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/development/libraries/gstreamer/bad/default.nix

@@ -5,7 +5,7 @@
 , ninja
 , gettext
 , config
-, pkgconfig
+, pkg-config
 , python3
 , gst-plugins-base
 , orc
@@ -105,7 +105,7 @@ in stdenv.mkDerivation rec {
   nativeBuildInputs = [
     meson
     ninja
-    pkgconfig
+    pkg-config
     orc # for orcc
     python3
     gettext

pkgs/development/libraries/gstreamer/base/default.nix

@@ -1,7 +1,7 @@
 { stdenv
 , fetchurl
 , lib
-, pkgconfig
+, pkg-config
 , meson
 , ninja
 , gettext
@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     meson
     ninja
-    pkgconfig
+    pkg-config
     python3
     gettext
     orc

pkgs/development/libraries/gstreamer/core/default.nix

@@ -2,7 +2,7 @@
 , fetchurl
 , meson
 , ninja
-, pkgconfig
+, pkg-config
 , gettext
 , gobject-introspection
 , bison
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     meson
     ninja
-    pkgconfig
+    pkg-config
     gettext
     bison
     flex
@@ -77,7 +77,7 @@ stdenv.mkDerivation rec {
     "-Dexamples=disabled" # requires many dependencies and probably not useful for our users
     "-Ddoc=disabled" # `hotdoc` not packaged in nixpkgs as of writing
   ] ++ lib.optionals stdenv.isDarwin [
-    # darwin.libunwind doesn't have pkgconfig definitions so meson doesn't detect it.
+    # darwin.libunwind doesn't have pkg-config definitions so meson doesn't detect it.
     "-Dlibunwind=disabled"
     "-Dlibdw=disabled"
   ];

pkgs/development/libraries/gstreamer/devtools/default.nix

@@ -2,7 +2,7 @@
 , fetchurl
 , meson
 , ninja
-, pkgconfig
+, pkg-config
 , gstreamer
 , gst-plugins-base
 , python3
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     meson
     ninja
-    pkgconfig
+    pkg-config
     gobject-introspection
 
     # documentation

pkgs/development/libraries/gstreamer/ges/default.nix

@@ -2,7 +2,7 @@
 , fetchurl
 , meson
 , ninja
-, pkgconfig
+, pkg-config
 , python3
 , bash-completion
 , gst-plugins-base
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     meson
     ninja
-    pkgconfig
+    pkg-config
     gettext
     gobject-introspection
     gst-devtools

pkgs/development/libraries/gstreamer/good/default.nix

@@ -3,7 +3,7 @@
 , meson
 , nasm
 , ninja
-, pkgconfig
+, pkg-config
 , python3
 , gst-plugins-base
 , orc
@@ -61,7 +61,7 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
-    pkgconfig
+    pkg-config
     python3
     meson
     ninja

pkgs/development/libraries/gstreamer/gstreamermm/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, file, glibmm, gst_all_1, gnome3 }:
+{ stdenv, fetchurl, pkg-config, file, glibmm, gst_all_1, gnome3 }:
 stdenv.mkDerivation rec {
   pname = "gstreamermm";
   version = "1.10.0";
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "dev" ];
 
-  nativeBuildInputs = [ pkgconfig file ];
+  nativeBuildInputs = [ pkg-config file ];
 
   propagatedBuildInputs = [ glibmm gst_all_1.gst-plugins-base ];
 

pkgs/development/libraries/gstreamer/libav/default.nix

@@ -3,7 +3,7 @@
 , fetchurl
 , meson
 , ninja
-, pkgconfig
+, pkg-config
 , python3
 , gst-plugins-base
 , gettext
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
     meson
     ninja
     gettext
-    pkgconfig
+    pkg-config
     python3
   ];
 

pkgs/development/libraries/gstreamer/rtsp-server/default.nix

@@ -2,7 +2,7 @@
 , fetchurl
 , meson
 , ninja
-, pkgconfig
+, pkg-config
 , python3
 , gettext
 , gobject-introspection
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
     ninja
     gettext
     gobject-introspection
-    pkgconfig
+    pkg-config
     python3
 
     # documentation

pkgs/development/libraries/gstreamer/ugly/default.nix

@@ -2,7 +2,7 @@
 , fetchurl
 , meson
 , ninja
-, pkgconfig
+, pkg-config
 , python3
 , gst-plugins-base
 , orc
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
     meson
     ninja
     gettext
-    pkgconfig
+    pkg-config
     python3
   ];
 

pkgs/development/libraries/gstreamer/vaapi/default.nix

@@ -2,7 +2,7 @@
 , fetchurl
 , meson
 , ninja
-, pkgconfig
+, pkg-config
 , gst-plugins-base
 , bzip2
 , libva
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     meson
     ninja
-    pkgconfig
+    pkg-config
     bzip2
 
     # documentation