let
diff --git a/pkgs/applications/networking/remote/freerdp/legacy.nix b/pkgs/applications/networking/remote/freerdp/legacy.nix
index d3746fa6c7a..9830b846525 100644
--- a/pkgs/applications/networking/remote/freerdp/legacy.nix
+++ b/pkgs/applications/networking/remote/freerdp/legacy.nix
@@ -14,10 +14,9 @@
 , ffmpeg
 , libxkbfile
 #, xmlto, docbook_xml_dtd_412, docbook_xml_xslt
-, libXfixes
 , libXinerama
 , libXv
-, pulseaudioSupport ? true, libpulseaudio
+, pulseaudioSupport ? true
 }:
 
 assert printerSupport -> cups != null;
diff --git a/pkgs/applications/networking/remote/ssvnc/default.nix b/pkgs/applications/networking/remote/ssvnc/default.nix
index 1d1d6f4e1e3..f20bb740615 100644
--- a/pkgs/applications/networking/remote/ssvnc/default.nix
+++ b/pkgs/applications/networking/remote/ssvnc/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, imake, zlib, jdk, libX11, libXt, libXmu
-, libXaw, libXext, libXpm, openjpeg, openssl, tcl, tk, perl }:
+, libXaw, libXext, libXpm, openjpeg, openssl, tk, perl }:
 
 stdenv.mkDerivation rec {
   name = "ssvnc-${version}";
diff --git a/pkgs/applications/networking/remote/teamviewer/default.nix b/pkgs/applications/networking/remote/teamviewer/default.nix
index 5365228ae65..e4715cce8e1 100644
--- a/pkgs/applications/networking/remote/teamviewer/default.nix
+++ b/pkgs/applications/networking/remote/teamviewer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, autoPatchelfHook, makeWrapper, xdg_utils, dbus, qtbase, qtwebkit, qtx11extras, qtquickcontrols, glibc, libXrandr, libX11 }:
+{ stdenv, fetchurl, autoPatchelfHook, makeWrapper, xdg_utils, dbus, qtbase, qtwebkit, qtx11extras, qtquickcontrols, glibc, libXrandr, libX11 }:
 
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/remote/xrdp/default.nix b/pkgs/applications/networking/remote/xrdp/default.nix
index 3061467c82b..a778042c2ea 100644
--- a/pkgs/applications/networking/remote/xrdp/default.nix
+++ b/pkgs/applications/networking/remote/xrdp/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, pkgconfig, which, perl, autoconf, automake, libtool, openssl, systemd, pam, fuse, libjpeg, libopus, nasm, xorg }:
+{ stdenv, fetchFromGitHub, pkgconfig, which, perl, autoconf, automake, libtool, openssl, systemd, pam, fuse, libjpeg, libopus, nasm, xorg }:
 
 let
   xorgxrdp = stdenv.mkDerivation rec {
diff --git a/pkgs/applications/networking/seafile-client/default.nix b/pkgs/applications/networking/seafile-client/default.nix
index ea0a756e76d..a1f1d50e5be 100644
--- a/pkgs/applications/networking/seafile-client/default.nix
+++ b/pkgs/applications/networking/seafile-client/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, writeScript, pkgconfig, cmake, qtbase, qttools
+{ stdenv, fetchFromGitHub, pkgconfig, cmake, qtbase, qttools
 , seafile-shared, ccnet, makeWrapper
 , withShibboleth ? true, qtwebengine }:
 
diff --git a/pkgs/applications/networking/sniffers/wireshark/default.nix b/pkgs/applications/networking/sniffers/wireshark/default.nix
index ef1dade4ddd..5232704cd36 100644
--- a/pkgs/applications/networking/sniffers/wireshark/default.nix
+++ b/pkgs/applications/networking/sniffers/wireshark/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, lib, fetchurl, pkgconfig, pcre, perl, flex, bison, gettext, libpcap, libnl, c-ares
-, gnutls, libgcrypt, libgpgerror, geoip, openssl, lua5, makeDesktopItem, python, libcap, glib
+{ stdenv, fetchurl, pkgconfig, pcre, perl, flex, bison, gettext, libpcap, libnl, c-ares
+, gnutls, libgcrypt, libgpgerror, geoip, openssl, lua5, python, libcap, glib
 , libssh, zlib, cmake, extra-cmake-modules, fetchpatch, makeWrapper
 , withGtk ? false, gtk3 ? null, librsvg ? null, gsettings-desktop-schemas ? null, wrapGAppsHook ? null
 , withQt ? false, qt5 ? null
diff --git a/pkgs/applications/networking/super-productivity/default.nix b/pkgs/applications/networking/super-productivity/default.nix
index 251bef91360..5519ba41ac7 100644
--- a/pkgs/applications/networking/super-productivity/default.nix
+++ b/pkgs/applications/networking/super-productivity/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, dpkg, makeWrapper
 , alsaLib, atk, cairo, cups, curl, dbus, expat, fontconfig, freetype, glib
 , gnome3, gtk3, gdk_pixbuf, libnotify, libxcb, nspr, nss, pango
-, systemd, wget, xorg, xprintidle-ng }:
+, systemd, xorg, xprintidle-ng }:
 
 let
 
diff --git a/pkgs/applications/networking/sync/backintime/qt4.nix b/pkgs/applications/networking/sync/backintime/qt4.nix
index b8f388c63eb..26288f9f6e6 100644
--- a/pkgs/applications/networking/sync/backintime/qt4.nix
+++ b/pkgs/applications/networking/sync/backintime/qt4.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, makeWrapper, gettext, pkgconfig, libtool, backintime-common, python3, python3Packages }:
+{stdenv, makeWrapper, gettext, backintime-common, python3, python3Packages }:
 
 stdenv.mkDerivation rec {
   inherit (backintime-common) version src installFlags;
diff --git a/pkgs/applications/networking/sync/casync/default.nix b/pkgs/applications/networking/sync/casync/default.nix
index 82dd3a506de..bea6a0780ed 100644
--- a/pkgs/applications/networking/sync/casync/default.nix
+++ b/pkgs/applications/networking/sync/casync/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch
+{ stdenv, fetchFromGitHub
 , meson, ninja, pkgconfig, sphinx
 , acl, curl, fuse, libselinux, udev, xz, zstd
 , fuseSupport ? true
diff --git a/pkgs/applications/networking/sync/rsync/base.nix b/pkgs/applications/networking/sync/rsync/base.nix
index abc1f27e4f6..fc4bc6c0671 100644
--- a/pkgs/applications/networking/sync/rsync/base.nix
+++ b/pkgs/applications/networking/sync/rsync/base.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch }:
+{ stdenv, fetchurl }:
 
 rec {
   version = "3.1.3";
diff --git a/pkgs/applications/networking/sync/rsync/default.nix b/pkgs/applications/networking/sync/rsync/default.nix
index f1e3f6b7301..0b4d580cd20 100644
--- a/pkgs/applications/networking/sync/rsync/default.nix
+++ b/pkgs/applications/networking/sync/rsync/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, perl, libiconv, zlib, popt
+{ stdenv, fetchurl, perl, libiconv, zlib, popt
 , enableACLs ? true, acl ? null
 , enableCopyDevicesPatch ? false
 }:
@@ -6,7 +6,7 @@
 assert enableACLs -> acl != null;
 
 let
-  base = import ./base.nix { inherit stdenv fetchurl fetchpatch; };
+  base = import ./base.nix { inherit stdenv fetchurl; };
 in
 stdenv.mkDerivation rec {
   name = "rsync-${base.version}";
diff --git a/pkgs/applications/networking/sync/rsync/rrsync.nix b/pkgs/applications/networking/sync/rsync/rrsync.nix
index bc2a6eb9c3c..e5c04798aab 100644
--- a/pkgs/applications/networking/sync/rsync/rrsync.nix
+++ b/pkgs/applications/networking/sync/rsync/rrsync.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, fetchpatch, perl, rsync }:
 
 let
-  base = import ./base.nix { inherit stdenv fetchurl fetchpatch; };
+  base = import ./base.nix { inherit stdenv fetchurl; };
 in
 stdenv.mkDerivation rec {
   name = "rrsync-${base.version}";
diff --git a/pkgs/applications/networking/znc/modules.nix b/pkgs/applications/networking/znc/modules.nix
index 4b68285c3f1..a799df2d1ed 100644
--- a/pkgs/applications/networking/znc/modules.nix
+++ b/pkgs/applications/networking/znc/modules.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub, znc }:
+{ stdenv, fetchFromGitHub, znc }:
 
 let
   zncDerivation = a@{
diff --git a/pkgs/applications/office/autokey/default.nix b/pkgs/applications/office/autokey/default.nix
index fdff39e27f9..0a6268f8452 100644
--- a/pkgs/applications/office/autokey/default.nix
+++ b/pkgs/applications/office/autokey/default.nix
@@ -1,5 +1,5 @@
 { lib, python3Packages, fetchFromGitHub, wrapGAppsHook, gobjectIntrospection
-, gtksourceview, gnome3, libappindicator-gtk3, libnotify }:
+, gnome3, libappindicator-gtk3, libnotify }:
 
 python3Packages.buildPythonApplication rec {
   name = "autokey-${version}";
diff --git a/pkgs/applications/office/calligra/default.nix b/pkgs/applications/office/calligra/default.nix
index 80046ecb2cd..a7c6165bdd2 100644
--- a/pkgs/applications/office/calligra/default.nix
+++ b/pkgs/applications/office/calligra/default.nix
@@ -1,5 +1,5 @@
 {
-  mkDerivation, lib, fetchurl, fetchpatch, extra-cmake-modules, kdoctools, makeWrapper,
+  mkDerivation, lib, fetchurl, extra-cmake-modules, kdoctools, makeWrapper,
   boost, qtwebkit, qtx11extras, shared-mime-info,
   breeze-icons, kactivities, karchive, kcodecs, kcompletion, kconfig, kconfigwidgets,
   kcoreaddons, kdbusaddons, kdiagram, kguiaddons, khtml, ki18n,
diff --git a/pkgs/applications/office/impressive/default.nix b/pkgs/applications/office/impressive/default.nix
index 92feb6618c9..8946bbab931 100644
--- a/pkgs/applications/office/impressive/default.nix
+++ b/pkgs/applications/office/impressive/default.nix
@@ -1,5 +1,5 @@
 { fetchurl, stdenv, python2, makeWrapper, lib
-, libGLU_combined, SDL, freeglut, ghostscript, pdftk, dejavu_fonts }:
+, SDL, ghostscript, pdftk, dejavu_fonts }:
 
 let
   version = "0.12.0";
diff --git a/pkgs/applications/office/libreoffice/default.nix b/pkgs/applications/office/libreoffice/default.nix
index e3ff0b594b4..43258282ac0 100644
--- a/pkgs/applications/office/libreoffice/default.nix
+++ b/pkgs/applications/office/libreoffice/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pam, python3, libxslt, perl, ArchiveZip, gettext
-, CompressZlib, zlib, libjpeg, expat, pkgconfigUpstream, freetype, libwpd
+, CompressZlib, zlib, libjpeg, expat, freetype, libwpd
 , libxml2, db, sablotron, curl, fontconfig, libsndfile, neon
 , bison, flex, zip, unzip, gtk3, gtk2, libmspack, getopt, file, cairo, which
 , icu, boost, jdk, ant, cups, xorg, libcmis
@@ -8,7 +8,7 @@
 , autoconf, automake, openldap, bash, hunspell, librdf_redland, nss, nspr
 , libwpg, dbus-glib, glibc, qt4, clucene_core, libcdr, lcms, vigra
 , unixODBC, mdds, sane-backends, mythes, libexttextcat, libvisio
-, fontsConf, pkgconfig, libzip, bluez5, libtool, maven, carlito
+, fontsConf, pkgconfig, bluez5, libtool, carlito
 , libatomic_ops, graphite2, harfbuzz, libodfgen, libzmf
 , librevenge, libe-book, libmwaw, glm, glew, gst_all_1
 , gdb, commonsLogging, librdf_rasqal, wrapGAppsHook
diff --git a/pkgs/applications/office/libreoffice/still.nix b/pkgs/applications/office/libreoffice/still.nix
index dbfeb0f2fe8..7a2538e4bcd 100644
--- a/pkgs/applications/office/libreoffice/still.nix
+++ b/pkgs/applications/office/libreoffice/still.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pam, python3, libxslt, perl, ArchiveZip
-, CompressZlib, zlib, libjpeg, expat, pkgconfigUpstream, freetype, libwpd
+, CompressZlib, zlib, libjpeg, expat, freetype, libwpd
 , libxml2, db, sablotron, curl, fontconfig, libsndfile, neon
 , bison, flex, zip, unzip, gtk3, gtk2, libmspack, getopt, file, cairo, which
 , icu, boost, jdk, ant, cups, xorg, libcmis, carlito
@@ -8,7 +8,7 @@
 , autoconf, automake, openldap, bash, hunspell, librdf_redland, nss, nspr
 , libwpg, dbus-glib, glibc, qt4, clucene_core, libcdr, lcms, vigra
 , unixODBC, mdds, sane-backends, mythes, libexttextcat, libvisio
-, fontsConf, pkgconfig, libzip, bluez5, libtool, maven
+, fontsConf, pkgconfig, bluez5, libtool
 , libatomic_ops, graphite2, harfbuzz, libodfgen, libzmf
 , librevenge, libe-book, libmwaw, glm, glew, gst_all_1
 , gdb, commonsLogging, librdf_rasqal, wrapGAppsHook
diff --git a/pkgs/applications/office/moneyplex/default.nix b/pkgs/applications/office/moneyplex/default.nix
index 31de4db76f1..47d2ecc81ea 100644
--- a/pkgs/applications/office/moneyplex/default.nix
+++ b/pkgs/applications/office/moneyplex/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, patchelf, libredirect, coreutils, pcsclite
+{ stdenv, fetchurl, patchelf, coreutils, pcsclite
 , zlib, glib, gdk_pixbuf, gtk2, cairo, pango, libX11, atk, openssl }:
 
 let
diff --git a/pkgs/applications/office/timetrap/default.nix b/pkgs/applications/office/timetrap/default.nix
index 3564454a674..20dd27fa287 100644
--- a/pkgs/applications/office/timetrap/default.nix
+++ b/pkgs/applications/office/timetrap/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, bundlerEnv, ruby }:
+{ lib, bundlerEnv, ruby }:
 
 bundlerEnv rec {
   name = "timetrap-${version}";
diff --git a/pkgs/applications/office/trytond/default.nix b/pkgs/applications/office/trytond/default.nix
index d1b3cb1b1a1..59c58a3af13 100644
--- a/pkgs/applications/office/trytond/default.nix
+++ b/pkgs/applications/office/trytond/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python2Packages
+{ stdenv, python2Packages
 , withPostgresql ? true }:
 
 with stdenv.lib;
diff --git a/pkgs/applications/office/wpsoffice/default.nix b/pkgs/applications/office/wpsoffice/default.nix
index a55a98b1f5e..46faf9ba651 100644
--- a/pkgs/applications/office/wpsoffice/default.nix
+++ b/pkgs/applications/office/wpsoffice/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub
+{ stdenv, fetchurl
 , libX11, glib, xorg, fontconfig, freetype
 , zlib, libpng12, libICE, libXrender, cups }:
 
diff --git a/pkgs/applications/office/zim/default.nix b/pkgs/applications/office/zim/default.nix
index 9f7048f3646..26a141dc506 100644
--- a/pkgs/applications/office/zim/default.nix
+++ b/pkgs/applications/office/zim/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, python2Packages }:
+{ stdenv, fetchurl, python2Packages }:
 
 #
 # TODO: Declare configuration options for the following optional dependencies:
diff --git a/pkgs/applications/science/astronomy/celestia/default.nix b/pkgs/applications/science/astronomy/celestia/default.nix
index 589625cc18f..e3ceffd34c1 100644
--- a/pkgs/applications/science/astronomy/celestia/default.nix
+++ b/pkgs/applications/science/astronomy/celestia/default.nix
@@ -1,6 +1,5 @@
 { stdenv, fetchurl, freeglut, gtk2, gtkglext, libjpeg_turbo, libtheora, libXmu
-, lua, libGLU_combined, pkgconfig, perl, autoreconfHook, glib, cairo
-, pango, gdk_pixbuf, atk
+, lua, libGLU_combined, pkgconfig, perl, autoreconfHook
 }:
 
 let
diff --git a/pkgs/applications/science/astronomy/stellarium/default.nix b/pkgs/applications/science/astronomy/stellarium/default.nix
index 11160812671..24d6246e90c 100644
--- a/pkgs/applications/science/astronomy/stellarium/default.nix
+++ b/pkgs/applications/science/astronomy/stellarium/default.nix
@@ -1,5 +1,5 @@
 { mkDerivation, lib, fetchFromGitHub
-, cmake, freetype, libpng, libGLU_combined, gettext, openssl, perl, libiconv
+, cmake, freetype, libpng, libGLU_combined, openssl, perl, libiconv
 , qtscript, qtserialport, qttools
 , qtmultimedia, qtlocation, makeWrapper, qtbase
 }:
diff --git a/pkgs/applications/science/biology/diamond/default.nix b/pkgs/applications/science/biology/diamond/default.nix
index a45e5df2f52..854e91b2fcb 100644
--- a/pkgs/applications/science/biology/diamond/default.nix
+++ b/pkgs/applications/science/biology/diamond/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, cmake, gcc, zlib }:
+{ stdenv, fetchurl, cmake, zlib }:
 
 stdenv.mkDerivation rec {
   name = "diamond-0.8.36";
diff --git a/pkgs/applications/science/biology/freebayes/default.nix b/pkgs/applications/science/biology/freebayes/default.nix
index 99d2dfa55dd..1a15dcf6197 100644
--- a/pkgs/applications/science/biology/freebayes/default.nix
+++ b/pkgs/applications/science/biology/freebayes/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, cmake, gcc, zlib, bzip2, lzma }:
+{ stdenv, fetchFromGitHub, zlib, bzip2, lzma }:
 
 stdenv.mkDerivation rec {
   name    = "freebayes-${version}";
diff --git a/pkgs/applications/science/biology/mosdepth/default.nix b/pkgs/applications/science/biology/mosdepth/default.nix
index 05cd7992aa9..4b4920a6ca3 100644
--- a/pkgs/applications/science/biology/mosdepth/default.nix
+++ b/pkgs/applications/science/biology/mosdepth/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchFromGitHub, nim, htslib, patchelf, pcre}:
+{stdenv, fetchFromGitHub, nim, htslib, pcre}:
 
 let
   hts-nim = fetchFromGitHub {
diff --git a/pkgs/applications/science/biology/raxml/default.nix b/pkgs/applications/science/biology/raxml/default.nix
index efe19a4e2b6..140f7032319 100644
--- a/pkgs/applications/science/biology/raxml/default.nix
+++ b/pkgs/applications/science/biology/raxml/default.nix
@@ -1,6 +1,5 @@
 { stdenv
 , fetchFromGitHub
-, zlib
 , pkgs
 , mpi ? false
 }:
diff --git a/pkgs/applications/science/biology/vcftools/default.nix b/pkgs/applications/science/biology/vcftools/default.nix
index ab3050955df..394973692dc 100755
--- a/pkgs/applications/science/biology/vcftools/default.nix
+++ b/pkgs/applications/science/biology/vcftools/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, htslib, zlib, autoreconfHook, pkgconfig, perl }:
+{ stdenv, fetchFromGitHub, zlib, autoreconfHook, pkgconfig, perl }:
 
 stdenv.mkDerivation rec {
   name = "${pname}-${version}";
diff --git a/pkgs/applications/science/electronics/adms/default.nix b/pkgs/applications/science/electronics/adms/default.nix
index 99b7ef79594..236225959f7 100644
--- a/pkgs/applications/science/electronics/adms/default.nix
+++ b/pkgs/applications/science/electronics/adms/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, libtool, autoreconfHook, flex, bison, gperf,
+{ stdenv, fetchFromGitHub, autoreconfHook, flex, bison, gperf,
   libxml2, perl, perlPackages, gd }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/science/electronics/bitscope/common.nix b/pkgs/applications/science/electronics/bitscope/common.nix
index ba2d5221cc5..64777b5a0ac 100644
--- a/pkgs/applications/science/electronics/bitscope/common.nix
+++ b/pkgs/applications/science/electronics/bitscope/common.nix
@@ -2,14 +2,12 @@
 , buildFHSUserEnv
 , cairo
 , dpkg
-, fetchurl
 , gdk_pixbuf
 , glib
 , gtk2-x11
 , makeWrapper
 , pango
 , stdenv
-, writeTextFile
 , xorg
 }:
 
diff --git a/pkgs/applications/science/electronics/bitscope/packages.nix b/pkgs/applications/science/electronics/bitscope/packages.nix
index dc333f3d3b7..58e01f4f9f4 100644
--- a/pkgs/applications/science/electronics/bitscope/packages.nix
+++ b/pkgs/applications/science/electronics/bitscope/packages.nix
@@ -1,8 +1,5 @@
-{ buildFHSUserEnv
-, callPackage
+{ callPackage
 , fetchurl
-, makeWrapper
-, stdenv
 }:
 
 let
diff --git a/pkgs/applications/science/electronics/kicad/default.nix b/pkgs/applications/science/electronics/kicad/default.nix
index 8e98bad55c3..e3244ec339e 100644
--- a/pkgs/applications/science/electronics/kicad/default.nix
+++ b/pkgs/applications/science/electronics/kicad/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchbzr, cmake, libGLU_combined, wxGTK, zlib, libX11, gettext, glew, cairo, curl, openssl, boost, pkgconfig, doxygen }:
+{ stdenv, fetchurl, cmake, libGLU_combined, wxGTK, zlib, libX11, gettext, glew, cairo, curl, openssl, boost, pkgconfig, doxygen }:
 
 stdenv.mkDerivation rec {
   name = "kicad-${version}";
diff --git a/pkgs/applications/science/electronics/librepcb/default.nix b/pkgs/applications/science/electronics/librepcb/default.nix
index 48afb5bf9dc..33eb52c18ee 100644
--- a/pkgs/applications/science/electronics/librepcb/default.nix
+++ b/pkgs/applications/science/electronics/librepcb/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, qtbase, qttools, qmake, libGLU_combined, openssl, zlib }:
+{ stdenv, fetchFromGitHub, qtbase, qttools, qmake }:
 
 stdenv.mkDerivation rec {
   name = "librepcb-${version}";
diff --git a/pkgs/applications/science/logic/aspino/default.nix b/pkgs/applications/science/logic/aspino/default.nix
index 5e1a448a7cf..d7a5e7b4c83 100644
--- a/pkgs/applications/science/logic/aspino/default.nix
+++ b/pkgs/applications/science/logic/aspino/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub, zlib, boost, glucose }:
+{ stdenv, fetchurl, fetchFromGitHub, zlib, boost }:
 
 let
   glucose' = fetchurl {
diff --git a/pkgs/applications/science/logic/coq2html/default.nix b/pkgs/applications/science/logic/coq2html/default.nix
index 9687ac66ead..a987bf1ba57 100644
--- a/pkgs/applications/science/logic/coq2html/default.nix
+++ b/pkgs/applications/science/logic/coq2html/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, make, fetchgit, ocaml }:
+{ stdenv, make, fetchgit, ocaml }:
 
 let 
   version = "20170720";
diff --git a/pkgs/applications/science/logic/elan/default.nix b/pkgs/applications/science/logic/elan/default.nix
index ff737de0cc4..2b7cb9c30fa 100644
--- a/pkgs/applications/science/logic/elan/default.nix
+++ b/pkgs/applications/science/logic/elan/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, pkgconfig, curl, openssl, zlib, fetchFromGitHub, rustPlatform }:
+{ stdenv, pkgconfig, curl, openssl, zlib, fetchFromGitHub, rustPlatform }:
 
 rustPlatform.buildRustPackage rec {
   name = "elan-${version}";
diff --git a/pkgs/applications/science/logic/hol_light/default.nix b/pkgs/applications/science/logic/hol_light/default.nix
index 8d7c11ee91b..a1779baf5f8 100644
--- a/pkgs/applications/science/logic/hol_light/default.nix
+++ b/pkgs/applications/science/logic/hol_light/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, writeScript, ocaml, camlp5 }:
+{ stdenv, fetchFromGitHub, fetchpatch, ocaml, camlp5 }:
 
 let
   start_script = ''
diff --git a/pkgs/applications/science/logic/lean2/default.nix b/pkgs/applications/science/logic/lean2/default.nix
index 2b861b6d06d..4e1415d3961 100644
--- a/pkgs/applications/science/logic/lean2/default.nix
+++ b/pkgs/applications/science/logic/lean2/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, cmake, gmp, mpfr, boost, python
+{ stdenv, fetchFromGitHub, cmake, gmp, mpfr, python
 , gperftools, ninja, makeWrapper }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/science/logic/mcrl2/default.nix b/pkgs/applications/science/logic/mcrl2/default.nix
index 6d9549b526f..dc32e84279a 100644
--- a/pkgs/applications/science/logic/mcrl2/default.nix
+++ b/pkgs/applications/science/logic/mcrl2/default.nix
@@ -1,5 +1,4 @@
-{stdenv, fetchurl, cmake, subversion, libGLU_combined, qt5, boost,
- python27, python27Packages}:
+{stdenv, fetchurl, cmake, libGLU_combined, qt5, boost}:
 
 stdenv.mkDerivation rec {
   version = "201707";
diff --git a/pkgs/applications/science/logic/saw-tools/default.nix b/pkgs/applications/science/logic/saw-tools/default.nix
index 949b34420b7..65d2b4d91c3 100644
--- a/pkgs/applications/science/logic/saw-tools/default.nix
+++ b/pkgs/applications/science/logic/saw-tools/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, gmp4, ncurses, zlib, makeWrapper, clang_35 }:
+{ stdenv, fetchurl, gmp4, ncurses, zlib, clang_35 }:
 
 let
   libPath = stdenv.lib.makeLibraryPath
diff --git a/pkgs/applications/science/logic/tamarin-prover/default.nix b/pkgs/applications/science/logic/tamarin-prover/default.nix
index fb37554b65f..4efc384ed22 100644
--- a/pkgs/applications/science/logic/tamarin-prover/default.nix
+++ b/pkgs/applications/science/logic/tamarin-prover/default.nix
@@ -1,4 +1,4 @@
-{ haskell, haskellPackages, mkDerivation, fetchFromGitHub, lib
+{ haskellPackages, mkDerivation, fetchFromGitHub, lib
 # the following are non-haskell dependencies
 , makeWrapper, which, maude, graphviz, sapic
 }:
diff --git a/pkgs/applications/science/logic/tlaplus/tlaps.nix b/pkgs/applications/science/logic/tlaplus/tlaps.nix
index 9a78c1df8b1..7d35f5f91df 100644
--- a/pkgs/applications/science/logic/tlaplus/tlaps.nix
+++ b/pkgs/applications/science/logic/tlaplus/tlaps.nix
@@ -1,8 +1,6 @@
-{ lib
-, fetchurl
-, makeWrapper
+{ fetchurl
 , stdenv
-, ocaml, gawk, isabelle, cvc3, perl, wget, which
+, ocaml, isabelle, cvc3, perl, wget, which
 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/science/logic/workcraft/default.nix b/pkgs/applications/science/logic/workcraft/default.nix
index b677927a8ef..313fe5a9f1d 100644
--- a/pkgs/applications/science/logic/workcraft/default.nix
+++ b/pkgs/applications/science/logic/workcraft/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, fetchurl, jre, makeWrapper }:
+{ stdenv, fetchurl, jre, makeWrapper }:
 
 stdenv.mkDerivation rec {
   name = "workcraft-${version}";
diff --git a/pkgs/applications/science/machine-learning/torch/torch-distro.nix b/pkgs/applications/science/machine-learning/torch/torch-distro.nix
index 85a4aa02e44..9c4f2402143 100644
--- a/pkgs/applications/science/machine-learning/torch/torch-distro.nix
+++ b/pkgs/applications/science/machine-learning/torch/torch-distro.nix
@@ -1,6 +1,6 @@
-{ luarocks, lib , stdenv,  writeText , readline,  makeWrapper,
-  less, ncurses, cmake, openblas, coreutils, fetchgit, libuuid, czmq, openssl,
-  gnuplot, fetchurl, lua, src, libjpeg, libpng
+{ luarocks, lib , stdenv,  readline,  makeWrapper,
+  less, ncurses, cmake, coreutils, fetchgit, libuuid, czmq, openssl,
+  gnuplot, lua, src, libjpeg, libpng
 } :
 
 let
diff --git a/pkgs/applications/science/math/R/default.nix b/pkgs/applications/science/math/R/default.nix
index 25ebee96a10..913fac6ac12 100644
--- a/pkgs/applications/science/math/R/default.nix
+++ b/pkgs/applications/science/math/R/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, bzip2, gfortran, libX11, libXmu, libXt, libjpeg, libpng
 , libtiff, ncurses, pango, pcre, perl, readline, tcl, texLive, tk, xz, zlib
 , less, texinfo, graphviz, icu, pkgconfig, bison, imake, which, jdk, openblas
-, curl, Cocoa, Foundation, cf-private, libobjc, libcxx, tzdata, fetchpatch
+, curl, Cocoa, Foundation, libobjc, libcxx, tzdata
 , withRecommendedPackages ? true
 , enableStrictBarrier ? false
 }:
diff --git a/pkgs/applications/science/math/cntk/default.nix b/pkgs/applications/science/math/cntk/default.nix
index 07740f4c8ae..fe5c77be8b2 100644
--- a/pkgs/applications/science/math/cntk/default.nix
+++ b/pkgs/applications/science/math/cntk/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchgit, fetchFromGitHub, fetchpatch, cmake
+{ lib, stdenv, fetchgit, fetchFromGitHub, cmake
 , openblas, opencv3, libzip, boost, protobuf, openmpi
 , onebitSGDSupport ? false
 , cudaSupport ? false, cudatoolkit, nvidia_x11
diff --git a/pkgs/applications/science/math/colpack/default.nix b/pkgs/applications/science/math/colpack/default.nix
index 29785363b04..e62df7f11cc 100644
--- a/pkgs/applications/science/math/colpack/default.nix
+++ b/pkgs/applications/science/math/colpack/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, autoconf, automake, libtool, gettext }:
+{ stdenv, fetchFromGitHub, autoconf, automake, libtool, gettext }:
 
 stdenv.mkDerivation rec {
 
diff --git a/pkgs/applications/science/math/mathematica/10.nix b/pkgs/applications/science/math/mathematica/10.nix
index 6a49976c86b..4884ee1f93a 100644
--- a/pkgs/applications/science/math/mathematica/10.nix
+++ b/pkgs/applications/science/math/mathematica/10.nix
@@ -7,13 +7,11 @@
 , freetype
 , gcc
 , glib
-, libpng
 , ncurses
 , opencv
 , openssl
 , unixODBC
 , xorg
-, zlib
 , libxml2
 , libuuid
 }:
diff --git a/pkgs/applications/science/math/mathematica/9.nix b/pkgs/applications/science/math/mathematica/9.nix
index c4fd0c384c1..d60feb54695 100644
--- a/pkgs/applications/science/math/mathematica/9.nix
+++ b/pkgs/applications/science/math/mathematica/9.nix
@@ -7,13 +7,11 @@
 , freetype
 , gcc
 , glib
-, libpng
 , ncurses
 , opencv
 , openssl
 , unixODBC
 , xorg
-, zlib
 }:
 
 let
diff --git a/pkgs/applications/science/math/mathematica/default.nix b/pkgs/applications/science/math/mathematica/default.nix
index d2a518e9db0..fa4ff8b0068 100644
--- a/pkgs/applications/science/math/mathematica/default.nix
+++ b/pkgs/applications/science/math/mathematica/default.nix
@@ -8,7 +8,6 @@
 , freetype
 , gcc
 , glib
-, libpng
 , ncurses
 , opencv
 , openssl
diff --git a/pkgs/applications/science/math/sage/env-locations.nix b/pkgs/applications/science/math/sage/env-locations.nix
index 2ed079ab32b..288ffd6e0e1 100644
--- a/pkgs/applications/science/math/sage/env-locations.nix
+++ b/pkgs/applications/science/math/sage/env-locations.nix
@@ -1,5 +1,4 @@
-{ stdenv
-, writeTextFile
+{ writeTextFile
 , pari_data
 , pari
 , singular
diff --git a/pkgs/applications/science/math/sage/openblas-pc.nix b/pkgs/applications/science/math/sage/openblas-pc.nix
index ba46850bbc6..f4669a6557e 100644
--- a/pkgs/applications/science/math/sage/openblas-pc.nix
+++ b/pkgs/applications/science/math/sage/openblas-pc.nix
@@ -1,5 +1,4 @@
-{ stdenv
-, openblasCompat
+{ openblasCompat
 , writeTextFile
 , name
 }:
diff --git a/pkgs/applications/science/math/sage/sage-with-env.nix b/pkgs/applications/science/math/sage/sage-with-env.nix
index 3d1ebe87c6b..63b9772b823 100644
--- a/pkgs/applications/science/math/sage/sage-with-env.nix
+++ b/pkgs/applications/science/math/sage/sage-with-env.nix
@@ -3,8 +3,6 @@
 , makeWrapper
 , sage-env
 , sage-src
-, sagelib
-, sagedoc
 , openblasCompat
 , openblas-blas-pc
 , openblas-cblas-pc
@@ -14,7 +12,6 @@
 , singular
 , libgap
 , gap-libgap-compatible
-, gcc
 , giac
 , maxima-ecl
 , pari
diff --git a/pkgs/applications/science/math/sage/sagedoc.nix b/pkgs/applications/science/math/sage/sagedoc.nix
index 7b280e9e028..a594428a389 100644
--- a/pkgs/applications/science/math/sage/sagedoc.nix
+++ b/pkgs/applications/science/math/sage/sagedoc.nix
@@ -1,7 +1,5 @@
-{ pkgs
-, stdenv
+{ stdenv
 , sage-src
-, env-locations
 , sage-with-env
 , sagelib
 , python2
diff --git a/pkgs/applications/science/math/sage/sagelib.nix b/pkgs/applications/science/math/sage/sagelib.nix
index a053d997bf9..abcefba5e26 100644
--- a/pkgs/applications/science/math/sage/sagelib.nix
+++ b/pkgs/applications/science/math/sage/sagelib.nix
@@ -1,5 +1,4 @@
-{ stdenv
-, sage-src
+{ sage-src
 , perl
 , buildPythonPackage
 , arb
diff --git a/pkgs/applications/science/math/scilab/default.nix b/pkgs/applications/science/math/scilab/default.nix
index fcdbb6b985d..6063a45a3ef 100644
--- a/pkgs/applications/science/math/scilab/default.nix
+++ b/pkgs/applications/science/math/scilab/default.nix
@@ -1,6 +1,6 @@
 {stdenv, fetchurl, lib, gfortran
 , ncurses
-, Xaw3d, withXaw3d ? false
+, withXaw3d ? false
 #, withPVMlib ? false
 , tcl, tk, withTk ? false
 , gtk2, withGtk ? false # working ?
diff --git a/pkgs/applications/science/math/singular/default.nix b/pkgs/applications/science/math/singular/default.nix
index cec1a831c91..8be302f41e5 100644
--- a/pkgs/applications/science/math/singular/default.nix
+++ b/pkgs/applications/science/math/singular/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, gmp, bison, perl, autoconf, ncurses, readline, coreutils, pkgconfig
+{ stdenv, fetchurl, gmp, bison, perl, ncurses, readline, coreutils, pkgconfig
 , autoreconfHook
 , file
 , flint
diff --git a/pkgs/applications/science/misc/gephi/default.nix b/pkgs/applications/science/misc/gephi/default.nix
index 3a0bcb66813..b81f188a91b 100644
--- a/pkgs/applications/science/misc/gephi/default.nix
+++ b/pkgs/applications/science/misc/gephi/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, callPackage, jdk, maven, javaPackages }:
+{ stdenv, fetchFromGitHub, jdk, maven, javaPackages }:
 
 let
   version = "0.9.2";
diff --git a/pkgs/applications/science/misc/golly/beta.nix b/pkgs/applications/science/misc/golly/beta.nix
index f423adbe786..dc768725d4f 100644
--- a/pkgs/applications/science/misc/golly/beta.nix
+++ b/pkgs/applications/science/misc/golly/beta.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, fetchgit
+{stdenv, fetchgit
 , wxGTK, perl, python2, zlib, libGLU_combined, libX11
 , automake, autoconf
 }:
diff --git a/pkgs/applications/science/misc/openmvg/default.nix b/pkgs/applications/science/misc/openmvg/default.nix
index 0f0c6aaf74d..c3e1cd60bf0 100644
--- a/pkgs/applications/science/misc/openmvg/default.nix
+++ b/pkgs/applications/science/misc/openmvg/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchgit, pkgconfig, cmake
+{ stdenv, fetchgit, pkgconfig, cmake
 , libjpeg ? null
 , zlib ? null
 , libpng ? null
diff --git a/pkgs/applications/science/misc/openmvs/default.nix b/pkgs/applications/science/misc/openmvs/default.nix
index 4e5b986a428..b665d5f4f68 100644
--- a/pkgs/applications/science/misc/openmvs/default.nix
+++ b/pkgs/applications/science/misc/openmvs/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, cmake
+{ stdenv, fetchFromGitHub, pkgconfig, cmake
 , eigen, opencv, ceres-solver, cgal, boost, vcg
 , gmp, mpfr, glog, google-gflags, libjpeg_turbo }:
 
diff --git a/pkgs/applications/science/misc/root/default.nix b/pkgs/applications/science/misc/root/default.nix
index 00ca1d2c7ab..e966e798ae6 100644
--- a/pkgs/applications/science/misc/root/default.nix
+++ b/pkgs/applications/science/misc/root/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, cmake, pcre, pkgconfig, python2
+{ stdenv, fetchurl, cmake, pcre, pkgconfig, python2
 , libX11, libXpm, libXft, libXext, libGLU_combined, zlib, libxml2, lz4, lzma, gsl, xxHash
 , Cocoa, OpenGL, noSplash ? false }:
 
diff --git a/pkgs/applications/science/robotics/gazebo/default.nix b/pkgs/applications/science/robotics/gazebo/default.nix
index babd87eb2b1..98ccd92c4ee 100644
--- a/pkgs/applications/science/robotics/gazebo/default.nix
+++ b/pkgs/applications/science/robotics/gazebo/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, cmake, pkgconfig, boost, protobuf, freeimage
   , boost-build, boost_process
   , xorg_sys_opengl, tbb, ogre, tinyxml-2
-  , libtar, glxinfo,  libusb, libxslt, ruby, ignition
+  , libtar, glxinfo,  libusb, libxslt, ignition
   , pythonPackages, utillinux
 
   # these deps are hidden; cmake doesn't catch them
diff --git a/pkgs/applications/science/robotics/qgroundcontrol/default.nix b/pkgs/applications/science/robotics/qgroundcontrol/default.nix
index 95462c02eb5..ce3317da9f8 100644
--- a/pkgs/applications/science/robotics/qgroundcontrol/default.nix
+++ b/pkgs/applications/science/robotics/qgroundcontrol/default.nix
@@ -1,8 +1,8 @@
-{ stdenv, fetchgit, git,  espeak, SDL2, udev, doxygen, cmake
+{ stdenv, fetchgit, git,  SDL2, udev, doxygen
 , qtbase, qtlocation, qtserialport, qtdeclarative, qtconnectivity, qtxmlpatterns
 , qtsvg, qtquick1, qtquickcontrols, qtgraphicaleffects, qmake, qtspeech
-, makeWrapper, lndir
-, gst_all_1, qt-gstreamer1, pkgconfig, glibc
+, makeWrapper
+, gst_all_1, pkgconfig
 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/science/robotics/yarp/default.nix b/pkgs/applications/science/robotics/yarp/default.nix
index 98576cfd091..507481cddab 100644
--- a/pkgs/applications/science/robotics/yarp/default.nix
+++ b/pkgs/applications/science/robotics/yarp/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, pkgconfig, cmake, ace
+{ stdenv, fetchFromGitHub, cmake, ace
 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/science/spyder/default.nix b/pkgs/applications/science/spyder/default.nix
index 4411d78cec2..0564f3de1b7 100644
--- a/pkgs/applications/science/spyder/default.nix
+++ b/pkgs/applications/science/spyder/default.nix
@@ -1,7 +1,7 @@
-{ stdenv, fetchPypi, unzip, buildPythonApplication, makeDesktopItem
+{ stdenv, fetchPypi, buildPythonApplication, makeDesktopItem
 # mandatory
 , numpydoc, qtconsole, qtawesome, jedi, pycodestyle, psutil
-, pyflakes, rope, sphinx, nbconvert, mccabe, pyopengl, cloudpickle
+, pyflakes, rope, nbconvert, mccabe, pyopengl, cloudpickle
 # optional
 , numpy ? null, scipy ? null, matplotlib ? null
 # optional
diff --git a/pkgs/applications/version-management/bazaar/tools.nix b/pkgs/applications/version-management/bazaar/tools.nix
index d6c65548c1f..0ad3c6079ac 100644
--- a/pkgs/applications/version-management/bazaar/tools.nix
+++ b/pkgs/applications/version-management/bazaar/tools.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, makeWrapper, python2Packages, bazaar }:
+{ stdenv, fetchurl, python2Packages }:
 
 python2Packages.buildPythonApplication rec {
   name = "bzr-tools-${version}";
diff --git a/pkgs/applications/version-management/bitkeeper/default.nix b/pkgs/applications/version-management/bitkeeper/default.nix
index 06cfc90e65f..26397380d57 100644
--- a/pkgs/applications/version-management/bitkeeper/default.nix
+++ b/pkgs/applications/version-management/bitkeeper/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, perl, gperf, bison, groff
-, pkgconfig, libXft, fontconfig, pcre
-, libtomcrypt, libtommath, lz4, zlib }:
+, pkgconfig, libXft, pcre
+, libtomcrypt, libtommath, lz4 }:
 
 stdenv.mkDerivation rec {
   name = "bitkeeper-${version}";
diff --git a/pkgs/applications/version-management/git-and-tools/fast-export/default.nix b/pkgs/applications/version-management/git-and-tools/fast-export/default.nix
index 474faa30467..88d1f07ee74 100644
--- a/pkgs/applications/version-management/git-and-tools/fast-export/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/fast-export/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchgit, mercurial, coreutils, git, makeWrapper, subversion}:
+{stdenv, fetchgit, mercurial, makeWrapper, subversion}:
 
 with stdenv.lib;
 stdenv.mkDerivation {
diff --git a/pkgs/applications/version-management/git-and-tools/git-annex-remote-b2/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex-remote-b2/default.nix
index 9f1d8e9d717..4d0f33730e4 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex-remote-b2/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex-remote-b2/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchgit, fetchhg, fetchbzr, fetchsvn }:
+{ stdenv, buildGoPackage, fetchgit }:
 
 buildGoPackage rec {
   name = "git-annex-remote-b2-${version}";
diff --git a/pkgs/applications/version-management/git-and-tools/git-cola/default.nix b/pkgs/applications/version-management/git-and-tools/git-cola/default.nix
index 391ca26de25..9bccbdb5049 100644
--- a/pkgs/applications/version-management/git-and-tools/git-cola/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-cola/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, pythonPackages, makeWrapper, gettext, git }:
+{ stdenv, fetchFromGitHub, pythonPackages, gettext, git }:
 
 let
   inherit (pythonPackages) buildPythonApplication pyqt5 sip pyinotify python mock;
diff --git a/pkgs/applications/version-management/git-and-tools/git-dit/default.nix b/pkgs/applications/version-management/git-and-tools/git-dit/default.nix
index 654576a29e8..9c362276383 100644
--- a/pkgs/applications/version-management/git-and-tools/git-dit/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-dit/default.nix
@@ -1,7 +1,6 @@
 { stdenv
 , fetchFromGitHub
 , openssl
-, gcc
 , zlib
 , libssh
 , cmake
diff --git a/pkgs/applications/version-management/git-and-tools/git-fame/default.nix b/pkgs/applications/version-management/git-and-tools/git-fame/default.nix
index 8b77efd1be2..9ca7a67a53e 100644
--- a/pkgs/applications/version-management/git-and-tools/git-fame/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-fame/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, bundlerEnv, ruby, fetchFromGitHub, makeWrapper, bundler }:
+{ stdenv, bundlerEnv, ruby }:
 
 bundlerEnv rec {
   inherit ruby;
diff --git a/pkgs/applications/version-management/git-and-tools/git-hub/default.nix b/pkgs/applications/version-management/git-and-tools/git-hub/default.nix
index 94143e652f9..ba126bb476c 100644
--- a/pkgs/applications/version-management/git-and-tools/git-hub/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-hub/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, docutils, gitMinimal, python2Packages }:
+{ stdenv, fetchFromGitHub, gitMinimal, python2Packages }:
 
 stdenv.mkDerivation rec {
   name = "git-hub-${version}";
diff --git a/pkgs/applications/version-management/git-and-tools/hub/default.nix b/pkgs/applications/version-management/git-and-tools/hub/default.nix
index 645b12220bd..12b7b8965ef 100644
--- a/pkgs/applications/version-management/git-and-tools/hub/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/hub/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildGoPackage, fetchFromGitHub, go, ronn, ruby, groff, Security, utillinux }:
+{ stdenv, buildGoPackage, fetchFromGitHub, ronn, ruby, groff, Security, utillinux }:
 
 buildGoPackage rec {
   name = "hub-${version}";
diff --git a/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix b/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix
index e3ceccdcf3b..17fb74945dc 100644
--- a/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/svn-all-fast-export/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, qmake, qtbase, qttools, subversion, apr }:
+{ stdenv, fetchFromGitHub, qmake, qtbase, qttools, subversion, apr }:
 
 let
   version = "1.0.12";
diff --git a/pkgs/applications/version-management/git-lfs/1.nix b/pkgs/applications/version-management/git-lfs/1.nix
index 24c22d423d5..3cde046a2ad 100644
--- a/pkgs/applications/version-management/git-lfs/1.nix
+++ b/pkgs/applications/version-management/git-lfs/1.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   name = "git-lfs-${version}";
diff --git a/pkgs/applications/version-management/git-review/default.nix b/pkgs/applications/version-management/git-review/default.nix
index 21ceccf9f35..7b81c28c375 100644
--- a/pkgs/applications/version-management/git-review/default.nix
+++ b/pkgs/applications/version-management/git-review/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pythonPackages, python} :
+{ stdenv, fetchurl, pythonPackages} :
 
 pythonPackages.buildPythonApplication rec {
   name = "git-review-${version}";
diff --git a/pkgs/applications/version-management/git-sizer/default.nix b/pkgs/applications/version-management/git-sizer/default.nix
index a0d7382de34..9c5ab20d364 100644
--- a/pkgs/applications/version-management/git-sizer/default.nix
+++ b/pkgs/applications/version-management/git-sizer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ lib, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   pname = "git-sizer";
diff --git a/pkgs/applications/version-management/gitea/default.nix b/pkgs/applications/version-management/gitea/default.nix
index 917deac6daa..5f8619b4a7f 100644
--- a/pkgs/applications/version-management/gitea/default.nix
+++ b/pkgs/applications/version-management/gitea/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildGoPackage, fetchFromGitHub, makeWrapper
-, git, coreutils, bash, gzip, openssh
+, git, bash, gzip, openssh
 , sqliteSupport ? true
 }:
 
diff --git a/pkgs/applications/version-management/gitkraken/default.nix b/pkgs/applications/version-management/gitkraken/default.nix
index db2fdf0199e..3fb9b9492af 100644
--- a/pkgs/applications/version-management/gitkraken/default.nix
+++ b/pkgs/applications/version-management/gitkraken/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, libXcomposite, libgnome-keyring, makeWrapper, udev, curl, alsaLib
+{ stdenv, libXcomposite, libgnome-keyring, makeWrapper, udev, curl, alsaLib
 , libXfixes, atk, gtk2, libXrender, pango, gnome2, cairo, freetype, fontconfig
 , libX11, libXi, libxcb, libXext, libXcursor, glib, libXScrnSaver, libxkbfile, libXtst
 , nss, nspr, cups, fetchurl, expat, gdk_pixbuf, libXdamage, libXrandr, dbus
diff --git a/pkgs/applications/version-management/gitlab/default.nix b/pkgs/applications/version-management/gitlab/default.nix
index 87e4aff28c3..71c62b75868 100644
--- a/pkgs/applications/version-management/gitlab/default.nix
+++ b/pkgs/applications/version-management/gitlab/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, stdenv, lib, bundler, fetchurl, fetchFromGitHub, bundlerEnv, libiconv
+{ stdenv, lib, fetchurl, fetchFromGitHub, bundlerEnv
 , ruby, tzdata, git, procps, nettools
 }:
 
diff --git a/pkgs/applications/version-management/gogs/default.nix b/pkgs/applications/version-management/gogs/default.nix
index 508c8b3fb6d..d3c248b4475 100644
--- a/pkgs/applications/version-management/gogs/default.nix
+++ b/pkgs/applications/version-management/gogs/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildGoPackage, fetchFromGitHub, makeWrapper
-, git, coreutils, bash, gzip, openssh
+, git, bash, gzip, openssh
 , sqliteSupport ? true
 }:
 
diff --git a/pkgs/applications/version-management/guitone/default.nix b/pkgs/applications/version-management/guitone/default.nix
index ded0d5e3986..88074a0862c 100644
--- a/pkgs/applications/version-management/guitone/default.nix
+++ b/pkgs/applications/version-management/guitone/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchmtn, qt4, qmake4Hook, pkgconfig, graphviz }:
+{ stdenv, fetchmtn, qt4, qmake4Hook, pkgconfig, graphviz }:
 
 let version = "1.0-mtn-head"; in
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/version-management/mercurial/default.nix b/pkgs/applications/version-management/mercurial/default.nix
index a00393abf27..d786e939675 100644
--- a/pkgs/applications/version-management/mercurial/default.nix
+++ b/pkgs/applications/version-management/mercurial/default.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchurl, python2Packages, makeWrapper, docutils, unzip
+{ stdenv, fetchurl, python2Packages, makeWrapper, unzip
 , guiSupport ? false, tk ? null
-, ApplicationServices, cf-private }:
+, ApplicationServices }:
 
 let
   # if you bump version, update pkgs.tortoisehg too or ping maintainer
diff --git a/pkgs/applications/version-management/rapidsvn/default.nix b/pkgs/applications/version-management/rapidsvn/default.nix
index 7b3c7aafa44..e799d5fac43 100644
--- a/pkgs/applications/version-management/rapidsvn/default.nix
+++ b/pkgs/applications/version-management/rapidsvn/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, wxGTK, subversion, apr, aprutil, python }:
+{ stdenv, fetchurl, wxGTK, subversion, apr, aprutil, python }:
 
 stdenv.mkDerivation rec {
   name = "rapidsvn-${version}";
diff --git a/pkgs/applications/version-management/redmine/default.nix b/pkgs/applications/version-management/redmine/default.nix
index 1535d88026a..5a23c38a886 100644
--- a/pkgs/applications/version-management/redmine/default.nix
+++ b/pkgs/applications/version-management/redmine/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, ruby, bundler, libiconv, libxslt, libxml2, pkgconfig, libffi, glibc, imagemagickBig, postgresql }:
+{ stdenv, fetchurl, ruby, bundler, libiconv, libxslt, libxml2, pkgconfig, libffi, imagemagickBig, postgresql }:
 
 let
   gemspec = map (gem: fetchurl { url=gem.url; sha256=gem.hash; }) (import ./Gemfile.nix);
diff --git a/pkgs/applications/version-management/reposurgeon/default.nix b/pkgs/applications/version-management/reposurgeon/default.nix
index 84b6633b883..3fd66572315 100644
--- a/pkgs/applications/version-management/reposurgeon/default.nix
+++ b/pkgs/applications/version-management/reposurgeon/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, makeWrapper, python27Packages, git
 , docbook_xml_dtd_412, docbook_xsl, asciidoc, xmlto
 , bazaar ? null, cvs ? null, darcs ? null, fossil ? null
-, mercurial ? null, monotone ? null, rcs ? null, src ? null
+, mercurial ? null, monotone ? null, rcs ? null
 , subversion ? null, cvs_fast_export ? null }:
 
 with stdenv; with lib;
diff --git a/pkgs/applications/version-management/smartgithg/default.nix b/pkgs/applications/version-management/smartgithg/default.nix
index a34afbab55e..519f339a508 100644
--- a/pkgs/applications/version-management/smartgithg/default.nix
+++ b/pkgs/applications/version-management/smartgithg/default.nix
@@ -2,7 +2,6 @@
 , jre
 , gtk2, glib
 , libXtst
-, git, mercurial, subversion
 , which
 }:
 
diff --git a/pkgs/applications/version-management/tailor/default.nix b/pkgs/applications/version-management/tailor/default.nix
index dc202e9e7b4..c68cc928848 100644
--- a/pkgs/applications/version-management/tailor/default.nix
+++ b/pkgs/applications/version-management/tailor/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python2Packages }:
+{ fetchurl, python2Packages }:
 
 python2Packages.buildPythonApplication rec {
   name = "tailor-${version}";
diff --git a/pkgs/applications/version-management/yadm/default.nix b/pkgs/applications/version-management/yadm/default.nix
index 8b2d6fcc8c3..0553b60fde7 100644
--- a/pkgs/applications/version-management/yadm/default.nix
+++ b/pkgs/applications/version-management/yadm/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub }:
+{ stdenv, fetchFromGitHub }:
 
 let version = "1.12.0"; in
 stdenv.mkDerivation {
diff --git a/pkgs/applications/video/avidemux/default.nix b/pkgs/applications/video/avidemux/default.nix
index b36147009a6..0637e813b48 100644
--- a/pkgs/applications/video/avidemux/default.nix
+++ b/pkgs/applications/video/avidemux/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, cmake, pkgconfig, lndir
+{ stdenv, lib, fetchurl, cmake, pkgconfig
 , zlib, gettext, libvdpau, libva, libXv, sqlite
 , yasm, freetype, fontconfig, fribidi
 , makeWrapper, libXext, libGLU, qttools, qtbase
diff --git a/pkgs/applications/video/cinelerra/default.nix b/pkgs/applications/video/cinelerra/default.nix
index 4adbdbdadb2..4235ebb802e 100644
--- a/pkgs/applications/video/cinelerra/default.nix
+++ b/pkgs/applications/video/cinelerra/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, sourceFromHead, autoconf, automake, libtool
+{ stdenv, fetchgit, autoconf, automake, libtool
 , pkgconfig, faad2, faac, a52dec, alsaLib, fftw, lame, libavc1394
 , libiec61883, libraw1394, libsndfile, libvorbis, libogg, libjpeg
 , libtiff, freetype, mjpegtools, x264, gettext, openexr
diff --git a/pkgs/applications/video/devede/default.nix b/pkgs/applications/video/devede/default.nix
index 157e4903e52..48c5032f2da 100644
--- a/pkgs/applications/video/devede/default.nix
+++ b/pkgs/applications/video/devede/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, stdenv, fetchFromGitHub, python3Packages, ffmpeg, mplayer, vcdimager, cdrkit, dvdauthor
+{ stdenv, fetchFromGitHub, python3Packages, ffmpeg, mplayer, vcdimager, cdrkit, dvdauthor
 , gtk3, gettext, wrapGAppsHook, gdk_pixbuf }:
 
 let
diff --git a/pkgs/applications/video/handbrake/default.nix b/pkgs/applications/video/handbrake/default.nix
index 0d0ac0a2e94..32dd3e6ff75 100644
--- a/pkgs/applications/video/handbrake/default.nix
+++ b/pkgs/applications/video/handbrake/default.nix
@@ -4,13 +4,13 @@
 #
 
 { stdenv, lib, fetchurl,
-  python2, pkgconfig, yasm, harfbuzz, zlib,
+  python2, pkgconfig, yasm, zlib,
   autoconf, automake, libtool, m4, jansson,
   libass, libiconv, libsamplerate, fribidi, libxml2, bzip2,
   libogg, libopus, libtheora, libvorbis, libdvdcss, a52dec,
   lame, libdvdread, libdvdnav, libbluray,
   mp4v2, mpeg2dec, x264, x265, libmkv,
-  fontconfig, freetype, hicolor-icon-theme,
+  fontconfig, freetype,
   glib, gtk3, intltool, libnotify,
   gst_all_1, dbus-glib, udev, libgudev, libvpx,
   useGtk ? true, wrapGAppsHook ? null, libappindicator-gtk3 ? null,
diff --git a/pkgs/applications/video/k9copy/default.nix b/pkgs/applications/video/k9copy/default.nix
index 48c7624cfa6..1e8883eae7f 100644
--- a/pkgs/applications/video/k9copy/default.nix
+++ b/pkgs/applications/video/k9copy/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl
-, cmake, automoc4
+, cmake
 , dvdauthor, xineLib, libmpeg2, libav, libdvdread, libdvdnav, dvdplusrwtools
 , phonon, qtx11extras
 , extra-cmake-modules, kio, kiconthemes, ki18n, kdesu, kdoctools, solid
diff --git a/pkgs/applications/video/kodi/commons.nix b/pkgs/applications/video/kodi/commons.nix
index 734229eac93..eff9b787106 100644
--- a/pkgs/applications/video/kodi/commons.nix
+++ b/pkgs/applications/video/kodi/commons.nix
@@ -1,6 +1,5 @@
-{ stdenv, fetchurl, fetchFromGitHub, fetchpatch, lib
-, unzip, cmake, kodiPlain, steam, libcec_platform, tinyxml
-, libusb, pcre-cpp, jsoncpp, libhdhomerun }:
+{ stdenv, fetchFromGitHub
+, cmake, kodiPlain, libcec_platform, tinyxml }:
 
 rec {
 
diff --git a/pkgs/applications/video/kodi/default.nix b/pkgs/applications/video/kodi/default.nix
index 776d2732327..5ca678a2e17 100644
--- a/pkgs/applications/video/kodi/default.nix
+++ b/pkgs/applications/video/kodi/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, fetchurl, autoconf, automake, libtool, makeWrapper
+{ stdenv, lib, fetchFromGitHub, autoconf, automake, libtool, makeWrapper
 , pkgconfig, cmake, gnumake, yasm, python2
 , libgcrypt, libgpgerror, libunistring
 , boost, avahi, lame, autoreconfHook
diff --git a/pkgs/applications/video/kodi/plugins.nix b/pkgs/applications/video/kodi/plugins.nix
index 4d6b1885454..5a0583202e6 100644
--- a/pkgs/applications/video/kodi/plugins.nix
+++ b/pkgs/applications/video/kodi/plugins.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, callPackage, fetchurl, fetchFromGitHub, unzip
+{ stdenv, callPackage, fetchurl, fetchFromGitHub, unzip
 , steam, libusb, pcre-cpp, jsoncpp, libhdhomerun, zlib }:
 
 with (callPackage ./commons.nix {});
diff --git a/pkgs/applications/video/lightworks/default.nix b/pkgs/applications/video/lightworks/default.nix
index e3b94b69179..64a967001b5 100644
--- a/pkgs/applications/video/lightworks/default.nix
+++ b/pkgs/applications/video/lightworks/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, fetchurl, dpkg, makeWrapper, patchelf, buildFHSUserEnv
-, gtk3, gnome3, gdk_pixbuf, cairo, libjpeg_original, glib, gnome2, libGLU
+{ stdenv, fetchurl, dpkg, makeWrapper, buildFHSUserEnv
+, gnome3, gdk_pixbuf, cairo, libjpeg_original, glib, gnome2, libGLU
 , nvidia_cg_toolkit, zlib, openssl, portaudio
 }:
 let
diff --git a/pkgs/applications/video/mapmap/default.nix b/pkgs/applications/video/mapmap/default.nix
index 6569caad6c5..c44bd25b91a 100644
--- a/pkgs/applications/video/mapmap/default.nix
+++ b/pkgs/applications/video/mapmap/default.nix
@@ -1,7 +1,6 @@
 { stdenv 
 , fetchFromGitHub
 , qttools
-, qtbase
 , qtmultimedia
 , liblo
 , gst_all_1
diff --git a/pkgs/applications/video/mplayer/default.nix b/pkgs/applications/video/mplayer/default.nix
index f2d40c2ac80..02a0c2c0ec4 100644
--- a/pkgs/applications/video/mplayer/default.nix
+++ b/pkgs/applications/video/mplayer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, pkgconfig, freetype, yasm, ffmpeg
+{ stdenv, fetchurl, pkgconfig, freetype, yasm, ffmpeg
 , aalibSupport ? true, aalib ? null
 , fontconfigSupport ? true, fontconfig ? null, freefont_ttf ? null
 , fribidiSupport ? true, fribidi ? null
diff --git a/pkgs/applications/video/mpv/default.nix b/pkgs/applications/video/mpv/default.nix
index cefd5b66aed..e3954598cbe 100644
--- a/pkgs/applications/video/mpv/default.nix
+++ b/pkgs/applications/video/mpv/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchFromGitHub, fetchpatch, makeWrapper
+{ stdenv, fetchurl, fetchFromGitHub, makeWrapper
 , docutils, perl, pkgconfig, python3, which, ffmpeg_4
 , freefont_ttf, freetype, libass, libpthreadstubs
 , lua, luasocket, libuchardet, libiconv ? null, darwin
diff --git a/pkgs/applications/video/natron/default.nix b/pkgs/applications/video/natron/default.nix
index 1eb725d10bb..090b4ec9ffe 100644
--- a/pkgs/applications/video/natron/default.nix
+++ b/pkgs/applications/video/natron/default.nix
@@ -1,6 +1,6 @@
 { lib, stdenv, fetchurl, qt4, pkgconfig, boost, expat, cairo, python2Packages,
   cmake, flex, bison, pango, librsvg, librevenge, libxml2, libcdr, libzip,
-  poppler, imagemagick, glew, openexr, ffmpeg, opencolorio, openimageio,
+  poppler, imagemagick, openexr, ffmpeg, opencolorio, openimageio,
   qmake4Hook, libpng, libGL, lndir }:
 
 let
diff --git a/pkgs/applications/video/openshot-qt/libopenshot.nix b/pkgs/applications/video/openshot-qt/libopenshot.nix
index 9e5e278ba89..422b50a8585 100644
--- a/pkgs/applications/video/openshot-qt/libopenshot.nix
+++ b/pkgs/applications/video/openshot-qt/libopenshot.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch
+{ stdenv, fetchFromGitHub
 , pkgconfig, cmake, doxygen
 , libopenshot-audio, imagemagick, ffmpeg
 , swig, python3
diff --git a/pkgs/applications/video/pitivi/default.nix b/pkgs/applications/video/pitivi/default.nix
index 6c92b9aeed6..cea85f553b5 100644
--- a/pkgs/applications/video/pitivi/default.nix
+++ b/pkgs/applications/video/pitivi/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pkgconfig, intltool, itstool, wrapGAppsHook
-, python3Packages, gst, gtk3, hicolor-icon-theme
+, python3Packages, gst, gtk3
 , gobjectIntrospection, librsvg, gnome3, libnotify
 , meson, ninja
 }:
diff --git a/pkgs/applications/video/qstopmotion/default.nix b/pkgs/applications/video/qstopmotion/default.nix
index a689697e0a0..1fce30edbdf 100644
--- a/pkgs/applications/video/qstopmotion/default.nix
+++ b/pkgs/applications/video/qstopmotion/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, qt5, ffmpeg, guvcview, automoc4
+{ stdenv, fetchurl, qt5, ffmpeg, guvcview
 , cmake, ninja, libxml2, gettext, pkgconfig, libgphoto2, gphoto2, v4l_utils
 , libv4l, pcre }:
 
diff --git a/pkgs/applications/video/recordmydesktop/gtk.nix b/pkgs/applications/video/recordmydesktop/gtk.nix
index 2beb3ca94f2..984b623cee7 100644
--- a/pkgs/applications/video/recordmydesktop/gtk.nix
+++ b/pkgs/applications/video/recordmydesktop/gtk.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchsvn, recordmydesktop, autoreconfHook, pkgconfig, glib
+{ stdenv, lib, fetchsvn, recordmydesktop, autoreconfHook, pkgconfig
 , pythonPackages, jack2, xwininfo }:
 
 let
diff --git a/pkgs/applications/video/zdfmediathk/default.nix b/pkgs/applications/video/zdfmediathk/default.nix
index d85e4df7434..a875daf065e 100644
--- a/pkgs/applications/video/zdfmediathk/default.nix
+++ b/pkgs/applications/video/zdfmediathk/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, unzip, jre }:
+{ stdenv, fetchurl, jre }:
 
 with stdenv;
 
diff --git a/pkgs/applications/virtualization/containerd/default.nix b/pkgs/applications/virtualization/containerd/default.nix
index 46d03ad3d62..6c739b32c5f 100644
--- a/pkgs/applications/virtualization/containerd/default.nix
+++ b/pkgs/applications/virtualization/containerd/default.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, fetchFromGitHub, removeReferencesTo
-, go, libapparmor, apparmor-parser, libseccomp, btrfs-progs }:
+, go, btrfs-progs }:
 
 with lib;
 
diff --git a/pkgs/applications/virtualization/docker/default.nix b/pkgs/applications/virtualization/docker/default.nix
index 6e40f9ba076..d52b5365b5e 100644
--- a/pkgs/applications/virtualization/docker/default.nix
+++ b/pkgs/applications/virtualization/docker/default.nix
@@ -1,6 +1,6 @@
 { stdenv, lib, fetchFromGitHub, makeWrapper, removeReferencesTo, pkgconfig
 , go-md2man, go, containerd, runc, docker-proxy, tini, libtool
-, sqlite, iproute, bridge-utils, lvm2, systemd
+, sqlite, iproute, lvm2, systemd
 , btrfs-progs, iptables, e2fsprogs, xz, utillinux, xfsprogs
 , procps, libseccomp
 }:
diff --git a/pkgs/applications/virtualization/runc/default.nix b/pkgs/applications/virtualization/runc/default.nix
index b0fd42f4efb..7172b172ef2 100644
--- a/pkgs/applications/virtualization/runc/default.nix
+++ b/pkgs/applications/virtualization/runc/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, fetchpatch, removeReferencesTo, go-md2man
+{ stdenv, lib, fetchFromGitHub, removeReferencesTo, go-md2man
 , go, pkgconfig, libapparmor, apparmor-parser, libseccomp }:
 
 with lib;
diff --git a/pkgs/applications/virtualization/virtinst/default.nix b/pkgs/applications/virtualization/virtinst/default.nix
index f0ee4b5b26e..8222fb50a8f 100644
--- a/pkgs/applications/virtualization/virtinst/default.nix
+++ b/pkgs/applications/virtualization/virtinst/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, python2Packages, intltool, libxml2Python, curl }:
+{ stdenv, fetchurl, python2Packages, intltool, libxml2Python }:
 
 with stdenv.lib;
 
diff --git a/pkgs/applications/virtualization/virtualbox/default.nix b/pkgs/applications/virtualization/virtualbox/default.nix
index e7ab3aa251c..f9770435aaf 100644
--- a/pkgs/applications/virtualization/virtualbox/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, lib, fetchpatch, iasl, dev86, pam, libxslt, libxml2
 , libX11, xproto, libXext, libXcursor, libXmu, qt5, libIDL, SDL, libcap
-, zlib, libpng, glib, lvm2, libXrandr, libXinerama
+, libpng, glib, lvm2, libXrandr, libXinerama
 , pkgconfig, which, docbook_xsl, docbook_xml_dtd_43
-, alsaLib, curl, libvpx, gawk, nettools, dbus
+, alsaLib, curl, libvpx, nettools, dbus
 , xorriso, makeself, perl
 , javaBindings ? false, jdk ? null
 , pythonBindings ? false, python2 ? null
-, enableExtensionPack ? false, requireFile ? null, patchelf ? null, fakeroot ? null
+, enableExtensionPack ? false, requireFile ? null, fakeroot ? null
 , pulseSupport ? false, libpulseaudio ? null
 , enableHardening ? false
 , headless ? false
diff --git a/pkgs/applications/virtualization/vpcs/default.nix b/pkgs/applications/virtualization/vpcs/default.nix
index af344eb82cf..65435e19366 100644
--- a/pkgs/applications/virtualization/vpcs/default.nix
+++ b/pkgs/applications/virtualization/vpcs/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, cmake, glibc, buildPlatform }:
+{ stdenv, fetchurl, glibc, buildPlatform }:
 
 stdenv.mkDerivation rec {
   name = "${pname}-${version}";
diff --git a/pkgs/applications/window-managers/bspwm/default.nix b/pkgs/applications/window-managers/bspwm/default.nix
index 0538228d4b4..dc57ad13d41 100644
--- a/pkgs/applications/window-managers/bspwm/default.nix
+++ b/pkgs/applications/window-managers/bspwm/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, libxcb, libXinerama
-, sxhkd, xcbutil, xcbutilkeysyms, xcbutilwm
+, xcbutil, xcbutilkeysyms, xcbutilwm
 }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/window-managers/bspwm/unstable.nix b/pkgs/applications/window-managers/bspwm/unstable.nix
index 7b31c63128a..09c7c8e0e08 100644
--- a/pkgs/applications/window-managers/bspwm/unstable.nix
+++ b/pkgs/applications/window-managers/bspwm/unstable.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, libxcb, libXinerama, sxhkd, xcbutil, xcbutilkeysyms, xcbutilwm }:
+{ stdenv, fetchFromGitHub, libxcb, libXinerama, xcbutil, xcbutilkeysyms, xcbutilwm }:
 
 stdenv.mkDerivation rec {
   name = "bspwm-unstable-2016-09-30";
diff --git a/pkgs/applications/window-managers/clfswm/default.nix b/pkgs/applications/window-managers/clfswm/default.nix
index 97e399a133e..cc00f1e4b6e 100644
--- a/pkgs/applications/window-managers/clfswm/default.nix
+++ b/pkgs/applications/window-managers/clfswm/default.nix
@@ -1,6 +1,5 @@
-{ stdenv, pkgs, fetchgit, autoconf, sbcl, lispPackages, xdpyinfo, texinfo4
-, makeWrapper , rlwrap, gnused, gnugrep, coreutils, xprop
-, extraModulePaths ? [] }:
+{ stdenv, fetchgit, autoconf, sbcl, lispPackages, xdpyinfo, texinfo4
+, makeWrapper }:
 
 stdenv.mkDerivation rec {
   name = "clfswm";
diff --git a/pkgs/applications/window-managers/i3/default.nix b/pkgs/applications/window-managers/i3/default.nix
index 986639c947b..74c3c71dbf7 100644
--- a/pkgs/applications/window-managers/i3/default.nix
+++ b/pkgs/applications/window-managers/i3/default.nix
@@ -1,6 +1,6 @@
 { fetchurl, stdenv, which, pkgconfig, makeWrapper, libxcb, xcbutilkeysyms
 , xcbutil, xcbutilwm, xcbutilxrm, libstartup_notification, libX11, pcre, libev
-, yajl, xcb-util-cursor, coreutils, perl, pango, perlPackages, libxkbcommon
+, yajl, xcb-util-cursor, perl, pango, perlPackages, libxkbcommon
 , xorgserver, xvfb_run }:
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/applications/window-managers/notion/default.nix b/pkgs/applications/window-managers/notion/default.nix
index ebe58e921dd..eaeb9979c10 100644
--- a/pkgs/applications/window-managers/notion/default.nix
+++ b/pkgs/applications/window-managers/notion/default.nix
@@ -1,6 +1,6 @@
 {
   enableXft ? true, libXft ? null, patches ? [], stdenv, lua, gettext, pkgconfig, xlibsWrapper, libXinerama, libXrandr, libX11,
-  xterm, xmessage, makeWrapper, lib, fetchFromGitHub, mandoc, which
+  xterm, xmessage, makeWrapper, fetchFromGitHub, mandoc, which
 }:
 
 assert enableXft -> libXft != null;
diff --git a/pkgs/applications/window-managers/spectrwm/default.nix b/pkgs/applications/window-managers/spectrwm/default.nix
index 1a3c976f77d..81901be0e60 100644
--- a/pkgs/applications/window-managers/spectrwm/default.nix
+++ b/pkgs/applications/window-managers/spectrwm/default.nix
@@ -1,5 +1,4 @@
 { fetchurl
-, coreutils
 , libX11
 , libXrandr
 , libXcursor
diff --git a/pkgs/applications/window-managers/stumpwm/default.nix b/pkgs/applications/window-managers/stumpwm/default.nix
index 117d4fe1d6a..3ed7f4325f2 100644
--- a/pkgs/applications/window-managers/stumpwm/default.nix
+++ b/pkgs/applications/window-managers/stumpwm/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, fetchgit, autoconf, sbcl, lispPackages, xdpyinfo, texinfo4
+{ stdenv, fetchgit, autoconf, sbcl, lispPackages, xdpyinfo, texinfo4
 , makeWrapper , rlwrap, gnused, gnugrep, coreutils, xprop
 , extraModulePaths ? []
 , version }:
diff --git a/pkgs/applications/window-managers/taffybar/default.nix b/pkgs/applications/window-managers/taffybar/default.nix
index b1e0628ba92..dfb2eec5dc5 100644
--- a/pkgs/applications/window-managers/taffybar/default.nix
+++ b/pkgs/applications/window-managers/taffybar/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, ghcWithPackages, xmessage, makeWrapper, packages ? (x: []) }:
+{ stdenv, ghcWithPackages, makeWrapper, packages ? (x: []) }:
 
 let
 taffybarEnv = ghcWithPackages (self: [ self.taffybar ] ++ packages self);
diff --git a/pkgs/applications/window-managers/wtftw/default.nix b/pkgs/applications/window-managers/wtftw/default.nix
index c68562d82b3..8a680e1f763 100644
--- a/pkgs/applications/window-managers/wtftw/default.nix
+++ b/pkgs/applications/window-managers/wtftw/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, rustPlatform, cargo, libXinerama, libX11, pkgconfig }:
+{ stdenv, fetchFromGitHub, rustPlatform, libXinerama, libX11, pkgconfig }:
 
 rustPlatform.buildRustPackage rec {
   name = "wtftw-0.0pre20170921";
author	volth <volth@volth.com>	2018-07-21 00:44:44 +0000
committer	volth <volth@volth.com>	2018-07-21 02:48:04 +0000
commit	52f53c69ce6dbc5538f7e4cd22f9d93baf1f64a2 (patch)
tree	2519a24bfee83cad4268e77ac180c84cb4036ed7 /pkgs/applications
parent	1a6af9f88ec2405334a9fd6a977ccbcb53472305 (diff)
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