qt5: simplify package functions' definitions and calls

Rely on callPackage whenever possible.

pkgs/development/libraries/qt-5/5.15/default.nix

@@ -16,17 +16,7 @@
   fetchpatch,
   fetchFromGitHub,
   makeSetupHook,
-  makeWrapper,
-  bison,
-  cups ? null,
-  harfbuzz,
-  libGL,
-  perl,
   python3,
-  gstreamer,
-  gst-plugins-base,
-  gtk3,
-  dconf,
   llvmPackages_19,
   darwin,
 
@@ -282,14 +272,7 @@ let
       qtbase = callPackage ../modules/qtbase.nix {
         inherit (srcs.qtbase) src version;
         patches = patches.qtbase;
-        inherit
-          bison
-          cups
-          harfbuzz
-          libGL
-          ;
         withGtk3 = !stdenv.hostPlatform.isDarwin;
-        inherit dconf gtk3;
         inherit developerBuild decryptSslTraffic;
       };
 
@@ -305,9 +288,7 @@ let
       qtlocation = callPackage ../modules/qtlocation.nix { };
       qtlottie = callPackage ../modules/qtlottie.nix { };
       qtmacextras = callPackage ../modules/qtmacextras.nix { };
-      qtmultimedia = callPackage ../modules/qtmultimedia.nix {
-        inherit gstreamer gst-plugins-base;
-      };
+      qtmultimedia = callPackage ../modules/qtmultimedia.nix { };
       qtnetworkauth = callPackage ../modules/qtnetworkauth.nix { };
       qtpim = callPackage ../modules/qtpim.nix { };
       qtpositioning = callPackage ../modules/qtpositioning.nix { };

pkgs/development/libraries/qt-5/modules/qtmultimedia.nix

@@ -6,8 +6,7 @@
   qtdeclarative,
   pkg-config,
   alsa-lib,
-  gstreamer,
-  gst-plugins-base,
+  gst_all_1,
   libpulseaudio,
   wayland,
 }:
@@ -19,16 +18,18 @@ qtModule {
     qtdeclarative
   ];
   nativeBuildInputs = [ pkg-config ];
-  buildInputs = [
-    gstreamer
-    gst-plugins-base
-  ]
-  # https://github.com/NixOS/nixpkgs/pull/169336 regarding libpulseaudio
-  ++ lib.optionals stdenv.hostPlatform.isLinux [
-    libpulseaudio
-    alsa-lib
-    wayland
-  ];
+  buildInputs =
+    with gst_all_1;
+    [
+      gstreamer
+      gst-plugins-base
+    ]
+    # https://github.com/NixOS/nixpkgs/pull/169336 regarding libpulseaudio
+    ++ lib.optionals stdenv.hostPlatform.isLinux [
+      libpulseaudio
+      alsa-lib
+      wayland
+    ];
   outputs = [
     "bin"
     "dev"

pkgs/top-level/all-packages.nix

@@ -7376,35 +7376,7 @@ with pkgs;
     python3 = null;
   };
 
-  qt5 = recurseIntoAttrs (
-    makeOverridable (import ../development/libraries/qt-5/5.15) {
-      inherit (__splicedPackages)
-        makeScopeWithSplicing'
-        generateSplicesForMkScope
-        lib
-        stdenv
-        gcc14Stdenv
-        fetchurl
-        fetchpatch
-        fetchgit
-        fetchFromGitHub
-        makeSetupHook
-        makeWrapper
-        bison
-        cups
-        dconf
-        harfbuzz
-        libGL
-        perl
-        gtk3
-        python3
-        llvmPackages_19
-        darwin
-        ;
-      inherit (__splicedPackages.gst_all_1) gstreamer gst-plugins-base;
-      inherit config;
-    }
-  );
+  qt5 = recurseIntoAttrs (__splicedPackages.callPackage ../development/libraries/qt-5/5.15 { });
 
   libsForQt5 = recurseIntoAttrs (
     import ./qt5-packages.nix {