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-rw-r--r--pkgs/applications/science/astronomy/celestia/default.nix4
-rw-r--r--pkgs/applications/science/astronomy/gildas/default.nix4
-rw-r--r--pkgs/applications/science/astronomy/gpredict/default.nix4
-rw-r--r--pkgs/applications/science/astronomy/xplanet/default.nix4
-rw-r--r--pkgs/applications/science/biology/EZminc/default.nix4
-rw-r--r--pkgs/applications/science/biology/exonerate/default.nix4
-rw-r--r--pkgs/applications/science/biology/neuron/default.nix4
-rw-r--r--pkgs/applications/science/biology/sortmerna/default.nix4
-rwxr-xr-xpkgs/applications/science/biology/vcftools/default.nix4
-rw-r--r--pkgs/applications/science/chemistry/avogadro/default.nix4
-rw-r--r--pkgs/applications/science/electronics/dsview/default.nix4
-rw-r--r--pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix4
-rw-r--r--pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix4
-rw-r--r--pkgs/applications/science/electronics/fped/default.nix4
-rw-r--r--pkgs/applications/science/electronics/fritzing/default.nix4
-rw-r--r--pkgs/applications/science/electronics/geda/default.nix4
-rw-r--r--pkgs/applications/science/electronics/gerbv/default.nix4
-rw-r--r--pkgs/applications/science/electronics/gtkwave/default.nix4
-rw-r--r--pkgs/applications/science/electronics/hal-hardware-analyzer/default.nix4
-rw-r--r--pkgs/applications/science/electronics/horizon-eda/default.nix4
-rw-r--r--pkgs/applications/science/electronics/hyp2mat/default.nix4
-rw-r--r--pkgs/applications/science/electronics/kicad/base.nix4
-rw-r--r--pkgs/applications/science/electronics/pcb/default.nix4
-rw-r--r--pkgs/applications/science/electronics/pulseview/default.nix4
-rw-r--r--pkgs/applications/science/electronics/xcircuit/default.nix4
-rw-r--r--pkgs/applications/science/electronics/xoscope/default.nix4
-rw-r--r--pkgs/applications/science/geometry/drgeo/default.nix4
-rw-r--r--pkgs/applications/science/logic/coq/default.nix4
-rw-r--r--pkgs/applications/science/logic/cvc4/default.nix4
-rw-r--r--pkgs/applications/science/logic/elan/default.nix4
-rw-r--r--pkgs/applications/science/logic/ott/default.nix4
-rw-r--r--pkgs/applications/science/logic/prooftree/default.nix4
-rw-r--r--pkgs/applications/science/logic/twelf/default.nix4
-rw-r--r--pkgs/applications/science/math/R/default.nix4
-rw-r--r--pkgs/applications/science/math/cemu/default.nix4
-rw-r--r--pkgs/applications/science/math/ginac/default.nix4
-rw-r--r--pkgs/applications/science/math/nasc/default.nix4
-rw-r--r--pkgs/applications/science/math/pspp/default.nix4
-rw-r--r--pkgs/applications/science/math/pynac/default.nix4
-rw-r--r--pkgs/applications/science/math/qalculate-gtk/default.nix4
-rw-r--r--pkgs/applications/science/math/rofi-calc/default.nix4
-rw-r--r--pkgs/applications/science/math/sage/default.nix6
-rw-r--r--pkgs/applications/science/math/singular/default.nix4
-rw-r--r--pkgs/applications/science/misc/boinc/default.nix4
-rw-r--r--pkgs/applications/science/misc/openmodelica/default.nix4
-rw-r--r--pkgs/applications/science/misc/openmvg/default.nix4
-rw-r--r--pkgs/applications/science/misc/openmvs/default.nix4
-rw-r--r--pkgs/applications/science/misc/root/default.nix4
-rw-r--r--pkgs/applications/science/robotics/qgroundcontrol/default.nix4
49 files changed, 99 insertions, 99 deletions
diff --git a/pkgs/applications/science/astronomy/celestia/default.nix b/pkgs/applications/science/astronomy/celestia/default.nix
index cbdd29b418d..24eace7eb99 100644
--- a/pkgs/applications/science/astronomy/celestia/default.nix
+++ b/pkgs/applications/science/astronomy/celestia/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchurl, freeglut, gtk2, gtkglext, libjpeg_turbo, libtheora, libXmu
-, lua, libGLU, libGL, pkgconfig, perl, autoreconfHook
+, lua, libGLU, libGL, pkg-config, perl, autoreconfHook
 }:
 
 let
@@ -43,7 +43,7 @@ stdenv.mkDerivation {
     sha256 = "1i1lvhbgllsh2z8i6jj4mvrjak4a7r69psvk7syw03s4p7670mfk";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ freeglut gtk2 gtkglext libjpeg_turbo libtheora libXmu libGLU libGL lua
     perl autoreconfHook ];
 
diff --git a/pkgs/applications/science/astronomy/gildas/default.nix b/pkgs/applications/science/astronomy/gildas/default.nix
index 2174d38d8b4..b716b0f2f90 100644
--- a/pkgs/applications/science/astronomy/gildas/default.nix
+++ b/pkgs/applications/science/astronomy/gildas/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, gtk2-x11 , pkgconfig , python3 , gfortran , lesstif
+{ lib, stdenv, fetchurl, gtk2-x11 , pkg-config , python3 , gfortran , lesstif
 , cfitsio , getopt , perl , groff , which, darwin, ncurses
 }:
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     sha256 = "9faa0b3e674b5ffe5b1aee88027d7401a46ae28cd0b306595300547605d6222a";
   };
 
-  nativeBuildInputs = [ pkgconfig groff perl getopt gfortran which ];
+  nativeBuildInputs = [ pkg-config groff perl getopt gfortran which ];
 
   buildInputs = [ gtk2-x11 lesstif cfitsio python3Env ncurses ]
     ++ lib.optionals stdenv.isDarwin (with darwin.apple_sdk.frameworks; [ CoreFoundation ]);
diff --git a/pkgs/applications/science/astronomy/gpredict/default.nix b/pkgs/applications/science/astronomy/gpredict/default.nix
index a089bf6534b..4cda15e516d 100644
--- a/pkgs/applications/science/astronomy/gpredict/default.nix
+++ b/pkgs/applications/science/astronomy/gpredict/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, pkgconfig, intltool
+{ lib, stdenv, fetchurl, pkg-config, intltool
 , gtk3, glib, curl, goocanvas2, gpsd
 , hamlib, wrapGAppsHook
 }:
@@ -14,7 +14,7 @@ in stdenv.mkDerivation {
     sha256 = "0hwf97kng1zy8rxyglw04x89p0bg07zq30hgghm20yxiw2xc8ng7";
   };
 
-  nativeBuildInputs = [ pkgconfig intltool wrapGAppsHook ];
+  nativeBuildInputs = [ pkg-config intltool wrapGAppsHook ];
   buildInputs = [ curl glib gtk3 goocanvas2 gpsd hamlib ];
 
   meta = with lib; {
diff --git a/pkgs/applications/science/astronomy/xplanet/default.nix b/pkgs/applications/science/astronomy/xplanet/default.nix
index 305eb158d13..82331a9496d 100644
--- a/pkgs/applications/science/astronomy/xplanet/default.nix
+++ b/pkgs/applications/science/astronomy/xplanet/default.nix
@@ -1,4 +1,4 @@
-{lib, stdenv, fetchurl, fetchpatch, pkgconfig, freetype, pango, libpng, libtiff
+{lib, stdenv, fetchurl, fetchpatch, pkg-config, freetype, pango, libpng, libtiff
 , giflib, libjpeg, netpbm}:
 
 stdenv.mkDerivation rec {
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
     sha256 = "1rzc1alph03j67lrr66499zl0wqndiipmj99nqgvh9xzm1qdb023";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ freetype pango libpng libtiff giflib libjpeg netpbm ];
 
   patches = [
diff --git a/pkgs/applications/science/biology/EZminc/default.nix b/pkgs/applications/science/biology/EZminc/default.nix
index 17d8944128e..a2ba038c059 100644
--- a/pkgs/applications/science/biology/EZminc/default.nix
+++ b/pkgs/applications/science/biology/EZminc/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, cmake, pkgconfig, libminc, bicpl, itk4, fftwFloat, gsl }:
+{ lib, stdenv, fetchFromGitHub, cmake, pkg-config, libminc, bicpl, itk4, fftwFloat, gsl }:
 
 stdenv.mkDerivation rec {
   pname = "EZminc";
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
     sha256 = "0wy8cppf5xpgfqvgb3mqs1cjh81n6qzkk6zxv29wvng8nar9wsy4";
   };
 
-  nativeBuildInputs = [ cmake pkgconfig ];
+  nativeBuildInputs = [ cmake pkg-config ];
   buildInputs = [ itk4 libminc bicpl fftwFloat gsl ];
 
   cmakeFlags = [ "-DLIBMINC_DIR=${libminc}/lib/cmake"
diff --git a/pkgs/applications/science/biology/exonerate/default.nix b/pkgs/applications/science/biology/exonerate/default.nix
index 9f87d0117df..f7b6bf6c14c 100644
--- a/pkgs/applications/science/biology/exonerate/default.nix
+++ b/pkgs/applications/science/biology/exonerate/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, glib, pkgconfig }:
+{ lib, stdenv, fetchurl, glib, pkg-config }:
 
 stdenv.mkDerivation rec {
   version = "2.4.0";
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ glib ];
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
 
   meta = with lib; {
     description = "Generic tool for sequence alignment";
diff --git a/pkgs/applications/science/biology/neuron/default.nix b/pkgs/applications/science/biology/neuron/default.nix
index 3dbc39684c2..154965b1521 100644
--- a/pkgs/applications/science/biology/neuron/default.nix
+++ b/pkgs/applications/science/biology/neuron/default.nix
@@ -1,6 +1,6 @@
 { lib, stdenv
 , fetchurl
-, pkgconfig
+, pkg-config
 , automake
 , autoconf
 , libtool
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   pname = "neuron";
   version = "7.5";
 
-  nativeBuildInputs = [ which pkgconfig automake autoconf libtool ];
+  nativeBuildInputs = [ which pkg-config automake autoconf libtool ];
   buildInputs = [ ncurses readline python mpi iv ];
 
   src = fetchurl {
diff --git a/pkgs/applications/science/biology/sortmerna/default.nix b/pkgs/applications/science/biology/sortmerna/default.nix
index 01c65f4bcff..2efa39ac489 100644
--- a/pkgs/applications/science/biology/sortmerna/default.nix
+++ b/pkgs/applications/science/biology/sortmerna/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, cmake, rocksdb, rapidjson, pkgconfig, fetchFromGitHub, fetchpatch, zlib }:
+{ lib, stdenv, cmake, rocksdb, rapidjson, pkg-config, fetchFromGitHub, fetchpatch, zlib }:
 
 stdenv.mkDerivation rec {
   pname = "sortmerna";
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
     sha256 = "0r91viylzr069jm7kpcgb45kagvf8sqcj5zc1af4arl9sgfs1f3j";
   };
 
-  nativeBuildInputs = [ cmake pkgconfig ];
+  nativeBuildInputs = [ cmake pkg-config ];
   buildInputs = [ zlib rocksdb rapidjson ];
 
   cmakeFlags = [
diff --git a/pkgs/applications/science/biology/vcftools/default.nix b/pkgs/applications/science/biology/vcftools/default.nix
index 61b2ea143b8..9f88079627e 100755
--- a/pkgs/applications/science/biology/vcftools/default.nix
+++ b/pkgs/applications/science/biology/vcftools/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, zlib, autoreconfHook, pkgconfig, perl }:
+{ lib, stdenv, fetchFromGitHub, zlib, autoreconfHook, pkg-config, perl }:
 
 stdenv.mkDerivation rec {
   pname = "vcftools";
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
     sha256 = "0msb09d2cnm8rlpg8bsc1lhjddvp3kf3i9dsj1qs4qgsdlzhxkyx";
   };
 
-  buildInputs = [ autoreconfHook pkgconfig zlib perl ];
+  buildInputs = [ autoreconfHook pkg-config zlib perl ];
 
   meta = with lib; {
     description = "A set of tools written in Perl and C++ for working with VCF files, such as those generated by the 1000 Genomes Project";
diff --git a/pkgs/applications/science/chemistry/avogadro/default.nix b/pkgs/applications/science/chemistry/avogadro/default.nix
index a1e775135e0..f5c6d79e28a 100644
--- a/pkgs/applications/science/chemistry/avogadro/default.nix
+++ b/pkgs/applications/science/chemistry/avogadro/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, cmake, qt4, zlib, eigen, openbabel, pkgconfig, libGLU, libGL, libX11, doxygen }:
+{ lib, stdenv, fetchurl, cmake, qt4, zlib, eigen, openbabel, pkg-config, libGLU, libGL, libX11, doxygen }:
 
 stdenv.mkDerivation rec {
   name = "avogadro-1.1.1";
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ qt4 eigen zlib openbabel libGL libGLU libX11 ];
 
-  nativeBuildInputs = [ cmake pkgconfig doxygen ];
+  nativeBuildInputs = [ cmake pkg-config doxygen ];
 
   NIX_CFLAGS_COMPILE = "-include ${libGLU.dev}/include/GL/glu.h";
 
diff --git a/pkgs/applications/science/electronics/dsview/default.nix b/pkgs/applications/science/electronics/dsview/default.nix
index 8c5e9e41aac..ab16866fe01 100644
--- a/pkgs/applications/science/electronics/dsview/default.nix
+++ b/pkgs/applications/science/electronics/dsview/default.nix
@@ -1,4 +1,4 @@
-{ lib, mkDerivation, fetchFromGitHub, pkgconfig, cmake
+{ lib, mkDerivation, fetchFromGitHub, pkg-config, cmake
 , libzip, boost, fftw, qtbase, libusb1, libsigrok4dsl
 , libsigrokdecode4dsl, python3, fetchpatch
 }:
@@ -27,7 +27,7 @@ mkDerivation rec {
     ./qt515.patch
   ];
 
-  nativeBuildInputs = [ cmake pkgconfig ];
+  nativeBuildInputs = [ cmake pkg-config ];
 
   buildInputs = [
     boost fftw qtbase libusb1 libzip libsigrokdecode4dsl libsigrok4dsl
diff --git a/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix b/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix
index a2fcb9a929d..8e04d72780c 100644
--- a/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix
+++ b/pkgs/applications/science/electronics/dsview/libsigrok4dsl.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, pkgconfig, autoreconfHook,
+{ lib, stdenv, pkg-config, autoreconfHook,
 glib, libzip, libserialport, check, libusb1, libftdi,
 systemd, alsaLib, dsview
 }:
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
     export sourceRoot=$sourceRoot/libsigrok4DSL
   '';
 
-  nativeBuildInputs = [ pkgconfig autoreconfHook ];
+  nativeBuildInputs = [ pkg-config autoreconfHook ];
 
   buildInputs = [
     glib libzip libserialport libusb1 libftdi systemd check alsaLib
diff --git a/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix b/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix
index 2bab4b681d3..09eed4a67c5 100644
--- a/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix
+++ b/pkgs/applications/science/electronics/dsview/libsigrokdecode4dsl.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, pkgconfig, autoreconfHook,
+{ lib, stdenv, pkg-config, autoreconfHook,
 glib, check, python3, dsview
 }:
 
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
     export sourceRoot=$sourceRoot/libsigrokdecode4DSL
   '';
 
-  nativeBuildInputs = [ pkgconfig autoreconfHook ];
+  nativeBuildInputs = [ pkg-config autoreconfHook ];
 
   buildInputs = [
     python3 glib check
diff --git a/pkgs/applications/science/electronics/fped/default.nix b/pkgs/applications/science/electronics/fped/default.nix
index 9ef47ae2634..f1c458f40d9 100644
--- a/pkgs/applications/science/electronics/fped/default.nix
+++ b/pkgs/applications/science/electronics/fped/default.nix
@@ -1,6 +1,6 @@
 { lib, stdenv, fetchgit
 , flex, bison, fig2dev, imagemagick, netpbm, gtk2
-, pkgconfig
+, pkg-config
 }:
 
 with lib;
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   nativeBuildInputs = [
     flex
     bison
-    pkgconfig
+    pkg-config
     imagemagick
     fig2dev
     netpbm
diff --git a/pkgs/applications/science/electronics/fritzing/default.nix b/pkgs/applications/science/electronics/fritzing/default.nix
index 91d6f5e77ab..b25f76800e8 100644
--- a/pkgs/applications/science/electronics/fritzing/default.nix
+++ b/pkgs/applications/science/electronics/fritzing/default.nix
@@ -1,4 +1,4 @@
-{ mkDerivation, lib, stdenv, fetchpatch, fetchFromGitHub, qmake, pkgconfig
+{ mkDerivation, lib, stdenv, fetchpatch, fetchFromGitHub, qmake, pkg-config
 , qtbase, qtsvg, qttools, qtserialport, boost, libgit2
 }:
 
@@ -32,7 +32,7 @@ mkDerivation rec {
 
   buildInputs = [ qtbase qtsvg qtserialport boost libgit2 ];
 
-  nativeBuildInputs = [ qmake pkgconfig qttools ];
+  nativeBuildInputs = [ qmake pkg-config qttools ];
 
   patches = [(fetchpatch {
     name = "fix-libgit2-version.patch";
diff --git a/pkgs/applications/science/electronics/geda/default.nix b/pkgs/applications/science/electronics/geda/default.nix
index c9a3dcf1aa0..053211f52ad 100644
--- a/pkgs/applications/science/electronics/geda/default.nix
+++ b/pkgs/applications/science/electronics/geda/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, pkgconfig, guile, gtk2, flex, gawk, perl }:
+{ lib, stdenv, fetchurl, pkg-config, guile, gtk2, flex, gawk, perl }:
 
 stdenv.mkDerivation {
   pname = "geda";
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
   configureFlags = [
     "--disable-update-xdg-database" 
   ];
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ guile gtk2 flex gawk perl ];
 
   meta = with lib; {
diff --git a/pkgs/applications/science/electronics/gerbv/default.nix b/pkgs/applications/science/electronics/gerbv/default.nix
index a44a892eabe..94a8f081f69 100644
--- a/pkgs/applications/science/electronics/gerbv/default.nix
+++ b/pkgs/applications/science/electronics/gerbv/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchgit, pkgconfig, gettext, libtool, automake, autoconf, cairo, gtk2, autoreconfHook }:
+{ lib, stdenv, fetchgit, pkg-config, gettext, libtool, automake, autoconf, cairo, gtk2, autoreconfHook }:
 
 stdenv.mkDerivation {
   pname = "gerbv";
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
     sha256 = "00jn1xhf6kblxc5gac1wvk8zm12fy6sk81nj3jwdag0z6wk3z446";
   };
 
-  nativeBuildInputs = [ autoreconfHook pkgconfig ];
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
   buildInputs = [ gettext libtool automake autoconf cairo gtk2 ];
 
   configureFlags = ["--disable-update-desktop-database"];
diff --git a/pkgs/applications/science/electronics/gtkwave/default.nix b/pkgs/applications/science/electronics/gtkwave/default.nix
index aeca4326756..971891a5b01 100644
--- a/pkgs/applications/science/electronics/gtkwave/default.nix
+++ b/pkgs/applications/science/electronics/gtkwave/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, glib, gtk3, gperf, pkgconfig, bzip2, tcl, tk, wrapGAppsHook, judy, xz }:
+{ lib, stdenv, fetchurl, glib, gtk3, gperf, pkg-config, bzip2, tcl, tk, wrapGAppsHook, judy, xz }:
 
 stdenv.mkDerivation rec {
   pname = "gtkwave";
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
     sha256 = "0ma30jyc94iid3v3m8aw4i2lyiqfxkpsdvdmmaibynk400cbzivl";
   };
 
-  nativeBuildInputs = [ pkgconfig wrapGAppsHook ];
+  nativeBuildInputs = [ pkg-config wrapGAppsHook ];
   buildInputs = [ glib gtk3 gperf bzip2 tcl tk judy xz ];
 
   configureFlags = [
diff --git a/pkgs/applications/science/electronics/hal-hardware-analyzer/default.nix b/pkgs/applications/science/electronics/hal-hardware-analyzer/default.nix
index c16f6bf122b..2c5ee674a23 100644
--- a/pkgs/applications/science/electronics/hal-hardware-analyzer/default.nix
+++ b/pkgs/applications/science/electronics/hal-hardware-analyzer/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, cmake, ninja, pkgconfig, python3Packages
+{ lib, stdenv, fetchFromGitHub, cmake, ninja, pkg-config, python3Packages
 , boost, rapidjson, qtbase, qtsvg, igraph, spdlog, wrapQtAppsHook
 , fmt, graphviz, llvmPackages ? null
 }:
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     shopt -u extglob
   '';
 
-  nativeBuildInputs = [ cmake ninja pkgconfig ];
+  nativeBuildInputs = [ cmake ninja pkg-config ];
   buildInputs = [ qtbase qtsvg boost rapidjson igraph spdlog fmt graphviz wrapQtAppsHook ]
     ++ (with python3Packages; [ python pybind11 ])
     ++ lib.optional stdenv.cc.isClang llvmPackages.openmp;
diff --git a/pkgs/applications/science/electronics/horizon-eda/default.nix b/pkgs/applications/science/electronics/horizon-eda/default.nix
index 6b9f07ee68f..8e4241b3ea9 100644
--- a/pkgs/applications/science/electronics/horizon-eda/default.nix
+++ b/pkgs/applications/science/electronics/horizon-eda/default.nix
@@ -13,7 +13,7 @@
 , libuuid
 , libzip
 , opencascade
-, pkgconfig
+, pkg-config
 , podofo
 , python3
 , sqlite
@@ -51,7 +51,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [
     boost.dev
-    pkgconfig
+    pkg-config
     wrapGAppsHook
   ];
 
diff --git a/pkgs/applications/science/electronics/hyp2mat/default.nix b/pkgs/applications/science/electronics/hyp2mat/default.nix
index 01d587fc172..799af4c4308 100644
--- a/pkgs/applications/science/electronics/hyp2mat/default.nix
+++ b/pkgs/applications/science/electronics/hyp2mat/default.nix
@@ -7,7 +7,7 @@
 , groff
 , libharu
 , autoreconfHook
-, pkgconfig
+, pkg-config
 , libpng
 , zlib
 }:
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [
     autoreconfHook
-    pkgconfig
+    pkg-config
   ];
 
   buildInputs = [
diff --git a/pkgs/applications/science/electronics/kicad/base.nix b/pkgs/applications/science/electronics/kicad/base.nix
index c2da57d1833..3ed6234b4f8 100644
--- a/pkgs/applications/science/electronics/kicad/base.nix
+++ b/pkgs/applications/science/electronics/kicad/base.nix
@@ -13,7 +13,7 @@
 , curl
 , openssl
 , boost
-, pkgconfig
+, pkg-config
 , doxygen
 , pcre
 , libpthreadstubs
@@ -94,7 +94,7 @@ stdenv.mkDerivation rec {
     ]
   ;
 
-  nativeBuildInputs = [ cmake doxygen pkgconfig lndir ];
+  nativeBuildInputs = [ cmake doxygen pkg-config lndir ];
 
   buildInputs = [
     libGLU
diff --git a/pkgs/applications/science/electronics/pcb/default.nix b/pkgs/applications/science/electronics/pcb/default.nix
index 47de2173947..69ff7b2e69f 100644
--- a/pkgs/applications/science/electronics/pcb/default.nix
+++ b/pkgs/applications/science/electronics/pcb/default.nix
@@ -1,6 +1,6 @@
 { lib, stdenv
 , fetchurl
-, pkgconfig
+, pkg-config
 , gtk2
 , bison
 , intltool
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
-    pkgconfig
+    pkg-config
     bison
     intltool
     flex
diff --git a/pkgs/applications/science/electronics/pulseview/default.nix b/pkgs/applications/science/electronics/pulseview/default.nix
index f43717389b5..00c830fcd33 100644
--- a/pkgs/applications/science/electronics/pulseview/default.nix
+++ b/pkgs/applications/science/electronics/pulseview/default.nix
@@ -1,4 +1,4 @@
-{ mkDerivation, lib, fetchurl, pkgconfig, cmake, glib, boost, libsigrok
+{ mkDerivation, lib, fetchurl, pkg-config, cmake, glib, boost, libsigrok
 , libsigrokdecode, libserialport, libzip, udev, libusb1, libftdi1, glibmm
 , pcre, librevisa, python3, qtbase, qtsvg
 }:
@@ -12,7 +12,7 @@ mkDerivation rec {
     sha256 = "0bvgmkgz37n2bi9niskpl05hf7rsj1lj972fbrgnlz25s4ywxrwy";
   };
 
-  nativeBuildInputs = [ cmake pkgconfig ];
+  nativeBuildInputs = [ cmake pkg-config ];
 
   buildInputs = [
     glib boost libsigrok libsigrokdecode libserialport libzip udev libusb1 libftdi1 glibmm
diff --git a/pkgs/applications/science/electronics/xcircuit/default.nix b/pkgs/applications/science/electronics/xcircuit/default.nix
index 013f5a098bc..68322a19178 100644
--- a/pkgs/applications/science/electronics/xcircuit/default.nix
+++ b/pkgs/applications/science/electronics/xcircuit/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, autoreconfHook, automake, pkgconfig
+{ lib, stdenv, fetchurl, autoreconfHook, automake, pkg-config
 , cairo, ghostscript, ngspice, tcl, tk, xorg, zlib }:
 
 let
@@ -14,7 +14,7 @@ in stdenv.mkDerivation {
     sha256 = "1h1ywc3mr7plvwnhdii2zgnnv5ih2nhyl4qbdjpi83dq0aq1s2mn";
   };
 
-  nativeBuildInputs = [ autoreconfHook automake pkgconfig ];
+  nativeBuildInputs = [ autoreconfHook automake pkg-config ];
   hardeningDisable = [ "format" ];
 
   configureFlags = [
diff --git a/pkgs/applications/science/electronics/xoscope/default.nix b/pkgs/applications/science/electronics/xoscope/default.nix
index 26fbadc6159..5052a3715ef 100644
--- a/pkgs/applications/science/electronics/xoscope/default.nix
+++ b/pkgs/applications/science/electronics/xoscope/default.nix
@@ -1,4 +1,4 @@
-{lib, stdenv, fetchurl, gtk2, pkgconfig}:
+{lib, stdenv, fetchurl, gtk2, pkg-config}:
 
 stdenv.mkDerivation rec {
   name = "xoscope-2.0";
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "00xlvvqyw6l1ljbsx1vgx2v1jfh0xacz1a0yhq1dj6yxf5wh58x8";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ gtk2 ];
 
   # from: https://aur.archlinux.org/packages.php?ID=12140&detail=1
diff --git a/pkgs/applications/science/geometry/drgeo/default.nix b/pkgs/applications/science/geometry/drgeo/default.nix
index a147cb305cc..59d7315ef41 100644
--- a/pkgs/applications/science/geometry/drgeo/default.nix
+++ b/pkgs/applications/science/geometry/drgeo/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchurl, libglade, gtk2, guile, libxml2, perl
-, intltool, libtool, pkgconfig }:
+, intltool, libtool, pkg-config }:
 
 stdenv.mkDerivation rec {
   pname = "drgeo";
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   patches = [ ./struct.patch ];
 
   buildInputs = [libglade gtk2 guile libxml2
-    perl intltool libtool pkgconfig];
+    perl intltool libtool pkg-config];
 
   prebuild = ''
     cp drgeo.desktop.in drgeo.desktop
diff --git a/pkgs/applications/science/logic/coq/default.nix b/pkgs/applications/science/logic/coq/default.nix
index 54842dd4769..a2ff8382947 100644
--- a/pkgs/applications/science/logic/coq/default.nix
+++ b/pkgs/applications/science/logic/coq/default.nix
@@ -5,7 +5,7 @@
 # - The exact version can be specified through the `version` argument to
 #   the derivation; it defaults to the latest stable version.
 
-{ lib, stdenv, fetchzip, writeText, pkgconfig, gnumake42
+{ lib, stdenv, fetchzip, writeText, pkg-config, gnumake42
 , customOCamlPackages ? null
 , ocamlPackages_4_05, ocamlPackages_4_09, ocamlPackages_4_10, ncurses
 , buildIde ? !(stdenv.isDarwin && lib.versionAtLeast version "8.10")
@@ -121,7 +121,7 @@ self = stdenv.mkDerivation {
     '';
   };
 
-  nativeBuildInputs = [ pkgconfig ] ++ optional (!versionAtLeast "8.6") gnumake42;
+  nativeBuildInputs = [ pkg-config ] ++ optional (!versionAtLeast "8.6") gnumake42;
   buildInputs = [ ncurses ] ++ ocamlBuildInputs
     ++ optionals buildIde
       (if versionAtLeast "8.10"
diff --git a/pkgs/applications/science/logic/cvc4/default.nix b/pkgs/applications/science/logic/cvc4/default.nix
index fd31a5732e3..b0b3e5e610e 100644
--- a/pkgs/applications/science/logic/cvc4/default.nix
+++ b/pkgs/applications/science/logic/cvc4/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, cmake, cln, gmp, git, swig, pkgconfig
+{ lib, stdenv, fetchFromGitHub, cmake, cln, gmp, git, swig, pkg-config
 , readline, libantlr3c, boost, jdk, python3, antlr3_4
 }:
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
     sha256 = "1rhs4pvzaa1wk00czrczp58b2cxfghpsnq534m0l3snnya2958jp";
   };
 
-  nativeBuildInputs = [ pkgconfig cmake ];
+  nativeBuildInputs = [ pkg-config cmake ];
   buildInputs = [ gmp git python3.pkgs.toml cln readline swig libantlr3c antlr3_4 boost jdk python3 ];
   configureFlags = [
     "--enable-language-bindings=c,c++,java"
diff --git a/pkgs/applications/science/logic/elan/default.nix b/pkgs/applications/science/logic/elan/default.nix
index d094019dbe9..bb10998b2f4 100644
--- a/pkgs/applications/science/logic/elan/default.nix
+++ b/pkgs/applications/science/logic/elan/default.nix
@@ -1,4 +1,4 @@
-{ lib, pkgconfig, curl, openssl, zlib, fetchFromGitHub, rustPlatform }:
+{ lib, pkg-config, curl, openssl, zlib, fetchFromGitHub, rustPlatform }:
 
 rustPlatform.buildRustPackage rec {
   pname = "elan";
@@ -13,7 +13,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "sha256-2fYicpoEERwD4OjdpseKQOkDvZlb7NnOZcb6Tu+rQdA=";
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
 
   buildInputs = [ curl zlib openssl ];
 
diff --git a/pkgs/applications/science/logic/ott/default.nix b/pkgs/applications/science/logic/ott/default.nix
index 3542dab9382..8752c4ef59d 100644
--- a/pkgs/applications/science/logic/ott/default.nix
+++ b/pkgs/applications/science/logic/ott/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, ocaml, opaline }:
+{ lib, stdenv, fetchFromGitHub, pkg-config, ocaml, opaline }:
 
 stdenv.mkDerivation rec {
   pname = "ott";
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
     sha256 = "0l81126i2qkz11fs5yrjdgymnqgjcs5avb7f951h61yh1s68jpnn";
   };
 
-  nativeBuildInputs = [ pkgconfig opaline ];
+  nativeBuildInputs = [ pkg-config opaline ];
   buildInputs = [ ocaml ];
 
   installTargets = "ott.install";
diff --git a/pkgs/applications/science/logic/prooftree/default.nix b/pkgs/applications/science/logic/prooftree/default.nix
index 4db3c333e97..2606b94f4bb 100644
--- a/pkgs/applications/science/logic/prooftree/default.nix
+++ b/pkgs/applications/science/logic/prooftree/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, pkgconfig, ncurses, ocamlPackages }:
+{ lib, stdenv, fetchurl, pkg-config, ncurses, ocamlPackages }:
 
 stdenv.mkDerivation rec {
   pname = "prooftree";
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
     sha256 = "0z1z4wqbqwgppkh2bm89fgy07a0y2m6g4lvcyzs09sm1ysklk2dh";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ ncurses ] ++ (with ocamlPackages; [
     ocaml findlib camlp5 lablgtk ]);
 
diff --git a/pkgs/applications/science/logic/twelf/default.nix b/pkgs/applications/science/logic/twelf/default.nix
index 73fe423673b..67779b2b572 100644
--- a/pkgs/applications/science/logic/twelf/default.nix
+++ b/pkgs/applications/science/logic/twelf/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, pkgconfig, smlnj, rsync }:
+{ lib, stdenv, fetchurl, pkg-config, smlnj, rsync }:
 
 stdenv.mkDerivation rec {
   pname = "twelf";
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
     sha256 = "0fi1kbs9hrdrm1x4k13angpjasxlyd1gc3ys8ah54i75qbcd9c4i";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ smlnj rsync ];
 
   buildPhase = ''
diff --git a/pkgs/applications/science/math/R/default.nix b/pkgs/applications/science/math/R/default.nix
index d9fbc626e00..7cbff99bf47 100644
--- a/pkgs/applications/science/math/R/default.nix
+++ b/pkgs/applications/science/math/R/default.nix
@@ -1,6 +1,6 @@
 { lib, stdenv, fetchurl, bzip2, gfortran, libX11, libXmu, libXt, libjpeg, libpng
 , libtiff, ncurses, pango, pcre2, perl, readline, tcl, texLive, tk, xz, zlib
-, less, texinfo, graphviz, icu, pkgconfig, bison, imake, which, jdk, blas, lapack
+, less, texinfo, graphviz, icu, pkg-config, bison, imake, which, jdk, blas, lapack
 , curl, Cocoa, Foundation, libobjc, libcxx, tzdata, fetchpatch
 , withRecommendedPackages ? true
 , enableStrictBarrier ? false
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     bzip2 gfortran libX11 libXmu libXt libXt libjpeg libpng libtiff ncurses
     pango pcre2 perl readline texLive xz zlib less texinfo graphviz icu
-    pkgconfig bison imake which blas lapack curl tcl tk jdk
+    pkg-config bison imake which blas lapack curl tcl tk jdk
   ] ++ lib.optionals stdenv.isDarwin [ Cocoa Foundation libobjc libcxx ];
 
   patches = [
diff --git a/pkgs/applications/science/math/cemu/default.nix b/pkgs/applications/science/math/cemu/default.nix
index 65dd05d3d62..cc8c3514a0b 100644
--- a/pkgs/applications/science/math/cemu/default.nix
+++ b/pkgs/applications/science/math/cemu/default.nix
@@ -9,7 +9,7 @@
 , qmake
 , git
 , libpng_apng
-, pkgconfig
+, pkg-config
 }:
 
 mkDerivation rec {
@@ -26,7 +26,7 @@ mkDerivation rec {
   nativeBuildInputs = [
     qmake
     git
-    pkgconfig
+    pkg-config
   ];
 
   buildInputs = [
diff --git a/pkgs/applications/science/math/ginac/default.nix b/pkgs/applications/science/math/ginac/default.nix
index c55e8d9adff..4bb9b0ae681 100644
--- a/pkgs/applications/science/math/ginac/default.nix
+++ b/pkgs/applications/science/math/ginac/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, cln, pkgconfig, readline, gmp, python }:
+{ lib, stdenv, fetchurl, cln, pkg-config, readline, gmp, python }:
 
 stdenv.mkDerivation rec {
   name = "ginac-1.8.0";
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ readline ] ++ lib.optional stdenv.isDarwin gmp;
 
-  nativeBuildInputs = [ pkgconfig python ];
+  nativeBuildInputs = [ pkg-config python ];
 
   preConfigure = "patchShebangs ginsh";
 
diff --git a/pkgs/applications/science/math/nasc/default.nix b/pkgs/applications/science/math/nasc/default.nix
index 37173f81978..931e83defdc 100644
--- a/pkgs/applications/science/math/nasc/default.nix
+++ b/pkgs/applications/science/math/nasc/default.nix
@@ -1,6 +1,6 @@
 { lib, stdenv
 , fetchFromGitHub
-, pkgconfig
+, pkg-config
 , fetchpatch
 , python3
 , meson
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
     intltool # for libqalculate
     meson
     ninja
-    pkgconfig
+    pkg-config
     python3
     vala
     wrapGAppsHook
diff --git a/pkgs/applications/science/math/pspp/default.nix b/pkgs/applications/science/math/pspp/default.nix
index 9d76ef75d26..6e9ff90315c 100644
--- a/pkgs/applications/science/math/pspp/default.nix
+++ b/pkgs/applications/science/math/pspp/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchurl, libxml2, readline, zlib, perl, cairo, gtk3, gsl
-, pkgconfig, gtksourceview, pango, gettext, dconf
+, pkg-config, gtksourceview, pango, gettext, dconf
 , makeWrapper, gsettings-desktop-schemas, hicolor-icon-theme
 , texinfo, ssw, python3
 }:
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
     sha256 = "0lqrash677b09zxdlxp89z6k02y4i23mbqg83956dwl69wc53dan";
   };
 
-  nativeBuildInputs = [ pkgconfig texinfo python3 ];
+  nativeBuildInputs = [ pkg-config texinfo python3 ];
   buildInputs = [ libxml2 readline zlib perl cairo gtk3 gsl
     gtksourceview pango gettext
     makeWrapper gsettings-desktop-schemas hicolor-icon-theme ssw
diff --git a/pkgs/applications/science/math/pynac/default.nix b/pkgs/applications/science/math/pynac/default.nix
index d49285c3e2f..00d35b491d6 100644
--- a/pkgs/applications/science/math/pynac/default.nix
+++ b/pkgs/applications/science/math/pynac/default.nix
@@ -2,7 +2,7 @@
 , fetchFromGitHub
 , fetchurl
 , autoreconfHook
-, pkgconfig
+, pkg-config
 , flint
 , gmp
 , python3
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [
     autoreconfHook
-    pkgconfig
+    pkg-config
   ];
 
   patches = [
diff --git a/pkgs/applications/science/math/qalculate-gtk/default.nix b/pkgs/applications/science/math/qalculate-gtk/default.nix
index d7d880df040..3d80d8c039e 100644
--- a/pkgs/applications/science/math/qalculate-gtk/default.nix
+++ b/pkgs/applications/science/math/qalculate-gtk/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, intltool, autoreconfHook, pkgconfig, libqalculate, gtk3, wrapGAppsHook }:
+{ lib, stdenv, fetchFromGitHub, intltool, autoreconfHook, pkg-config, libqalculate, gtk3, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   pname = "qalculate-gtk";
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" ];
 
-  nativeBuildInputs = [ intltool pkgconfig autoreconfHook wrapGAppsHook ];
+  nativeBuildInputs = [ intltool pkg-config autoreconfHook wrapGAppsHook ];
   buildInputs = [ libqalculate gtk3 ];
   enableParallelBuilding = true;
 
diff --git a/pkgs/applications/science/math/rofi-calc/default.nix b/pkgs/applications/science/math/rofi-calc/default.nix
index e7cf98c7266..9e0c8403646 100644
--- a/pkgs/applications/science/math/rofi-calc/default.nix
+++ b/pkgs/applications/science/math/rofi-calc/default.nix
@@ -1,7 +1,7 @@
 { lib, stdenv
 , fetchFromGitHub
 , autoreconfHook
-, pkgconfig
+, pkg-config
 , rofi-unwrapped
 , libqalculate
 , glib
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [
     autoreconfHook
-    pkgconfig
+    pkg-config
     gobject-introspection
     wrapGAppsHook
   ];
diff --git a/pkgs/applications/science/math/sage/default.nix b/pkgs/applications/science/math/sage/default.nix
index 416f2b957b7..8ef1f5189e5 100644
--- a/pkgs/applications/science/math/sage/default.nix
+++ b/pkgs/applications/science/math/sage/default.nix
@@ -17,7 +17,7 @@ let
         inherit sage-src env-locations pynac singular;
         ecl = maxima-ecl.ecl;
         linbox = pkgs.linbox.override { withSage = true; };
-        pkg-config = pkgs.pkgconfig; # not to confuse with pythonPackages.pkgconfig
+        pkg-config = pkgs.pkg-config; # not to confuse with pythonPackages.pkg-config
       };
     };
   };
@@ -56,7 +56,7 @@ let
     inherit env-locations;
     inherit python3 singular palp flint pynac pythonEnv maxima-ecl;
     ecl = maxima-ecl.ecl;
-    pkg-config = pkgs.pkgconfig; # not to confuse with pythonPackages.pkgconfig
+    pkg-config = pkgs.pkg-config; # not to confuse with pythonPackages.pkg-config
   };
 
   # The documentation for sage, building it takes a lot of ram.
@@ -70,7 +70,7 @@ let
     inherit python3 pythonEnv;
     inherit sage-env;
     inherit pynac singular maxima-ecl;
-    pkg-config = pkgs.pkgconfig; # not to confuse with pythonPackages.pkgconfig
+    pkg-config = pkgs.pkg-config; # not to confuse with pythonPackages.pkg-config
     three = nodePackages.three;
   };
 
diff --git a/pkgs/applications/science/math/singular/default.nix b/pkgs/applications/science/math/singular/default.nix
index 8c5eac2c06d..fad05099a73 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, ncurses, readline, coreutils, pkgconfig
+{ stdenv, fetchurl, gmp, bison, perl, ncurses, readline, coreutils, pkg-config
 , lib
 , fetchpatch
 , autoreconfHook
@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     bison
     perl
-    pkgconfig
+    pkg-config
     autoreconfHook
   ];
 
diff --git a/pkgs/applications/science/misc/boinc/default.nix b/pkgs/applications/science/misc/boinc/default.nix
index e549fda1162..460ea1408ec 100644
--- a/pkgs/applications/science/misc/boinc/default.nix
+++ b/pkgs/applications/science/misc/boinc/default.nix
@@ -1,4 +1,4 @@
-{ fetchFromGitHub, lib, stdenv, autoconf, automake, pkgconfig, m4, curl,
+{ fetchFromGitHub, lib, stdenv, autoconf, automake, pkg-config, m4, curl,
 libGLU, libGL, libXmu, libXi, freeglut, libjpeg, libtool, wxGTK30, xcbutil,
 sqlite, gtk2, patchelf, libXScrnSaver, libnotify, libX11, libxcb }:
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     sha256 = "0nicpkag18xq0libfqqvs0im22mijpsxzfk272iwdd9l0lmgfvyd";
   };
 
-  nativeBuildInputs = [ libtool automake autoconf m4 pkgconfig ];
+  nativeBuildInputs = [ libtool automake autoconf m4 pkg-config ];
 
   buildInputs = [
     curl libGLU libGL libXmu libXi freeglut libjpeg wxGTK30 sqlite gtk2 libXScrnSaver
diff --git a/pkgs/applications/science/misc/openmodelica/default.nix b/pkgs/applications/science/misc/openmodelica/default.nix
index a18131993e5..cab0fa5ff5c 100644
--- a/pkgs/applications/science/misc/openmodelica/default.nix
+++ b/pkgs/applications/science/misc/openmodelica/default.nix
@@ -1,6 +1,6 @@
 {lib, stdenv, fetchgit, fetchsvn, autoconf, automake, libtool, gfortran, clang, cmake, gnumake,
 hwloc, jre, lapack, blas, hdf5, expat, ncurses, readline, qt4, webkitgtk, which,
-lp_solve, omniorb, sqlite, libatomic_ops, pkgconfig, file, gettext, flex, bison,
+lp_solve, omniorb, sqlite, libatomic_ops, pkg-config, file, gettext, flex, bison,
 doxygen, boost, openscenegraph, gnome2, xorg, git, bash, gtk2, makeWrapper }:
 
 let
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   buildInputs = [autoconf cmake automake libtool gfortran clang gnumake
     hwloc jre lapack blas hdf5 expat ncurses readline qt4 webkitgtk which
-    lp_solve omniorb sqlite libatomic_ops pkgconfig file gettext flex bison
+    lp_solve omniorb sqlite libatomic_ops pkg-config file gettext flex bison
     doxygen boost openscenegraph gnome2.gtkglext xorg.libXmu
     git gtk2 makeWrapper];
 
diff --git a/pkgs/applications/science/misc/openmvg/default.nix b/pkgs/applications/science/misc/openmvg/default.nix
index bf21983adcd..2e34f2d15d2 100644
--- a/pkgs/applications/science/misc/openmvg/default.nix
+++ b/pkgs/applications/science/misc/openmvg/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, cmake
+{ lib, stdenv, fetchFromGitHub, pkg-config, cmake
 , libjpeg ? null
 , zlib ? null
 , libpng ? null
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ libjpeg zlib libpng eigen libtiff ];
 
-  nativeBuildInputs = [ cmake pkgconfig ];
+  nativeBuildInputs = [ cmake pkg-config ];
 
   cmakeFlags = [
     "-DCMAKE_CXX_FLAGS=-std=c++11"
diff --git a/pkgs/applications/science/misc/openmvs/default.nix b/pkgs/applications/science/misc/openmvs/default.nix
index ec22aaa599b..731230130ca 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
+{ lib, stdenv, fetchFromGitHub, pkg-config, cmake
 , eigen, opencv, ceres-solver, cgal, boost, vcg
 , gmp, mpfr, glog, gflags, libjpeg_turbo }:
 
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
 
   buildInputs = [ eigen opencv ceres-solver cgal boost vcg gmp mpfr glog gflags libjpeg_turbo ];
 
-  nativeBuildInputs = [ cmake pkgconfig ];
+  nativeBuildInputs = [ cmake pkg-config ];
 
   preConfigure = ''
     cmakeFlagsArray=(
diff --git a/pkgs/applications/science/misc/root/default.nix b/pkgs/applications/science/misc/root/default.nix
index 425d3e1e4b9..2f3d57c31e7 100644
--- a/pkgs/applications/science/misc/root/default.nix
+++ b/pkgs/applications/science/misc/root/default.nix
@@ -1,6 +1,6 @@
 { stdenv, lib, fetchurl, makeWrapper, cmake, ftgl, gl2ps, glew, gsl, llvm_5
 , libX11, libXpm, libXft, libXext, libGLU, libGL, libxml2, lz4, lzma, pcre
-, pkgconfig, python, xxHash, zlib, zstd
+, pkg-config, python, xxHash, zlib, zstd
 , libAfterImage, giflib, libjpeg, libtiff, libpng
 , Cocoa, OpenGL, noSplash ? false }:
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
     sha256 = "0mqvj42nax0bmz8h83jjlwjm3xxjy1n0n10inc8csip9ly28fs64";
   };
 
-  nativeBuildInputs = [ makeWrapper cmake pkgconfig ];
+  nativeBuildInputs = [ makeWrapper cmake pkg-config ];
   buildInputs = [ ftgl gl2ps glew pcre zlib zstd llvm_5 libxml2 lz4 lzma gsl xxHash libAfterImage giflib libjpeg libtiff libpng python.pkgs.numpy ]
     ++ lib.optionals (!stdenv.isDarwin) [ libX11 libXpm libXft libXext libGLU libGL ]
     ++ lib.optionals (stdenv.isDarwin) [ Cocoa OpenGL ]
diff --git a/pkgs/applications/science/robotics/qgroundcontrol/default.nix b/pkgs/applications/science/robotics/qgroundcontrol/default.nix
index 023a4fc8b6a..95c8aebd32d 100644
--- a/pkgs/applications/science/robotics/qgroundcontrol/default.nix
+++ b/pkgs/applications/science/robotics/qgroundcontrol/default.nix
@@ -1,7 +1,7 @@
 { lib, mkDerivation, fetchFromGitHub, SDL2
 , qtbase, qtcharts, qtlocation, qtserialport, qtsvg, qtquickcontrols2
 , qtgraphicaleffects, qtspeech, qtx11extras, qmake, qttools
-, gst_all_1, wayland, pkgconfig
+, gst_all_1, wayland, pkg-config
 }:
 
 mkDerivation rec {
@@ -19,7 +19,7 @@ mkDerivation rec {
 
   enableParallelBuilding = true;
   buildInputs = [ SDL2 ] ++ gstInputs ++ qtInputs;
-  nativeBuildInputs = [ pkgconfig qmake qttools ];
+  nativeBuildInputs = [ pkg-config qmake qttools ];
 
   preConfigure = ''
     mkdir build