treewide: pkgs.pkgconfig -> pkgs.pkg-config, move pkgconfig to alias.nix

continuation of #109595

pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.

python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.

pkgs/applications/window-managers/i3/easyfocus.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, xorgproto, libxcb, xcbutilkeysyms
+{ lib, stdenv, fetchFromGitHub, pkg-config, xorgproto, libxcb, xcbutilkeysyms
 , xorg , i3ipc-glib , glib
 }:
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
     sha256 = "1db23vzzmp0hnfss1fkd80za6d2pajx7hdwikw50pk95jq0w8wfm";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ libxcb xcbutilkeysyms xorgproto xorg.libX11.dev i3ipc-glib glib.dev ];
 
   # Makefile has no rule for 'install'

pkgs/applications/window-managers/i3/i3ipc-glib.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, xorgproto, libxcb
+{ lib, stdenv, fetchFromGitHub, pkg-config, xorgproto, libxcb
 , autoreconfHook, json-glib, gtk-doc, which
 , gobject-introspection
 }:
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
     sha256 = "01fzvrbnzcwx0vxw29igfpza9zwzp2s7msmzb92v01z0rz0y5m0p";
   };
 
-  nativeBuildInputs = [ autoreconfHook which pkgconfig ];
+  nativeBuildInputs = [ autoreconfHook which pkg-config ];
 
   buildInputs = [ libxcb json-glib gtk-doc xorgproto gobject-introspection ];
 

pkgs/applications/window-managers/i3/lock-color.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkgconfig, libxcb,
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkg-config, libxcb,
   xcbutilkeysyms , xcbutilimage, pam, libX11, libev, cairo, libxkbcommon,
   libxkbfile, libjpeg_turbo, xcbutilxrm
 }:
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
     sha256 = "10h50a6p9ivqjz8hd5pn9l03vz6y9dxdx68bprqssfzdkzqnzaiv";
   };
 
-  nativeBuildInputs = [ autoreconfHook pkgconfig ];
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
   buildInputs = [ libxcb xcbutilkeysyms xcbutilimage pam libX11
     libev cairo libxkbcommon libxkbfile libjpeg_turbo xcbutilxrm ];
 

pkgs/applications/window-managers/i3/lock.nix

@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, which, pkgconfig, libxcb, xcbutilkeysyms, xcbutilimage,
+{ fetchurl, lib, stdenv, which, pkg-config, libxcb, xcbutilkeysyms, xcbutilimage,
   xcbutilxrm, pam, libX11, libev, cairo, libxkbcommon, libxkbfile }:
 
 stdenv.mkDerivation rec {
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
     sha256 = "02szjsaz7rqrdkd0r2nwgwa85c4hwfrcskxw7ryk695kmjcfhzv3";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ which libxcb xcbutilkeysyms xcbutilimage xcbutilxrm
     pam libX11 libev cairo libxkbcommon libxkbfile ];
 

pkgs/applications/window-managers/i3/status-rust.nix

@@ -1,7 +1,7 @@
 { lib, stdenv
 , rustPlatform
 , fetchFromGitHub
-, pkgconfig
+, pkg-config
 , makeWrapper
 , dbus
 , libpulseaudio
@@ -22,7 +22,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "0qqkcgl9iz4kxl1a2vv2p7vy7wxn970y28jynf3n7hfp16i3liy2";
 
-  nativeBuildInputs = [ pkgconfig makeWrapper ];
+  nativeBuildInputs = [ pkg-config makeWrapper ];
 
   buildInputs = [ dbus libpulseaudio notmuch ];
 

pkgs/applications/window-managers/i3/status.nix

@@ -1,4 +1,4 @@
-{ fetchurl, lib, stdenv, libconfuse, yajl, alsaLib, libpulseaudio, libnl, pkgconfig, asciidoc, xmlto, docbook_xml_dtd_45, docbook_xsl }:
+{ fetchurl, lib, stdenv, libconfuse, yajl, alsaLib, libpulseaudio, libnl, pkg-config, asciidoc, xmlto, docbook_xml_dtd_45, docbook_xsl }:
 
 stdenv.mkDerivation rec {
   name = "i3status-2.13";
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "0rhlzb96mw64z2jnhwz9nibc7pxg549626lz5642xxk5hpzwk2ff";
   };
 
-  nativeBuildInputs = [ pkgconfig asciidoc xmlto docbook_xml_dtd_45 docbook_xsl ];
+  nativeBuildInputs = [ pkg-config asciidoc xmlto docbook_xml_dtd_45 docbook_xsl ];
   buildInputs = [ libconfuse yajl alsaLib libpulseaudio libnl ];
 
   makeFlags = [ "all" "PREFIX=$(out)" ];

pkgs/applications/window-managers/i3/wmfocus.nix

@@ -1,5 +1,5 @@
 { lib, stdenv, fetchFromGitHub, rustPlatform
-, xorg, python3, pkgconfig, cairo, libxkbcommon }:
+, xorg, python3, pkg-config, cairo, libxkbcommon }:
 
 rustPlatform.buildRustPackage rec {
   pname = "wmfocus";
@@ -14,7 +14,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "0rczas6sgcppacz48xx7sarkvc4s2sgcdz6c661d7vcry1y46xms";
 
-  nativeBuildInputs = [ python3 pkgconfig ];
+  nativeBuildInputs = [ python3 pkg-config ];
   buildInputs = [ cairo libxkbcommon xorg.xcbutilkeysyms ];
 
   # For now, this is the only available featureset. This is also why the file is