diff --git a/pkgs/by-name/kt/ktextaddons/package.nix b/pkgs/by-name/kt/ktextaddons/package.nix
deleted file mode 100644
index 0e0d32871452..000000000000
--- a/pkgs/by-name/kt/ktextaddons/package.nix
+++ /dev/null
@@ -1,40 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  cmake,
-  libsForQt5,
-}:
-stdenv.mkDerivation (finalAttrs: {
-  pname = "ktextaddons";
-  version = "1.3.2";
-
-  src = fetchurl {
-    url = "mirror://kde/stable/ktextaddons/ktextaddons-${finalAttrs.version}.tar.xz";
-    hash = "sha256-mB7Hh2Ljrg8D2GxDyHCa1s6CVmg5DDkhwafEqtSqUeM=";
-  };
-
-  nativeBuildInputs = [
-    cmake
-  ]
-  ++ (with libsForQt5; [
-    extra-cmake-modules
-    wrapQtAppsHook
-  ]);
-
-  buildInputs = with libsForQt5; [
-    karchive
-    kconfigwidgets
-    kcoreaddons
-    ki18n
-    kxmlgui
-    qtkeychain
-  ];
-
-  meta = {
-    description = "Various text handling addons for KDE applications";
-    homepage = "https://invent.kde.org/libraries/ktextaddons/";
-    license = lib.licenses.gpl2Plus;
-    maintainers = [ ];
-  };
-})
diff --git a/pkgs/development/libraries/futuresql/default.nix b/pkgs/development/libraries/futuresql/default.nix
index 88f9877e0e92..05e3a86e519b 100644
--- a/pkgs/development/libraries/futuresql/default.nix
+++ b/pkgs/development/libraries/futuresql/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     kdePackages.extra-cmake-modules
   ];
   buildInputs = [ qtbase ];
-  cmakeFlags = [ "-DQT_MAJOR_VERSION=${lib.versions.major qtbase.version}" ];
+  cmakeFlags = [ "-DQT_MAJOR_VERSION=6" ];
 
   # a library, nothing to wrap
   dontWrapQtApps = true;
diff --git a/pkgs/development/libraries/kdb/default.nix b/pkgs/development/libraries/kdb/default.nix
deleted file mode 100644
index e04804e60f84..000000000000
--- a/pkgs/development/libraries/kdb/default.nix
+++ /dev/null
@@ -1,49 +0,0 @@
-{
-  mkDerivation,
-  lib,
-  fetchFromGitLab,
-  extra-cmake-modules,
-  qtbase,
-  kcoreaddons,
-  python3,
-  sqlite,
-  libpq,
-  libmysqlclient,
-  qttools,
-}:
-
-mkDerivation {
-  pname = "kdb";
-  version = "3.2.0-unstable-2025-10-17";
-
-  src = fetchFromGitLab {
-    domain = "invent.kde.org";
-    owner = "libraries";
-    repo = "kdb";
-    rev = "819f9f61d629ffd80990ae17ae6c8078721a142b";
-    hash = "sha256-XkpFFzTgLEjPxEzwinbGhHRTULQrhl5TdakJlQuI27A=";
-  };
-
-  nativeBuildInputs = [
-    extra-cmake-modules
-    qttools
-  ];
-
-  buildInputs = [
-    kcoreaddons
-    python3
-    sqlite
-    libpq
-    libmysqlclient
-  ];
-
-  propagatedBuildInputs = [ qtbase ];
-
-  meta = {
-    description = "Database connectivity and creation framework for various database vendors";
-    mainProgram = "kdb3_sqlite3_dump";
-    license = lib.licenses.lgpl2;
-    platforms = lib.platforms.linux;
-    maintainers = with lib.maintainers; [ zraexy ];
-  };
-}
diff --git a/pkgs/development/libraries/kde-frameworks/attica.nix b/pkgs/development/libraries/kde-frameworks/attica.nix
index 69fe068ef980..720987111984 100644
--- a/pkgs/development/libraries/kde-frameworks/attica.nix
+++ b/pkgs/development/libraries/kde-frameworks/attica.nix
@@ -1,12 +1,16 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
 }:
 
 mkDerivation {
   pname = "attica";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [ qtbase ];
   outputs = [
     "out"
diff --git a/pkgs/development/libraries/kde-frameworks/breeze-icons.nix b/pkgs/development/libraries/kde-frameworks/breeze-icons.nix
index 1b1176ba8f6b..c9fb1668bb47 100644
--- a/pkgs/development/libraries/kde-frameworks/breeze-icons.nix
+++ b/pkgs/development/libraries/kde-frameworks/breeze-icons.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   gtk3,
   qtsvg,
@@ -9,6 +10,7 @@
 mkDerivation {
   pname = "breeze-icons";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     gtk3
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/default.nix b/pkgs/development/libraries/kde-frameworks/default.nix
index ea46176de9fe..702a7f53b745 100644
--- a/pkgs/development/libraries/kde-frameworks/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/default.nix
@@ -27,6 +27,7 @@
   libsForQt5,
   lib,
   fetchurl,
+  kdePackages,
 }:
 
 let
@@ -140,7 +141,7 @@ let
     in
     (
       {
-        extra-cmake-modules = callPackage ./extra-cmake-modules { };
+        inherit (kdePackages) extra-cmake-modules;
 
         # TIER 1
         attica = callPackage ./attica.nix { };
@@ -154,11 +155,8 @@ let
         kdnssd = callPackage ./kdnssd.nix { };
         kguiaddons = callPackage ./kguiaddons.nix { };
         ki18n = callPackage ./ki18n.nix { };
-        kidletime = callPackage ./kidletime.nix { };
         kirigami2 = callPackage ./kirigami2.nix { };
-        kitemmodels = callPackage ./kitemmodels.nix { };
         kitemviews = callPackage ./kitemviews.nix { };
-        kplotting = callPackage ./kplotting.nix { };
         kwayland = callPackage ./kwayland.nix { };
         kwidgetsaddons = callPackage ./kwidgetsaddons.nix { };
         kwindowsystem = callPackage ./kwindowsystem { };
@@ -175,63 +173,64 @@ let
         kjobwidgets = callPackage ./kjobwidgets.nix { };
         knotifications = callPackage ./knotifications.nix { };
         kpackage = callPackage ./kpackage { };
-        kunitconversion = callPackage ./kunitconversion.nix { };
         syndication = callPackage ./syndication.nix { };
 
         # TIER 3
         kactivities-stats = callPackage ./kactivities-stats.nix { };
         kbookmarks = callPackage ./kbookmarks.nix { };
-        kcmutils = callPackage ./kcmutils.nix { };
         kconfigwidgets = callPackage ./kconfigwidgets.nix { };
-        kdeclarative = callPackage ./kdeclarative.nix { };
         kded = callPackage ./kded.nix { };
-        kemoticons = callPackage ./kemoticons.nix { };
         kglobalaccel = callPackage ./kglobalaccel.nix { };
         kiconthemes = callPackage ./kiconthemes { };
-        kinit = callPackage ./kinit { };
         kio = callPackage ./kio { };
         knewstuff = callPackage ./knewstuff { };
-        knotifyconfig = callPackage ./knotifyconfig.nix { };
-        kparts = callPackage ./kparts.nix { };
         kservice = callPackage ./kservice { };
         ktextwidgets = callPackage ./ktextwidgets.nix { };
         kwallet = callPackage ./kwallet.nix { };
         kxmlgui = callPackage ./kxmlgui.nix { };
-        plasma-framework = callPackage ./plasma-framework.nix { };
 
         # TIER 4
         frameworkintegration = callPackage ./frameworkintegration.nix { };
-
-        # PORTING AIDS
-        kdelibs4support = callPackage ./kdelibs4support { };
-        kdesignerplugin = callPackage ./kdesignerplugin.nix { };
       }
       // lib.optionalAttrs config.allowAliases {
         baloo = mkThrow "baloo";
         bluez-qt = mkThrow "bluez-qt";
         kapidox = mkThrow "kapidox";
+        kcmutils = mkThrow "kcmutils";
         kcontacts = mkThrow "kcontacts";
         kdav = mkThrow "kdav";
+        kdeclarative = mkThrow "kdeclarative";
+        kdelibs4support = mkThrow "kdelibs4support";
+        kdesignerplugin = mkThrow "kdesignerplugin";
         kdesu = mkThrow "kdesu";
+        kemoticons = mkThrow "kemoticons";
         kfilemetadata = mkThrow "kfilemetadata";
         kholidays = mkThrow "kholidays";
         khtml = mkThrow "kthml";
         kimageformats = mkThrow "kimageformats";
+        kidletime = mkThrow "kidletime";
+        kinit = mkThrow "kinit";
+        kitemmodels = mkThrow "kitemmodels";
         kjs = mkThrow "kjs";
         kjsembed = mkThrow "kjsembed";
         kmediaplayer = mkThrow "kmediaplayer";
+        knotifyconfig = mkThrow "knotifyconfig";
+        kparts = mkThrow "kparts";
         kpeople = mkThrow "kpeople";
+        kplotting = mkThrow "kplotting";
         kpty = mkThrow "kpty";
         kpurpose = mkThrow "kpurpose";
         kquickcharts = mkThrow "kquickcharts";
         kross = mkThrow "kross";
         krunner = mkThrow "krunner";
         ktexteditor = mkThrow "ktexteditor";
+        kunitconversion = mkThrow "kunitconversion";
         kxmlrpcclient = mkThrow "kxmlrpcclient";
         modemmanager-qt = mkThrow "modemmanager-qt";
         networkmanager-qt = mkThrow "networkmanager-qt";
         oxygen-icons = mkThrow "oxygen-icons";
         oxygen-icons5 = mkThrow "oxygen-icons";
+        plasma-framework = mkThrow "plasma-framework";
         prison = mkThrow "prison";
         qqc2-desktop-style = mkThrow "qqc2-desktop-style";
         threadweaver = mkThrow "threadweaver";
diff --git a/pkgs/development/libraries/kde-frameworks/extra-cmake-modules/default.nix b/pkgs/development/libraries/kde-frameworks/extra-cmake-modules/default.nix
deleted file mode 100644
index ce8b89ef80bd..000000000000
--- a/pkgs/development/libraries/kde-frameworks/extra-cmake-modules/default.nix
+++ /dev/null
@@ -1,46 +0,0 @@
-{
-  mkDerivation,
-  lib,
-  fetchpatch,
-  bash,
-  cmake,
-  pkg-config,
-}:
-
-mkDerivation {
-  pname = "extra-cmake-modules";
-
-  patches = [
-    # https://invent.kde.org/frameworks/extra-cmake-modules/-/merge_requests/268
-    (fetchpatch {
-      url = "https://invent.kde.org/frameworks/extra-cmake-modules/-/commit/5862a6f5b5cd7ed5a7ce2af01e44747c36318220.patch";
-      sha256 = "10y36fc3hnpmcsmjgfxn1rp4chj5yrhgghj7m8gbmcai1q5jr0xj";
-    })
-  ];
-
-  outputs = [ "out" ]; # this package has no runtime components
-
-  nativeBuildInputs = [
-    cmake
-  ];
-
-  buildInputs = [
-    bash
-  ];
-
-  # note: these will be propagated into the same list extra-cmake-modules is in
-  propagatedBuildInputs = [
-    cmake
-    pkg-config
-  ];
-
-  strictDeps = true;
-
-  setupHook = ./setup-hook.sh;
-
-  meta = {
-    platforms = lib.platforms.linux ++ lib.platforms.darwin;
-    homepage = "https://invent.kde.org/frameworks/extra-cmake-modules";
-    license = lib.licenses.bsd2;
-  };
-}
diff --git a/pkgs/development/libraries/kde-frameworks/extra-cmake-modules/setup-hook.sh b/pkgs/development/libraries/kde-frameworks/extra-cmake-modules/setup-hook.sh
deleted file mode 100644
index b9205856425c..000000000000
--- a/pkgs/development/libraries/kde-frameworks/extra-cmake-modules/setup-hook.sh
+++ /dev/null
@@ -1,123 +0,0 @@
-ecmCMakeFlags() {
-    appendToVar cmakeFlags "-DECM_DIR=@out@/share/ECM/cmake"
-}
-
-preConfigureHooks+=(ecmCMakeFlags)
-
-ecmEnvHook() {
-    addToSearchPath XDG_DATA_DIRS "$1/share"
-    addToSearchPath XDG_CONFIG_DIRS "$1/etc/xdg"
-}
-addEnvHooks "$targetOffset" ecmEnvHook
-
-ecmPostHook() {
-    # Because we need to use absolute paths here, we must set *all* the paths.
-    appendToVar cmakeFlags "-DKDE_INSTALL_EXECROOTDIR=${!outputBin}"
-    appendToVar cmakeFlags "-DKDE_INSTALL_BINDIR=${!outputBin}/bin"
-    appendToVar cmakeFlags "-DKDE_INSTALL_SBINDIR=${!outputBin}/sbin"
-    appendToVar cmakeFlags "-DKDE_INSTALL_LIBDIR=${!outputLib}/lib"
-    appendToVar cmakeFlags "-DKDE_INSTALL_LIBEXECDIR=${!outputLib}/libexec"
-    appendToVar cmakeFlags "-DKDE_INSTALL_CMAKEPACKAGEDIR=${!outputDev}/lib/cmake"
-    appendToVar cmakeFlags "-DKDE_INSTALL_INCLUDEDIR=${!outputInclude}/include"
-    appendToVar cmakeFlags "-DKDE_INSTALL_LOCALSTATEDIR=/var"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DATAROOTDIR=${!outputBin}/share"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DATADIR=${!outputBin}/share"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DOCBUNDLEDIR=${!outputBin}/share/doc/HTML"
-    appendToVar cmakeFlags "-DKDE_INSTALL_KCFGDIR=${!outputBin}/share/config.kcfg"
-    appendToVar cmakeFlags "-DKDE_INSTALL_KCONFUPDATEDIR=${!outputBin}/share/kconf_update"
-    appendToVar cmakeFlags "-DKDE_INSTALL_KSERVICES5DIR=${!outputBin}/share/kservices5"
-    appendToVar cmakeFlags "-DKDE_INSTALL_KSERVICETYPES5DIR=${!outputBin}/share/kservicetypes5"
-    appendToVar cmakeFlags "-DKDE_INSTALL_KXMLGUI5DIR=${!outputBin}/share/kxmlgui5"
-    appendToVar cmakeFlags "-DKDE_INSTALL_KNOTIFY5RCDIR=${!outputBin}/share/knotifications5"
-    appendToVar cmakeFlags "-DKDE_INSTALL_ICONDIR=${!outputBin}/share/icons"
-    appendToVar cmakeFlags "-DKDE_INSTALL_LOCALEDIR=${!outputLib}/share/locale"
-    appendToVar cmakeFlags "-DKDE_INSTALL_SOUNDDIR=${!outputBin}/share/sounds"
-    appendToVar cmakeFlags "-DKDE_INSTALL_TEMPLATEDIR=${!outputBin}/share/templates"
-    appendToVar cmakeFlags "-DKDE_INSTALL_WALLPAPERDIR=${!outputBin}/share/wallpapers"
-    appendToVar cmakeFlags "-DKDE_INSTALL_APPDIR=${!outputBin}/share/applications"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DESKTOPDIR=${!outputBin}/share/desktop-directories"
-    appendToVar cmakeFlags "-DKDE_INSTALL_MIMEDIR=${!outputBin}/share/mime/packages"
-    appendToVar cmakeFlags "-DKDE_INSTALL_METAINFODIR=${!outputBin}/share/metainfo"
-    appendToVar cmakeFlags "-DKDE_INSTALL_MANDIR=${!outputBin}/share/man"
-    appendToVar cmakeFlags "-DKDE_INSTALL_INFODIR=${!outputBin}/share/info"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DBUSDIR=${!outputBin}/share/dbus-1"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DBUSINTERFACEDIR=${!outputBin}/share/dbus-1/interfaces"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DBUSSERVICEDIR=${!outputBin}/share/dbus-1/services"
-    appendToVar cmakeFlags "-DKDE_INSTALL_DBUSSYSTEMSERVICEDIR=${!outputBin}/share/dbus-1/system-services"
-    appendToVar cmakeFlags "-DKDE_INSTALL_SYSCONFDIR=${!outputBin}/etc"
-    appendToVar cmakeFlags "-DKDE_INSTALL_CONFDIR=${!outputBin}/etc/xdg"
-    appendToVar cmakeFlags "-DKDE_INSTALL_AUTOSTARTDIR=${!outputBin}/etc/xdg/autostart"
-
-    if [ "$(uname)" = "Darwin" ]; then
-        appendToVar cmakeFlags "-DKDE_INSTALL_BUNDLEDIR=${!outputBin}/Applications/KDE"
-    fi
-
-    if [ -n "${qtPluginPrefix-}" ]; then
-        appendToVar cmakeFlags "-DKDE_INSTALL_QTPLUGINDIR=${!outputBin}/$qtPluginPrefix"
-        appendToVar cmakeFlags "-DKDE_INSTALL_PLUGINDIR=${!outputBin}/$qtPluginPrefix"
-    fi
-
-    if [ -n "${qtQmlPrefix-}" ]; then
-        appendToVar cmakeFlags "-DKDE_INSTALL_QMLDIR=${!outputBin}/$qtQmlPrefix"
-    fi
-}
-postHooks+=(ecmPostHook)
-
-xdgDataSubdirs=( \
-    "config.kcfg" "kconf_update" "kservices5" "kservicetypes5" \
-    "kxmlgui5" "knotifications5" "icons" "locale" "sounds" "templates" \
-    "wallpapers" "applications" "desktop-directories" "mime" "appdata" "dbus-1" \
-)
-
-# ecmHostPathsSeen is an associative array of the paths that have already been
-# seen by ecmHostPathHook.
-declare -gA ecmHostPathsSeen
-
-ecmHostPathIsNotSeen() {
-    if [[ -n "${ecmHostPathsSeen["$1"]:-}" ]]; then
-        # The path has been seen before.
-        return 1
-    else
-        # The path has not been seen before.
-        # Now it is seen, so record it.
-        ecmHostPathsSeen["$1"]=1
-        return 0
-    fi
-}
-
-ecmHostPathHook() {
-    ecmHostPathIsNotSeen "$1" || return 0
-
-    local xdgConfigDir="$1/etc/xdg"
-    if [ -d "$xdgConfigDir" ]
-    then
-        qtWrapperArgs+=(--prefix XDG_CONFIG_DIRS : "$xdgConfigDir")
-    fi
-
-    for xdgDataSubdir in "${xdgDataSubdirs[@]}"
-    do
-        if [ -d "$1/share/$xdgDataSubdir" ]
-        then
-            qtWrapperArgs+=(--prefix XDG_DATA_DIRS : "$1/share")
-            break
-        fi
-    done
-
-    local manDir="$1/man"
-    if [ -d "$manDir" ]
-    then
-        qtWrapperArgs+=(--prefix MANPATH : "$manDir")
-    fi
-
-    local infoDir="$1/info"
-    if [ -d "$infoDir" ]
-    then
-        qtWrapperArgs+=(--prefix INFOPATH : "$infoDir")
-    fi
-
-    if [ -d "$1/dbus-1" ]
-    then
-        appendToVar propagatedUserEnvPkgs "$1"
-    fi
-}
-addEnvHooks "$targetOffset" ecmHostPathHook
diff --git a/pkgs/development/libraries/kde-frameworks/frameworkintegration.nix b/pkgs/development/libraries/kde-frameworks/frameworkintegration.nix
index bda5fe20d868..69ffb454a690 100644
--- a/pkgs/development/libraries/kde-frameworks/frameworkintegration.nix
+++ b/pkgs/development/libraries/kde-frameworks/frameworkintegration.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kbookmarks,
   kcompletion,
@@ -18,7 +19,10 @@
 
 mkDerivation {
   pname = "frameworkintegration";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     kbookmarks
     kcompletion
diff --git a/pkgs/development/libraries/kde-frameworks/kactivities-stats.nix b/pkgs/development/libraries/kde-frameworks/kactivities-stats.nix
index f69797dd8386..bcf2d97dce81 100644
--- a/pkgs/development/libraries/kde-frameworks/kactivities-stats.nix
+++ b/pkgs/development/libraries/kde-frameworks/kactivities-stats.nix
@@ -1,6 +1,7 @@
 {
   mkDerivation,
   lib,
+  cmake,
   extra-cmake-modules,
   boost,
   kactivities,
@@ -10,7 +11,10 @@
 
 mkDerivation {
   pname = "kactivities-stats";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     boost
     kactivities
diff --git a/pkgs/development/libraries/kde-frameworks/kactivities.nix b/pkgs/development/libraries/kde-frameworks/kactivities.nix
index 67ae3d5a58bf..fa1cedc61365 100644
--- a/pkgs/development/libraries/kde-frameworks/kactivities.nix
+++ b/pkgs/development/libraries/kde-frameworks/kactivities.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   boost,
   kconfig,
@@ -12,7 +13,10 @@
 
 mkDerivation {
   pname = "kactivities";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     boost
     kconfig
diff --git a/pkgs/development/libraries/kde-frameworks/karchive.nix b/pkgs/development/libraries/kde-frameworks/karchive.nix
index 0eb468244092..1b61ef1fffcf 100644
--- a/pkgs/development/libraries/kde-frameworks/karchive.nix
+++ b/pkgs/development/libraries/kde-frameworks/karchive.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   bzip2,
   xz,
@@ -12,6 +13,7 @@
 mkDerivation {
   pname = "karchive";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     qttools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/kauth/default.nix b/pkgs/development/libraries/kde-frameworks/kauth/default.nix
index b0943132b228..0206b38f35c4 100644
--- a/pkgs/development/libraries/kde-frameworks/kauth/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kauth/default.nix
@@ -3,6 +3,7 @@
   stdenv,
   mkDerivation,
   propagate,
+  cmake,
   extra-cmake-modules,
   kcoreaddons,
   qttools,
@@ -12,7 +13,10 @@
 
 mkDerivation {
   pname = "kauth";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = lib.optional enablePolkit polkit-qt ++ [ qttools ];
   propagatedBuildInputs = [ kcoreaddons ];
   patches = [
diff --git a/pkgs/development/libraries/kde-frameworks/kbookmarks.nix b/pkgs/development/libraries/kde-frameworks/kbookmarks.nix
index f74215126f64..b0f013ff6bc1 100644
--- a/pkgs/development/libraries/kde-frameworks/kbookmarks.nix
+++ b/pkgs/development/libraries/kde-frameworks/kbookmarks.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qttools,
   kcodecs,
@@ -15,6 +16,7 @@
 mkDerivation {
   pname = "kbookmarks";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     qttools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/kcalendarcore.nix b/pkgs/development/libraries/kde-frameworks/kcalendarcore.nix
index cdce670ac423..b2051eb89bc6 100644
--- a/pkgs/development/libraries/kde-frameworks/kcalendarcore.nix
+++ b/pkgs/development/libraries/kde-frameworks/kcalendarcore.nix
@@ -1,12 +1,16 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   libical,
 }:
 
 mkDerivation {
   pname = "kcalendarcore";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   propagatedBuildInputs = [ libical ];
   outputs = [
     "out"
diff --git a/pkgs/development/libraries/kde-frameworks/kcmutils.nix b/pkgs/development/libraries/kde-frameworks/kcmutils.nix
deleted file mode 100644
index 22d5df058af2..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kcmutils.nix
+++ /dev/null
@@ -1,37 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  kconfigwidgets,
-  kcoreaddons,
-  kdeclarative,
-  ki18n,
-  kiconthemes,
-  kitemviews,
-  kpackage,
-  kservice,
-  kxmlgui,
-  qtdeclarative,
-}:
-
-mkDerivation {
-  pname = "kcmutils";
-  outputs = [
-    "out"
-    "dev"
-  ];
-  nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [
-    kcoreaddons
-    kdeclarative
-    ki18n
-    kiconthemes
-    kitemviews
-    kpackage
-    kxmlgui
-    qtdeclarative
-  ];
-  propagatedBuildInputs = [
-    kconfigwidgets
-    kservice
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kcodecs.nix b/pkgs/development/libraries/kde-frameworks/kcodecs.nix
index 2b27c145750f..4a1f82f81566 100644
--- a/pkgs/development/libraries/kde-frameworks/kcodecs.nix
+++ b/pkgs/development/libraries/kde-frameworks/kcodecs.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
   qttools,
@@ -8,7 +9,10 @@
 
 mkDerivation {
   pname = "kcodecs";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     qttools
     gperf
diff --git a/pkgs/development/libraries/kde-frameworks/kcompletion.nix b/pkgs/development/libraries/kde-frameworks/kcompletion.nix
index e99b2bb3998a..991b54aafcba 100644
--- a/pkgs/development/libraries/kde-frameworks/kcompletion.nix
+++ b/pkgs/development/libraries/kde-frameworks/kcompletion.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kconfig,
   kwidgetsaddons,
@@ -9,7 +10,10 @@
 
 mkDerivation {
   pname = "kcompletion";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     kconfig
     kwidgetsaddons
diff --git a/pkgs/development/libraries/kde-frameworks/kconfig.nix b/pkgs/development/libraries/kde-frameworks/kconfig.nix
index f703b4e56472..52c05e13b05a 100644
--- a/pkgs/development/libraries/kde-frameworks/kconfig.nix
+++ b/pkgs/development/libraries/kde-frameworks/kconfig.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
   qttools,
@@ -11,7 +12,10 @@ mkDerivation {
     "out"
     "dev"
   ];
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [ qttools ];
   propagatedBuildInputs = [ qtbase ];
 }
diff --git a/pkgs/development/libraries/kde-frameworks/kconfigwidgets.nix b/pkgs/development/libraries/kde-frameworks/kconfigwidgets.nix
index 6f3c7717360d..6a138df9ea85 100644
--- a/pkgs/development/libraries/kde-frameworks/kconfigwidgets.nix
+++ b/pkgs/development/libraries/kde-frameworks/kconfigwidgets.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kauth,
   kcodecs,
@@ -15,6 +16,7 @@
 mkDerivation {
   pname = "kconfigwidgets";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     kdoctools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/kcoreaddons.nix b/pkgs/development/libraries/kde-frameworks/kcoreaddons.nix
index f931a5e4f31e..dfb8c80474be 100644
--- a/pkgs/development/libraries/kde-frameworks/kcoreaddons.nix
+++ b/pkgs/development/libraries/kde-frameworks/kcoreaddons.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
   qttools,
@@ -8,7 +9,10 @@
 
 mkDerivation {
   pname = "kcoreaddons";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     qttools
     shared-mime-info
diff --git a/pkgs/development/libraries/kde-frameworks/kcrash.nix b/pkgs/development/libraries/kde-frameworks/kcrash.nix
index 50b258af73b1..cec7b33620e8 100644
--- a/pkgs/development/libraries/kde-frameworks/kcrash.nix
+++ b/pkgs/development/libraries/kde-frameworks/kcrash.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kcoreaddons,
   kwindowsystem,
@@ -9,7 +10,10 @@
 
 mkDerivation {
   pname = "kcrash";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     kcoreaddons
     kwindowsystem
diff --git a/pkgs/development/libraries/kde-frameworks/kdbusaddons.nix b/pkgs/development/libraries/kde-frameworks/kdbusaddons.nix
index eeb10affd913..f06b3f69910e 100644
--- a/pkgs/development/libraries/kde-frameworks/kdbusaddons.nix
+++ b/pkgs/development/libraries/kde-frameworks/kdbusaddons.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
   qttools,
@@ -8,7 +9,10 @@
 
 mkDerivation {
   pname = "kdbusaddons";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     qttools
     qtx11extras
diff --git a/pkgs/development/libraries/kde-frameworks/kdeclarative.nix b/pkgs/development/libraries/kde-frameworks/kdeclarative.nix
deleted file mode 100644
index 923252690089..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kdeclarative.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  libepoxy,
-  kconfig,
-  kglobalaccel,
-  kguiaddons,
-  ki18n,
-  kiconthemes,
-  kio,
-  kpackage,
-  kwidgetsaddons,
-  kwindowsystem,
-  qtdeclarative,
-}:
-
-mkDerivation {
-  pname = "kdeclarative";
-  nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [
-    libepoxy
-    kglobalaccel
-    kguiaddons
-    ki18n
-    kiconthemes
-    kio
-    kwidgetsaddons
-    kwindowsystem
-  ];
-  propagatedBuildInputs = [
-    kconfig
-    kpackage
-    qtdeclarative
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kded.nix b/pkgs/development/libraries/kde-frameworks/kded.nix
index 8d35628ff2ae..d084bdbdebc3 100644
--- a/pkgs/development/libraries/kde-frameworks/kded.nix
+++ b/pkgs/development/libraries/kde-frameworks/kded.nix
@@ -3,6 +3,7 @@
   lib,
   propagate,
   wrapGAppsHook3,
+  cmake,
   extra-cmake-modules,
   kdoctools,
   gsettings-desktop-schemas,
@@ -17,6 +18,7 @@
 mkDerivation {
   pname = "kded";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     kdoctools
     wrapGAppsHook3
diff --git a/pkgs/development/libraries/kde-frameworks/kdelibs4support/default.nix b/pkgs/development/libraries/kde-frameworks/kdelibs4support/default.nix
deleted file mode 100644
index 50d2b42978f7..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kdelibs4support/default.nix
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  mkDerivation,
-  docbook_xml_dtd_45,
-  extra-cmake-modules,
-  kdoctools,
-  kauth,
-  karchive,
-  kcompletion,
-  kconfig,
-  kconfigwidgets,
-  kcoreaddons,
-  kcrash,
-  kdbusaddons,
-  kded,
-  kdesignerplugin,
-  kemoticons,
-  kglobalaccel,
-  kguiaddons,
-  ki18n,
-  kiconthemes,
-  kio,
-  kitemmodels,
-  kinit,
-  knotifications,
-  kparts,
-  kservice,
-  ktextwidgets,
-  kunitconversion,
-  kwidgetsaddons,
-  kwindowsystem,
-  kxmlgui,
-  networkmanager,
-  qtbase,
-  qtsvg,
-  qttools,
-  qtx11extras,
-  libsm,
-}:
-
-mkDerivation {
-  pname = "kdelibs4support";
-  patches = [
-    ./nix-kde-include-dir.patch
-  ];
-  setupHook = ./setup-hook.sh;
-  nativeBuildInputs = [
-    extra-cmake-modules
-    qttools
-  ];
-  propagatedNativeBuildInputs = [ kdoctools ];
-  buildInputs = [
-    kcompletion
-    kconfig
-    kded
-    kglobalaccel
-    ki18n
-    kio
-    kservice
-    kwidgetsaddons
-    kxmlgui
-    networkmanager
-    qtsvg
-    qtx11extras
-    libsm
-  ];
-  propagatedBuildInputs = [
-    kauth
-    karchive
-    kconfigwidgets
-    kcoreaddons
-    kcrash
-    kdbusaddons
-    kdesignerplugin
-    kemoticons
-    kguiaddons
-    kiconthemes
-    kitemmodels
-    kinit
-    knotifications
-    kparts
-    ktextwidgets
-    kunitconversion
-    kwindowsystem
-    qtbase
-  ];
-  cmakeFlags = [
-    "-DDocBookXML4_DTD_DIR=${docbook_xml_dtd_45}/xml/dtd/docbook"
-    "-DDocBookXML4_DTD_VERSION=4.5"
-  ];
-  outputs = [
-    "out"
-    "dev"
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kdelibs4support/nix-kde-include-dir.patch b/pkgs/development/libraries/kde-frameworks/kdelibs4support/nix-kde-include-dir.patch
deleted file mode 100644
index eabb70254483..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kdelibs4support/nix-kde-include-dir.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-Index: kdelibs4support-5.18.0/src/kdecore/kstandarddirs.cpp
-===================================================================
---- kdelibs4support-5.18.0.orig/src/kdecore/kstandarddirs.cpp
-+++ kdelibs4support-5.18.0/src/kdecore/kstandarddirs.cpp
-@@ -292,7 +292,7 @@ static QString relativeInstallPath(const
-             return QFile::decodeName(ICON_INSTALL_DIR "/");
-         }
-         if (strcmp("include", type) == 0) {
--            return QFile::decodeName(INCLUDE_INSTALL_DIR "/");
-+            return QFile::decodeName(qgetenv("NIX_KDE_INCLUDE_DIR"));
-         }
-         break;
-     case 'l':
diff --git a/pkgs/development/libraries/kde-frameworks/kdelibs4support/setup-hook.sh b/pkgs/development/libraries/kde-frameworks/kdelibs4support/setup-hook.sh
deleted file mode 100644
index 21ac2e83b5da..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kdelibs4support/setup-hook.sh
+++ /dev/null
@@ -1 +0,0 @@
-export NIX_KDE_INCLUDE_DIR="@dev@/include/"  # trailing slash is required!
diff --git a/pkgs/development/libraries/kde-frameworks/kdesignerplugin.nix b/pkgs/development/libraries/kde-frameworks/kdesignerplugin.nix
deleted file mode 100644
index 9a81d0c758e1..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kdesignerplugin.nix
+++ /dev/null
@@ -1,41 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  kdoctools,
-  kcompletion,
-  kconfig,
-  kconfigwidgets,
-  kcoreaddons,
-  kiconthemes,
-  kio,
-  kitemviews,
-  kplotting,
-  ktextwidgets,
-  kwidgetsaddons,
-  kxmlgui,
-  qttools,
-  sonnet,
-}:
-
-mkDerivation {
-  pname = "kdesignerplugin";
-  nativeBuildInputs = [
-    extra-cmake-modules
-    kdoctools
-  ];
-  buildInputs = [
-    kcompletion
-    kconfig
-    kconfigwidgets
-    kcoreaddons
-    kiconthemes
-    kio
-    kitemviews
-    kplotting
-    ktextwidgets
-    kwidgetsaddons
-    kxmlgui
-    sonnet
-  ];
-  propagatedBuildInputs = [ qttools ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kdnssd.nix b/pkgs/development/libraries/kde-frameworks/kdnssd.nix
index 081624f35111..4478be2d3e8d 100644
--- a/pkgs/development/libraries/kde-frameworks/kdnssd.nix
+++ b/pkgs/development/libraries/kde-frameworks/kdnssd.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   avahi,
   qtbase,
@@ -8,7 +9,10 @@
 
 mkDerivation {
   pname = "kdnssd";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     avahi
     qttools
diff --git a/pkgs/development/libraries/kde-frameworks/kdoctools/default.nix b/pkgs/development/libraries/kde-frameworks/kdoctools/default.nix
index 377a102c8a57..fd708d7d735a 100644
--- a/pkgs/development/libraries/kde-frameworks/kdoctools/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kdoctools/default.nix
@@ -3,6 +3,7 @@
   lib,
   stdenv,
   fetchpatch,
+  cmake,
   extra-cmake-modules,
   docbook_xml_dtd_45,
   docbook_xsl_ns,
@@ -16,6 +17,7 @@
 mkDerivation {
   pname = "kdoctools";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     # The build system insists on having native Perl.
     perl
diff --git a/pkgs/development/libraries/kde-frameworks/kemoticons.nix b/pkgs/development/libraries/kde-frameworks/kemoticons.nix
deleted file mode 100644
index 27f236df2085..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kemoticons.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  karchive,
-  kcoreaddons,
-  kservice,
-  qtbase,
-}:
-
-mkDerivation {
-  pname = "kemoticons";
-  nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [
-    karchive
-    kcoreaddons
-  ];
-  propagatedBuildInputs = [
-    kservice
-    qtbase
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kglobalaccel.nix b/pkgs/development/libraries/kde-frameworks/kglobalaccel.nix
index 766bc3dec3ed..8e5e2d4a78ba 100644
--- a/pkgs/development/libraries/kde-frameworks/kglobalaccel.nix
+++ b/pkgs/development/libraries/kde-frameworks/kglobalaccel.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kconfig,
   kcoreaddons,
@@ -15,7 +16,10 @@
 
 mkDerivation {
   pname = "kglobalaccel";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     kconfig
     kcoreaddons
diff --git a/pkgs/development/libraries/kde-frameworks/kguiaddons.nix b/pkgs/development/libraries/kde-frameworks/kguiaddons.nix
index 26f5dff9eff0..4619dea4f081 100644
--- a/pkgs/development/libraries/kde-frameworks/kguiaddons.nix
+++ b/pkgs/development/libraries/kde-frameworks/kguiaddons.nix
@@ -2,6 +2,8 @@
   lib,
   stdenv,
   mkDerivation,
+  cmake,
+  pkg-config,
   extra-cmake-modules,
   wayland-scanner,
   qtbase,
@@ -14,6 +16,8 @@ mkDerivation {
   pname = "kguiaddons";
 
   nativeBuildInputs = [
+    cmake
+    pkg-config
     extra-cmake-modules
   ]
   ++ lib.optionals stdenv.hostPlatform.isLinux [
diff --git a/pkgs/development/libraries/kde-frameworks/ki18n.nix b/pkgs/development/libraries/kde-frameworks/ki18n.nix
index 5c14db74ef1b..17dfd6e5a8d7 100644
--- a/pkgs/development/libraries/kde-frameworks/ki18n.nix
+++ b/pkgs/development/libraries/kde-frameworks/ki18n.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   gettext,
   python3,
@@ -9,7 +10,10 @@
 
 mkDerivation {
   pname = "ki18n";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   propagatedNativeBuildInputs = [
     gettext
     python3
diff --git a/pkgs/development/libraries/kde-frameworks/kiconthemes/default.nix b/pkgs/development/libraries/kde-frameworks/kiconthemes/default.nix
index 69a0ab745610..a1470e6cf69a 100644
--- a/pkgs/development/libraries/kde-frameworks/kiconthemes/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kiconthemes/default.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   breeze-icons,
   karchive,
@@ -17,7 +18,10 @@ mkDerivation {
   patches = [
     ./default-theme-breeze.patch
   ];
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     breeze-icons
     karchive
diff --git a/pkgs/development/libraries/kde-frameworks/kidletime.nix b/pkgs/development/libraries/kde-frameworks/kidletime.nix
deleted file mode 100644
index 34667dbd582a..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kidletime.nix
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  wayland-scanner,
-  qtbase,
-  qtx11extras,
-  wayland,
-  wayland-protocols,
-  plasma-wayland-protocols,
-}:
-
-mkDerivation {
-  pname = "kidletime";
-  nativeBuildInputs = [
-    extra-cmake-modules
-    wayland-scanner
-  ];
-  buildInputs = [
-    qtx11extras
-    wayland
-    wayland-protocols
-    plasma-wayland-protocols
-  ];
-  propagatedBuildInputs = [ qtbase ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kinit/0002-start_kdeinit-path.patch b/pkgs/development/libraries/kde-frameworks/kinit/0002-start_kdeinit-path.patch
deleted file mode 100644
index f9c019c2ae2a..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kinit/0002-start_kdeinit-path.patch
+++ /dev/null
@@ -1,25 +0,0 @@
-From 129cd0ae1e983adc10dbe84e87bcc6f31cb13db8 Mon Sep 17 00:00:00 2001
-From: Thomas Tuegel <ttuegel@mailbox.org>
-Date: Sun, 16 Feb 2020 14:23:44 -0600
-Subject: [PATCH 2/4] start_kdeinit-path
-
----
- src/start_kdeinit/start_kdeinit_wrapper.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/start_kdeinit/start_kdeinit_wrapper.c b/src/start_kdeinit/start_kdeinit_wrapper.c
-index 891f50c..ef664ad 100644
---- a/src/start_kdeinit/start_kdeinit_wrapper.c
-+++ b/src/start_kdeinit/start_kdeinit_wrapper.c
-@@ -11,7 +11,7 @@
- #include <string.h>
- #include <unistd.h>
- 
--#define EXECUTE KDE_INSTALL_FULL_LIBEXECDIR_KF5 "/start_kdeinit"
-+#define EXECUTE "/run/wrappers/bin/start_kdeinit"
- 
- #if KDEINIT_OOM_PROTECT
- 
--- 
-2.23.1
-
diff --git a/pkgs/development/libraries/kde-frameworks/kinit/0003-kdeinit-extra-libs.patch b/pkgs/development/libraries/kde-frameworks/kinit/0003-kdeinit-extra-libs.patch
deleted file mode 100644
index 499c975a9e2d..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kinit/0003-kdeinit-extra-libs.patch
+++ /dev/null
@@ -1,59 +0,0 @@
-From 4f5d0de7e35744cdbfa9e280ee7e15a54cf21abb Mon Sep 17 00:00:00 2001
-From: Thomas Tuegel <ttuegel@mailbox.org>
-Date: Sun, 16 Feb 2020 14:24:07 -0600
-Subject: [PATCH 3/4] kdeinit-extra-libs
-
----
- src/kdeinit/kinit.cpp | 22 ++++------------------
- 1 file changed, 4 insertions(+), 18 deletions(-)
-
-diff --git a/src/kdeinit/kinit.cpp b/src/kdeinit/kinit.cpp
-index 0801b75..622dd5f 100644
---- a/src/kdeinit/kinit.cpp
-+++ b/src/kdeinit/kinit.cpp
-@@ -96,9 +96,9 @@ static const char *extra_libs[] = {
-     "libKF5Parts.5.dylib",
-     "libKF5Plasma.5.dylib"
- #else
--    "libKF5KIOCore.so.5",
--    "libKF5Parts.so.5",
--    "libKF5Plasma.so.5"
-+    NIXPKGS_KF5_KIOCORE,
-+    NIXPKGS_KF5_PARTS,
-+    NIXPKGS_KF5_PLASMA
- #endif
- };
- #endif
-@@ -1524,20 +1524,6 @@ static int initXconnection()
- }
- #endif
- 
--#ifndef Q_OS_OSX
--// Find a shared lib in the lib dir, e.g. libkio.so.
--// Completely unrelated to plugins.
--static QString findSharedLib(const QString &lib)
--{
--    QString path = QFile::decodeName(CMAKE_INSTALL_PREFIX "/" KDE_INSTALL_LIBDIR "/") + lib;
--    if (QFile::exists(path)) {
--        return path;
--    }
--    // We could also look in LD_LIBRARY_PATH, but really, who installs the main libs in different prefixes?
--    return QString();
--}
--#endif
--
- extern "C" {
- 
-     static void secondary_child_handler(int)
-@@ -1679,7 +1665,7 @@ int main(int argc, char **argv)
- #if defined(Q_OS_UNIX) && !defined(Q_OS_OSX)
-     if (!d.suicide && qEnvironmentVariableIsEmpty("KDE_IS_PRELINKED")) {
-         for (const char *extra_lib : extra_libs) {
--            const QString extra = findSharedLib(QString::fromLatin1(extra_lib));
-+            const QString extra = QString::fromLatin1(extra_lib);
-             if (!extra.isEmpty()) {
-                 QLibrary l(extra);
-                 l.setLoadHints(QLibrary::ExportExternalSymbolsHint);
--- 
-2.23.1
-
diff --git a/pkgs/development/libraries/kde-frameworks/kinit/0004-start_kdeinit-environ-hard-limit.patch b/pkgs/development/libraries/kde-frameworks/kinit/0004-start_kdeinit-environ-hard-limit.patch
deleted file mode 100644
index 2996342deadb..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kinit/0004-start_kdeinit-environ-hard-limit.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-From 41e94983dcfbc1667f1b18c5b566aa5c5975edcb Mon Sep 17 00:00:00 2001
-From: Thomas Tuegel <ttuegel@mailbox.org>
-Date: Mon, 17 Feb 2020 04:45:03 -0600
-Subject: [PATCH 4/4] start_kdeinit-environ-hard-limit
-
----
- src/start_kdeinit/start_kdeinit.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
-diff --git a/src/start_kdeinit/start_kdeinit.c b/src/start_kdeinit/start_kdeinit.c
-index f2db3e9..4ff2602 100644
---- a/src/start_kdeinit/start_kdeinit.c
-+++ b/src/start_kdeinit/start_kdeinit.c
-@@ -148,7 +148,11 @@ int main(int argc, char **argv)
-                         ++i) {
-                     unsigned len;
-                     if (read(0, &len, sizeof(unsigned)) == sizeof(unsigned)
--                            && len && len < (1 << 12)) {
-+                            && len) {
-+                        if (len >= (1 << 20)) {
-+                            fprintf(stderr, "%s: exceeded environment length limit", argv[0]);
-+                            return 1;
-+                        }
-                         env[ i ] = malloc(len + 1);
-                         if ((unsigned) read(0, env[ i ], len) == len) {
-                             env[ i ][ len ] = '\0';
--- 
-2.23.1
-
diff --git a/pkgs/development/libraries/kde-frameworks/kinit/default.nix b/pkgs/development/libraries/kde-frameworks/kinit/default.nix
deleted file mode 100644
index 533af32e64bb..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kinit/default.nix
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  mkDerivation,
-  lib,
-  stdenv,
-  writeScript,
-  extra-cmake-modules,
-  kdoctools,
-  kconfig,
-  kcrash,
-  ki18n,
-  kio,
-  kparts,
-  kservice,
-  kwindowsystem,
-  plasma-framework,
-}:
-
-let
-  inherit (lib) getLib;
-in
-
-mkDerivation {
-  pname = "kinit";
-  outputs = [
-    "out"
-    "dev"
-  ];
-  nativeBuildInputs = [
-    extra-cmake-modules
-    kdoctools
-  ];
-  buildInputs = [
-    kconfig
-    kcrash
-    ki18n
-    kio
-    kservice
-    kwindowsystem
-  ];
-  patches = [
-    ./0002-start_kdeinit-path.patch
-    ./0003-kdeinit-extra-libs.patch
-    ./0004-start_kdeinit-environ-hard-limit.patch
-  ];
-  env.CXXFLAGS = toString (
-    [
-      ''-DNIXPKGS_KF5_KIOCORE=\"${getLib kio}/lib/libKF5KIOCore.so.5\"''
-      ''-DNIXPKGS_KF5_PARTS=\"${getLib kparts}/lib/libKF5Parts.so.5\"''
-    ]
-    ++ lib.optionals stdenv.hostPlatform.isLinux [
-      ''-DNIXPKGS_KF5_PLASMA=\"${getLib plasma-framework}/lib/libKF5Plasma.so.5\"''
-    ]
-  );
-  setupHook = writeScript "setup-hook.sh" ''
-    kinitFixupOutputHook() {
-        if [ $prefix != ''${!outputBin} ] && [ -d $prefix/lib ]; then
-            mkdir -p ''${!outputBin}/lib
-            find $prefix/lib -maxdepth 1 -name 'libkdeinit5_*.so' -exec ln -s \{\} ''${!outputBin}/lib \;
-            rmdir --ignore-fail-on-non-empty ''${!outputBin}/lib
-        fi
-    }
-
-    fixupOutputHooks+=(kinitFixupOutputHook)
-  '';
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kio/default.nix b/pkgs/development/libraries/kde-frameworks/kio/default.nix
index 2728ac681f35..8da48bc568c7 100644
--- a/pkgs/development/libraries/kde-frameworks/kio/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kio/default.nix
@@ -2,6 +2,7 @@
   stdenv,
   lib,
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kdoctools,
   qttools,
@@ -38,6 +39,7 @@
 mkDerivation {
   pname = "kio";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     kdoctools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/kirigami2.nix b/pkgs/development/libraries/kde-frameworks/kirigami2.nix
index 0f56f7c95365..54ed41bd834a 100644
--- a/pkgs/development/libraries/kde-frameworks/kirigami2.nix
+++ b/pkgs/development/libraries/kde-frameworks/kirigami2.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
   qtquickcontrols2,
@@ -10,6 +11,7 @@
 mkDerivation {
   pname = "kirigami2";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     qttools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/kitemmodels.nix b/pkgs/development/libraries/kde-frameworks/kitemmodels.nix
deleted file mode 100644
index 4078944be08a..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kitemmodels.nix
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  qtbase,
-}:
-
-mkDerivation {
-  pname = "kitemmodels";
-  nativeBuildInputs = [ extra-cmake-modules ];
-  propagatedBuildInputs = [ qtbase ];
-  outputs = [
-    "out"
-    "dev"
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kitemviews.nix b/pkgs/development/libraries/kde-frameworks/kitemviews.nix
index 526c88c5cb59..81df6bb30535 100644
--- a/pkgs/development/libraries/kde-frameworks/kitemviews.nix
+++ b/pkgs/development/libraries/kde-frameworks/kitemviews.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
   qttools,
@@ -7,7 +8,10 @@
 
 mkDerivation {
   pname = "kitemviews";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [ qttools ];
   propagatedBuildInputs = [ qtbase ];
   outputs = [
diff --git a/pkgs/development/libraries/kde-frameworks/kjobwidgets.nix b/pkgs/development/libraries/kde-frameworks/kjobwidgets.nix
index 9be6428824db..a478c6279cfc 100644
--- a/pkgs/development/libraries/kde-frameworks/kjobwidgets.nix
+++ b/pkgs/development/libraries/kde-frameworks/kjobwidgets.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qttools,
   kcoreaddons,
@@ -10,6 +11,7 @@
 mkDerivation {
   pname = "kjobwidgets";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     qttools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/knewstuff/default.nix b/pkgs/development/libraries/kde-frameworks/knewstuff/default.nix
index cfc59cbf1a37..c0749c0536b8 100644
--- a/pkgs/development/libraries/kde-frameworks/knewstuff/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/knewstuff/default.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   attica,
   karchive,
@@ -23,7 +24,10 @@
 
 mkDerivation {
   pname = "knewstuff";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     karchive
     kcompletion
diff --git a/pkgs/development/libraries/kde-frameworks/knotifications.nix b/pkgs/development/libraries/kde-frameworks/knotifications.nix
index 4aba212ab8e7..44b94f0c53ae 100644
--- a/pkgs/development/libraries/kde-frameworks/knotifications.nix
+++ b/pkgs/development/libraries/kde-frameworks/knotifications.nix
@@ -2,6 +2,7 @@
   mkDerivation,
   lib,
   stdenv,
+  cmake,
   extra-cmake-modules,
   kcodecs,
   kconfig,
@@ -17,6 +18,7 @@
 mkDerivation {
   pname = "knotifications";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     qttools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/knotifyconfig.nix b/pkgs/development/libraries/kde-frameworks/knotifyconfig.nix
deleted file mode 100644
index 1677ada272cd..000000000000
--- a/pkgs/development/libraries/kde-frameworks/knotifyconfig.nix
+++ /dev/null
@@ -1,27 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  kcompletion,
-  kconfig,
-  ki18n,
-  kio,
-  phonon,
-  qtbase,
-}:
-
-mkDerivation {
-  pname = "knotifyconfig";
-  nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [
-    kcompletion
-    kconfig
-    ki18n
-    kio
-    phonon
-  ];
-  propagatedBuildInputs = [ qtbase ];
-  outputs = [
-    "out"
-    "dev"
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kpackage/default.nix b/pkgs/development/libraries/kde-frameworks/kpackage/default.nix
index 282ddbb3e772..68480da4351a 100644
--- a/pkgs/development/libraries/kde-frameworks/kpackage/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kpackage/default.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kdoctools,
   karchive,
@@ -12,6 +13,7 @@
 mkDerivation {
   pname = "kpackage";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     kdoctools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/kparts.nix b/pkgs/development/libraries/kde-frameworks/kparts.nix
deleted file mode 100644
index b3f894663537..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kparts.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  kconfig,
-  kcoreaddons,
-  ki18n,
-  kiconthemes,
-  kio,
-  kjobwidgets,
-  knotifications,
-  kservice,
-  ktextwidgets,
-  kwidgetsaddons,
-  kxmlgui,
-}:
-
-mkDerivation {
-  pname = "kparts";
-  nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [
-    kconfig
-    kcoreaddons
-    ki18n
-    kiconthemes
-    kjobwidgets
-    knotifications
-    kservice
-    kwidgetsaddons
-  ];
-  propagatedBuildInputs = [
-    kio
-    ktextwidgets
-    kxmlgui
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kplotting.nix b/pkgs/development/libraries/kde-frameworks/kplotting.nix
deleted file mode 100644
index d2d2b76e1121..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kplotting.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  qttools,
-  qtbase,
-}:
-
-mkDerivation {
-  pname = "kplotting";
-  nativeBuildInputs = [ extra-cmake-modules ];
-  propagatedBuildInputs = [
-    qtbase
-    qttools
-  ];
-  outputs = [
-    "out"
-    "dev"
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/krunner.nix b/pkgs/development/libraries/kde-frameworks/krunner.nix
index e819abe4be29..876067422e1c 100644
--- a/pkgs/development/libraries/kde-frameworks/krunner.nix
+++ b/pkgs/development/libraries/kde-frameworks/krunner.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kconfig,
   kcoreaddons,
@@ -17,7 +18,10 @@
 let
   self = mkDerivation {
     pname = "krunner";
-    nativeBuildInputs = [ extra-cmake-modules ];
+    nativeBuildInputs = [
+      cmake
+      extra-cmake-modules
+    ];
     buildInputs = [
       kconfig
       kcoreaddons
diff --git a/pkgs/development/libraries/kde-frameworks/kservice/default.nix b/pkgs/development/libraries/kde-frameworks/kservice/default.nix
index 7466e789a660..bc716b1f9411 100644
--- a/pkgs/development/libraries/kde-frameworks/kservice/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kservice/default.nix
@@ -1,6 +1,7 @@
 {
   mkDerivation,
   bison,
+  cmake,
   extra-cmake-modules,
   flex,
   kconfig,
@@ -17,6 +18,7 @@
 mkDerivation {
   pname = "kservice";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     kdoctools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/ktextwidgets.nix b/pkgs/development/libraries/kde-frameworks/ktextwidgets.nix
index d66ce937972e..4ed3e3527403 100644
--- a/pkgs/development/libraries/kde-frameworks/ktextwidgets.nix
+++ b/pkgs/development/libraries/kde-frameworks/ktextwidgets.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qttools,
   kcompletion,
@@ -15,7 +16,10 @@
 
 mkDerivation {
   pname = "ktextwidgets";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     kcompletion
     kconfig
diff --git a/pkgs/development/libraries/kde-frameworks/kunitconversion.nix b/pkgs/development/libraries/kde-frameworks/kunitconversion.nix
deleted file mode 100644
index edd57f03890a..000000000000
--- a/pkgs/development/libraries/kde-frameworks/kunitconversion.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  ki18n,
-  qtbase,
-}:
-
-mkDerivation {
-  pname = "kunitconversion";
-  nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [
-    ki18n
-    qtbase
-  ];
-  outputs = [
-    "out"
-    "dev"
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/kwallet.nix b/pkgs/development/libraries/kde-frameworks/kwallet.nix
index 0999930fa785..137ff4513ff7 100644
--- a/pkgs/development/libraries/kde-frameworks/kwallet.nix
+++ b/pkgs/development/libraries/kde-frameworks/kwallet.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   kdoctools,
   kconfig,
@@ -21,6 +22,7 @@
 mkDerivation {
   pname = "kwallet";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     kdoctools
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/kwayland.nix b/pkgs/development/libraries/kde-frameworks/kwayland.nix
index 4dcbe5391a85..e9f76c10bed2 100644
--- a/pkgs/development/libraries/kde-frameworks/kwayland.nix
+++ b/pkgs/development/libraries/kde-frameworks/kwayland.nix
@@ -1,7 +1,8 @@
 {
   mkDerivation,
-  propagateBin,
   lib,
+  cmake,
+  pkg-config,
   extra-cmake-modules,
   wayland-scanner,
   kdePackages,
@@ -22,6 +23,8 @@ mkDerivation {
   ];
 
   nativeBuildInputs = [
+    cmake
+    pkg-config
     extra-cmake-modules
     wayland-scanner
   ];
@@ -31,6 +34,9 @@ mkDerivation {
     wayland-protocols
   ];
   propagatedBuildInputs = [ qtbase ];
-  setupHook = propagateBin; # XDG_CONFIG_DIRS
+  outputs = [
+    "out"
+    "dev"
+  ];
   meta.platforms = lib.platforms.linux ++ lib.platforms.freebsd;
 }
diff --git a/pkgs/development/libraries/kde-frameworks/kwidgetsaddons.nix b/pkgs/development/libraries/kde-frameworks/kwidgetsaddons.nix
index 6b7c271f3f6b..e4b041011b09 100644
--- a/pkgs/development/libraries/kde-frameworks/kwidgetsaddons.nix
+++ b/pkgs/development/libraries/kde-frameworks/kwidgetsaddons.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
   qttools,
@@ -7,7 +8,10 @@
 
 mkDerivation {
   pname = "kwidgetsaddons";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [ qttools ];
   propagatedBuildInputs = [ qtbase ];
   outputs = [
diff --git a/pkgs/development/libraries/kde-frameworks/kwindowsystem/default.nix b/pkgs/development/libraries/kde-frameworks/kwindowsystem/default.nix
index dd94f7131e7c..59e1e948d4b5 100644
--- a/pkgs/development/libraries/kde-frameworks/kwindowsystem/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/kwindowsystem/default.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   libpthread-stubs,
   libxdmcp,
@@ -10,7 +11,10 @@
 
 mkDerivation {
   pname = "kwindowsystem";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     libpthread-stubs
     libxdmcp
diff --git a/pkgs/development/libraries/kde-frameworks/kxmlgui.nix b/pkgs/development/libraries/kde-frameworks/kxmlgui.nix
index 35d01f5e7d89..e6eb400921b2 100644
--- a/pkgs/development/libraries/kde-frameworks/kxmlgui.nix
+++ b/pkgs/development/libraries/kde-frameworks/kxmlgui.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qttools,
   attica,
@@ -21,7 +22,10 @@ mkDerivation {
     "out"
     "dev"
   ];
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     attica
     kglobalaccel
diff --git a/pkgs/development/libraries/kde-frameworks/plasma-framework.nix b/pkgs/development/libraries/kde-frameworks/plasma-framework.nix
deleted file mode 100644
index a2f8f948a452..000000000000
--- a/pkgs/development/libraries/kde-frameworks/plasma-framework.nix
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  mkDerivation,
-  extra-cmake-modules,
-  kdoctools,
-  kactivities,
-  karchive,
-  kconfig,
-  kconfigwidgets,
-  kcoreaddons,
-  kdbusaddons,
-  kdeclarative,
-  kglobalaccel,
-  kguiaddons,
-  ki18n,
-  kiconthemes,
-  kio,
-  knotifications,
-  kpackage,
-  kservice,
-  kwayland,
-  kwindowsystem,
-  kxmlgui,
-  qtbase,
-  qtdeclarative,
-  qtscript,
-  qtx11extras,
-  kirigami2,
-  qtquickcontrols2,
-}:
-
-mkDerivation {
-  pname = "plasma-framework";
-  nativeBuildInputs = [
-    extra-cmake-modules
-    kdoctools
-  ];
-  buildInputs = [
-    kactivities
-    karchive
-    kconfig
-    kconfigwidgets
-    kcoreaddons
-    kdbusaddons
-    kdeclarative
-    kglobalaccel
-    kguiaddons
-    ki18n
-    kiconthemes
-    kio
-    knotifications
-    kwayland
-    kwindowsystem
-    kxmlgui
-    qtdeclarative
-    qtscript
-    qtx11extras
-    qtquickcontrols2
-  ];
-  propagatedBuildInputs = [
-    kpackage
-    kservice
-    qtbase
-    kirigami2
-  ];
-}
diff --git a/pkgs/development/libraries/kde-frameworks/purpose.nix b/pkgs/development/libraries/kde-frameworks/purpose.nix
index 41de202c3eed..d9cdbdc74ba7 100644
--- a/pkgs/development/libraries/kde-frameworks/purpose.nix
+++ b/pkgs/development/libraries/kde-frameworks/purpose.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   intltool,
   qtbase,
@@ -16,6 +17,7 @@
 mkDerivation {
   pname = "purpose";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     intltool
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/solid/default.nix b/pkgs/development/libraries/kde-frameworks/solid/default.nix
index ddb45ae6aa3f..066f9a9571b2 100644
--- a/pkgs/development/libraries/kde-frameworks/solid/default.nix
+++ b/pkgs/development/libraries/kde-frameworks/solid/default.nix
@@ -3,6 +3,7 @@
   lib,
   stdenv,
   bison,
+  cmake,
   extra-cmake-modules,
   flex,
   media-player-info,
@@ -16,6 +17,7 @@ mkDerivation {
   patches = [ ./fix-search-path.patch ];
   nativeBuildInputs = [
     bison
+    cmake
     extra-cmake-modules
     flex
   ]
diff --git a/pkgs/development/libraries/kde-frameworks/sonnet.nix b/pkgs/development/libraries/kde-frameworks/sonnet.nix
index 351972ba5bb5..cb970d563a1f 100644
--- a/pkgs/development/libraries/kde-frameworks/sonnet.nix
+++ b/pkgs/development/libraries/kde-frameworks/sonnet.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   aspell,
   hunspell,
@@ -9,7 +10,10 @@
 
 mkDerivation {
   pname = "sonnet";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     aspell
     hunspell
diff --git a/pkgs/development/libraries/kde-frameworks/syndication.nix b/pkgs/development/libraries/kde-frameworks/syndication.nix
index 0b92afc313e2..d0ffb5c27e2f 100644
--- a/pkgs/development/libraries/kde-frameworks/syndication.nix
+++ b/pkgs/development/libraries/kde-frameworks/syndication.nix
@@ -1,6 +1,7 @@
 {
   mkDerivation,
   lib,
+  cmake,
   extra-cmake-modules,
   kcodecs,
 }:
@@ -8,6 +9,13 @@
 mkDerivation {
   pname = "syndication";
   meta.maintainers = [ lib.maintainers.bkchr ];
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [ kcodecs ];
+  outputs = [
+    "out"
+    "dev"
+  ];
 }
diff --git a/pkgs/development/libraries/kde-frameworks/syntax-highlighting.nix b/pkgs/development/libraries/kde-frameworks/syntax-highlighting.nix
index 238087a11d0d..eccd593cf28c 100644
--- a/pkgs/development/libraries/kde-frameworks/syntax-highlighting.nix
+++ b/pkgs/development/libraries/kde-frameworks/syntax-highlighting.nix
@@ -1,5 +1,6 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   perl,
   qtbase,
@@ -9,6 +10,7 @@
 mkDerivation {
   pname = "syntax-highlighting";
   nativeBuildInputs = [
+    cmake
     extra-cmake-modules
     perl
   ];
diff --git a/pkgs/development/libraries/kde-frameworks/threadweaver.nix b/pkgs/development/libraries/kde-frameworks/threadweaver.nix
index fe2e6ce78b38..d8593d70ca38 100644
--- a/pkgs/development/libraries/kde-frameworks/threadweaver.nix
+++ b/pkgs/development/libraries/kde-frameworks/threadweaver.nix
@@ -1,12 +1,16 @@
 {
   mkDerivation,
+  cmake,
   extra-cmake-modules,
   qtbase,
 }:
 
 mkDerivation {
   pname = "threadweaver";
-  nativeBuildInputs = [ extra-cmake-modules ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   propagatedBuildInputs = [ qtbase ];
   outputs = [
     "out"
diff --git a/pkgs/development/libraries/kdiagram/cmake-minimum-required.patch b/pkgs/development/libraries/kdiagram/cmake-minimum-required.patch
deleted file mode 100644
index e41de5e30ac7..000000000000
--- a/pkgs/development/libraries/kdiagram/cmake-minimum-required.patch
+++ /dev/null
@@ -1,34 +0,0 @@
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 12dbdbb..22495bb 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -1,4 +1,4 @@
--cmake_minimum_required(VERSION 2.8.12)
-+cmake_minimum_required(VERSION 3.10)
- 
- project( kdiagram )
- 
-diff --git a/src/KChart/CMakeLists.txt b/src/KChart/CMakeLists.txt
-index 676b71f..a9a2928 100644
---- a/src/KChart/CMakeLists.txt
-+++ b/src/KChart/CMakeLists.txt
-@@ -359,6 +359,7 @@ install(EXPORT KChartTargets
- ecm_generate_pri_file(
-     BASE_NAME KChart
-     LIB_NAME KChart
-+    VERSION ${KCHARTLIB_VERSION}
-     DEPS "widgets svg"
-     FILENAME_VAR PRI_FILENAME
-     INCLUDE_INSTALL_DIR ${INCLUDE_INSTALL_DIR}/KChart
-diff --git a/src/KGantt/CMakeLists.txt b/src/KGantt/CMakeLists.txt
-index 107d762..5cbb254 100644
---- a/src/KGantt/CMakeLists.txt
-+++ b/src/KGantt/CMakeLists.txt
-@@ -183,6 +183,7 @@ install(EXPORT KGanttTargets
- ecm_generate_pri_file(
-     BASE_NAME KGantt
-     LIB_NAME KGantt
-+    VERSION ${KGANTTLIB_VERSION}
-     DEPS "widgets printsupport"
-     FILENAME_VAR PRI_FILENAME
-     INCLUDE_INSTALL_DIR ${INCLUDE_INSTALL_DIR}/KGantt
diff --git a/pkgs/development/libraries/kdiagram/default.nix b/pkgs/development/libraries/kdiagram/default.nix
deleted file mode 100644
index e280ffbc21ac..000000000000
--- a/pkgs/development/libraries/kdiagram/default.nix
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  mkDerivation,
-  fetchFromGitLab,
-  lib,
-  extra-cmake-modules,
-  qttools,
-  qtbase,
-  qtsvg,
-}:
-
-mkDerivation rec {
-  pname = "kdiagram";
-  version = "2.8.0";
-  src = fetchFromGitLab {
-    domain = "invent.kde.org";
-    owner = "graphics";
-    repo = "kdiagram";
-    rev = "v${version}";
-    sha256 = "sha256-Se131GZE12wqdfN/V4id1pphUvteSrmMaKZ0+lqg1z8=";
-  };
-  patches = [
-    ./cmake-minimum-required.patch
-  ];
-  nativeBuildInputs = [
-    extra-cmake-modules
-    qttools
-  ];
-  propagatedBuildInputs = [
-    qtbase
-    qtsvg
-  ];
-  meta = {
-    description = "Libraries for creating business diagrams";
-    license = lib.licenses.gpl2;
-    platforms = qtbase.meta.platforms;
-    maintainers = [ lib.maintainers.ttuegel ];
-  };
-}
diff --git a/pkgs/development/libraries/kirigami-addons/default.nix b/pkgs/development/libraries/kirigami-addons/default.nix
deleted file mode 100644
index c3e21c328691..000000000000
--- a/pkgs/development/libraries/kirigami-addons/default.nix
+++ /dev/null
@@ -1,44 +0,0 @@
-{
-  lib,
-  mkDerivation,
-  fetchFromGitLab,
-
-  cmake,
-  extra-cmake-modules,
-
-  ki18n,
-  kirigami2,
-  qtquickcontrols2,
-}:
-
-mkDerivation rec {
-  pname = "kirigami-addons";
-  version = "0.11.0";
-
-  src = fetchFromGitLab {
-    domain = "invent.kde.org";
-    owner = "libraries";
-    repo = "kirigami-addons";
-    rev = "v${version}";
-    hash = "sha256-KTkEfGmQf9kj+9e/rJM7jd/4BqubDLu5/oLkX88uENA=";
-  };
-
-  nativeBuildInputs = [
-    cmake
-    extra-cmake-modules
-  ];
-
-  buildInputs = [
-    ki18n
-    kirigami2
-    qtquickcontrols2
-  ];
-
-  meta = {
-    description = "Add-ons for the Kirigami framework";
-    homepage = "https://invent.kde.org/libraries/kirigami-addons";
-    # https://invent.kde.org/libraries/kirigami-addons/-/blob/b197d98fdd079b6fc651949bd198363872d1be23/src/treeview/treeviewplugin.cpp#L1-5
-    license = lib.licenses.lgpl2Plus;
-    maintainers = with lib.maintainers; [ matthiasbeyer ];
-  };
-}
diff --git a/pkgs/development/libraries/kproperty/cmake-minimum-required.patch b/pkgs/development/libraries/kproperty/cmake-minimum-required.patch
deleted file mode 100644
index 9d7143b66a15..000000000000
--- a/pkgs/development/libraries/kproperty/cmake-minimum-required.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 2d589d5..0e1390f 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -1,5 +1,5 @@
- set(KPROPERTY_GENERATE_PRI TRUE)
--cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
-+cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
- find_package(ECM 1.8.0 REQUIRED NO_MODULE)
- set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
- include(SetKPropertyCMakePolicies NO_POLICY_SCOPE)
-diff --git a/cmake/modules/SetKPropertyCMakePolicies.cmake b/cmake/modules/SetKPropertyCMakePolicies.cmake
-index bc28d8a..85370c2 100644
---- a/cmake/modules/SetKPropertyCMakePolicies.cmake
-+++ b/cmake/modules/SetKPropertyCMakePolicies.cmake
-@@ -9,7 +9,7 @@ cmake_policy(SET CMP0053 NEW) # TODO remove, temporary fix for a bug in Qt 5.8's
-                               # "Simplify variable reference and escape sequence evaluation"
- 
- if(POLICY CMP0059) # Don’t treat DEFINITIONS as a built-in directory property.
--    cmake_policy(SET CMP0059 OLD)
-+    cmake_policy(SET CMP0059 NEW)
- endif()
- if(POLICY CMP0063) # Honor visibility properties for all target types (since cmake 3.3)
-     cmake_policy(SET CMP0063 NEW)
diff --git a/pkgs/development/libraries/kproperty/default.nix b/pkgs/development/libraries/kproperty/default.nix
deleted file mode 100644
index 674e40d891dc..000000000000
--- a/pkgs/development/libraries/kproperty/default.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  mkDerivation,
-  lib,
-  fetchurl,
-  extra-cmake-modules,
-  qtbase,
-  kconfig,
-  kcoreaddons,
-  kwidgetsaddons,
-  kguiaddons,
-  qttools,
-}:
-
-mkDerivation rec {
-  pname = "kproperty";
-  version = "3.2.0";
-
-  src = fetchurl {
-    url = "mirror://kde/stable/${pname}/src/${pname}-${version}.tar.xz";
-    sha256 = "1yldfsdamk4dag8dyryjn5n9j2pzi42s79kkafymfnbifhnhrbv7";
-  };
-
-  patches = [
-    ./cmake-minimum-required.patch
-  ];
-
-  nativeBuildInputs = [ extra-cmake-modules ];
-
-  buildInputs = [
-    kconfig
-    kcoreaddons
-    kwidgetsaddons
-    kguiaddons
-    qttools
-  ];
-
-  propagatedBuildInputs = [ qtbase ];
-
-  meta = {
-    description = "Property editing framework with editor widget similar to what is known from Qt Designer";
-    license = lib.licenses.lgpl2;
-    platforms = lib.platforms.linux;
-    maintainers = with lib.maintainers; [ zraexy ];
-  };
-}
diff --git a/pkgs/development/libraries/kquickimageedit/0.3.0.nix b/pkgs/development/libraries/kquickimageedit/0.3.0.nix
deleted file mode 100644
index 95b6094db054..000000000000
--- a/pkgs/development/libraries/kquickimageedit/0.3.0.nix
+++ /dev/null
@@ -1,37 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitLab,
-  extra-cmake-modules,
-  qtbase,
-  qtdeclarative,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "kquickimageeditor";
-  version = "0.3.0";
-
-  src = fetchFromGitLab {
-    domain = "invent.kde.org";
-    owner = "libraries";
-    repo = "kquickimageeditor";
-    rev = "v${version}";
-    sha256 = "sha256-+BByt07HMb4u6j9bVZqkUPvyRaElKvJ2MjKlPakL87E=";
-  };
-
-  nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [
-    qtbase
-    qtdeclarative
-  ];
-  cmakeFlags = [ "-DQT_MAJOR_VERSION=${lib.versions.major qtbase.version}" ];
-  dontWrapQtApps = true;
-
-  meta = {
-    description = "Set of QtQuick components providing basic image editing capabilities";
-    homepage = "https://invent.kde.org/libraries/kquickimageeditor";
-    license = lib.licenses.lgpl21Plus;
-    platforms = lib.platforms.unix;
-    badPlatforms = lib.platforms.darwin;
-  };
-}
diff --git a/pkgs/development/libraries/kuserfeedback/default.nix b/pkgs/development/libraries/kuserfeedback/default.nix
deleted file mode 100644
index f4da50b1fabb..000000000000
--- a/pkgs/development/libraries/kuserfeedback/default.nix
+++ /dev/null
@@ -1,27 +0,0 @@
-{
-  lib,
-  mkDerivation,
-  fetchurl,
-  extra-cmake-modules,
-  qttools,
-}:
-mkDerivation rec {
-  pname = "kuserfeedback";
-  version = "1.3.0";
-
-  src = fetchurl {
-    url = "mirror://kde/stable/${pname}/${pname}-${version}.tar.xz";
-    hash = "sha256-JSMIuCLdRpDqhasWiMmw2lUSl4rGtDX3ell5/B0v/RM=";
-  };
-
-  nativeBuildInputs = [
-    extra-cmake-modules
-    qttools
-  ];
-
-  meta = {
-    license = [ lib.licenses.mit ];
-    maintainers = [ lib.maintainers.k900 ];
-    description = "Framework for collecting user feedback for apps via telemetry and surveys";
-  };
-}
diff --git a/pkgs/development/libraries/libqaccessibilityclient/default.nix b/pkgs/development/libraries/libqaccessibilityclient/default.nix
index b3753dff42e9..d0901b6e5c24 100644
--- a/pkgs/development/libraries/libqaccessibilityclient/default.nix
+++ b/pkgs/development/libraries/libqaccessibilityclient/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     kdePackages.extra-cmake-modules
   ];
   buildInputs = [ qtbase ];
-  cmakeFlags = [ "-DQT_MAJOR_VERSION=${lib.versions.major qtbase.version}" ];
+  cmakeFlags = [ "-DQT_MAJOR_VERSION=6" ];
 
   outputs = [
     "out"
diff --git a/pkgs/development/libraries/maui-core/default.nix b/pkgs/development/libraries/maui-core/default.nix
deleted file mode 100644
index 722ae70fc806..000000000000
--- a/pkgs/development/libraries/maui-core/default.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  lib,
-  mkDerivation,
-  libcanberra,
-  pulseaudio,
-  fetchFromGitHub,
-  cmake,
-  extra-cmake-modules,
-  kio,
-  kidletime,
-}:
-
-mkDerivation rec {
-  pname = "maui-core";
-  version = "0.6.6";
-
-  src = fetchFromGitHub {
-    owner = "Nitrux";
-    repo = "maui-core";
-    tag = "v${version}";
-    sha256 = "sha256-o0Xwh9w0cClMw85FwpQB9CNWoSnzARxs6aGfvCA4BhA=";
-  };
-
-  nativeBuildInputs = [
-    cmake
-    extra-cmake-modules
-  ];
-
-  buildInputs = [
-    kidletime
-    kio
-    libcanberra
-    pulseaudio
-  ];
-
-  meta = {
-    description = "Core libraries to manage the desktop to be shared between Maui Settings and Cask";
-    homepage = "https://github.com/Nitrux/maui-core";
-    # Missing license information https://github.com/Nitrux/maui-core/issues/1
-    license = lib.licenses.unfree;
-    maintainers = with lib.maintainers; [ onny ];
-    platforms = lib.platforms.linux;
-  };
-
-}
diff --git a/pkgs/development/libraries/phonon/backends/gst-plugin-paths.patch b/pkgs/development/libraries/phonon/backends/gst-plugin-paths.patch
deleted file mode 100644
index 39c1b9c0d290..000000000000
--- a/pkgs/development/libraries/phonon/backends/gst-plugin-paths.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-Index: phonon-gstreamer-4.9.0/gstreamer/backend.cpp
-===================================================================
---- phonon-gstreamer-4.9.0.orig/gstreamer/backend.cpp
-+++ phonon-gstreamer-4.9.0/gstreamer/backend.cpp
-@@ -85,6 +85,8 @@ Backend::Backend(QObject *parent, const
-         "--gst-debug-no-color"
-     };
- 
-+    qputenv("GST_PLUGIN_PATH_1_0", GST_PLUGIN_PATH_1_0);
-+
-     int argc = sizeof(args) / sizeof(*args);
-     char **argv = const_cast<char**>(args);
-     GError *err = 0;
diff --git a/pkgs/development/libraries/phonon/backends/gstreamer.nix b/pkgs/development/libraries/phonon/backends/gstreamer.nix
deleted file mode 100644
index 1c7511becab1..000000000000
--- a/pkgs/development/libraries/phonon/backends/gstreamer.nix
+++ /dev/null
@@ -1,85 +0,0 @@
-{
-  stdenv,
-  lib,
-  fetchurl,
-  fetchpatch,
-  cmake,
-  gst_all_1,
-  phonon,
-  pkg-config,
-  extra-cmake-modules,
-  qttools,
-  qtbase,
-  qtx11extras,
-  debug ? false,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "phonon-backend-gstreamer";
-  version = "4.10.0";
-
-  src = fetchurl {
-    url = "mirror://kde/stable/phonon/${pname}/${version}/${pname}-${version}.tar.xz";
-    sha256 = "1wk1ip2w7fkh65zk6rilj314dna0hgsv2xhjmpr5w08xa8sii1y5";
-  };
-
-  patches = [
-    # Hardcode paths to useful plugins so the backend doesn't depend
-    # on system paths being set.
-    ./gst-plugin-paths.patch
-
-    # Work around https://bugs.kde.org/show_bug.cgi?id=445196 until a new release.
-    (fetchpatch {
-      url = "https://invent.kde.org/libraries/phonon-gstreamer/-/commit/bbbb160f30a394655cff9398d17961142388b0f2.patch";
-      sha256 = "sha256-tNBqVt67LNb9SQogS9ol8/xYIZvVSoVUgXQahMfkFh8=";
-    })
-  ];
-
-  dontWrapQtApps = true;
-
-  env.NIX_CFLAGS_COMPILE =
-    let
-      gstPluginPaths = lib.makeSearchPathOutput "lib" "/lib/gstreamer-1.0" (
-        with gst_all_1;
-        [
-          gstreamer
-          gst-plugins-base
-          gst-plugins-good
-          gst-plugins-ugly
-          gst-plugins-bad
-          gst-libav
-        ]
-      );
-    in
-    toString [
-      # This flag should be picked up through pkg-config, but it isn't.
-      "-I${gst_all_1.gstreamer.dev}/lib/gstreamer-1.0/include"
-
-      ''-DGST_PLUGIN_PATH_1_0="${gstPluginPaths}"''
-    ];
-
-  buildInputs = with gst_all_1; [
-    gstreamer
-    gst-plugins-base
-    phonon
-    qtbase
-    qtx11extras
-  ];
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    extra-cmake-modules
-    qttools
-  ];
-
-  cmakeBuildType = if debug then "Debug" else "Release";
-
-  meta = {
-    homepage = "https://phonon.kde.org/";
-    description = "GStreamer backend for Phonon";
-    platforms = lib.platforms.linux;
-    maintainers = with lib.maintainers; [ ttuegel ];
-    license = lib.licenses.lgpl21;
-  };
-}
diff --git a/pkgs/development/libraries/phonon/backends/vlc.nix b/pkgs/development/libraries/phonon/backends/vlc.nix
deleted file mode 100644
index b262d7ce71dc..000000000000
--- a/pkgs/development/libraries/phonon/backends/vlc.nix
+++ /dev/null
@@ -1,53 +0,0 @@
-{
-  stdenv,
-  lib,
-  fetchurl,
-  cmake,
-  phonon,
-  pkg-config,
-  libvlc,
-  extra-cmake-modules,
-  qttools,
-  qtbase,
-  qtx11extras,
-  debug ? false,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "phonon-backend-vlc";
-  version = "0.11.3";
-
-  src = fetchurl {
-    url = "mirror://kde/stable/phonon/${pname}/${version}/${pname}-${version}.tar.xz";
-    sha256 = "sha256-Xmn97MsGDH5rWSTO8uZb7loIrOQScAW5U0TtMHfcY5c=";
-  };
-
-  buildInputs = [
-    phonon
-    libvlc
-    qtbase
-    qtx11extras
-  ];
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    qttools
-    extra-cmake-modules
-  ];
-
-  dontWrapQtApps = true;
-
-  cmakeBuildType = if debug then "Debug" else "Release";
-
-  meta = {
-    homepage = "https://community.kde.org/Phonon";
-    # Dev repo is at https://invent.kde.org/libraries/phonon-vlc
-    description = "GStreamer backend for Phonon";
-    platforms = lib.platforms.linux;
-    license = with lib.licenses; [
-      bsd3
-      lgpl21Plus
-    ];
-  };
-}
diff --git a/pkgs/development/libraries/phonon/default.nix b/pkgs/development/libraries/phonon/default.nix
deleted file mode 100644
index 11b41c039575..000000000000
--- a/pkgs/development/libraries/phonon/default.nix
+++ /dev/null
@@ -1,98 +0,0 @@
-{
-  stdenv,
-  lib,
-  fetchurl,
-  cmake,
-  libGLU,
-  libGL,
-  pkg-config,
-  libpulseaudio,
-  kdePackages,
-  qtbase,
-  qttools,
-  debug ? false,
-}:
-
-let
-  soname = "phonon4qt5";
-  buildsystemdir = "share/cmake/${soname}";
-in
-
-stdenv.mkDerivation rec {
-  pname = "phonon";
-  version = "4.11.1";
-
-  meta = {
-    homepage = "https://community.kde.org/Phonon";
-    description = "Multimedia API for Qt";
-    mainProgram = "phononsettings";
-    license = lib.licenses.lgpl2;
-    platforms = lib.platforms.unix;
-    maintainers = with lib.maintainers; [ ttuegel ];
-  };
-
-  src = fetchurl {
-    url = "mirror://kde/stable/phonon/${version}/phonon-${version}.tar.xz";
-    sha256 = "0bfy8iqmjhlg3ma3iqd3kxjc2zkzpjgashbpf5x17y0dc2i1whxl";
-  };
-
-  buildInputs = [
-    libGLU
-    libGL
-    libpulseaudio
-    qtbase
-    qttools
-  ];
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    kdePackages.extra-cmake-modules
-  ];
-
-  outputs = [
-    "out"
-    "dev"
-  ];
-
-  env.NIX_CFLAGS_COMPILE = toString (
-    [
-      "-fPIC"
-    ]
-    ++ lib.optionals stdenv.cc.isClang [
-      "-Wno-error=enum-constexpr-conversion"
-    ]
-  );
-
-  cmakeBuildType = if debug then "Debug" else "Release";
-
-  dontWrapQtApps = true;
-
-  preConfigure = ''
-    appendToVar cmakeFlags "-DPHONON_QT_MKSPECS_INSTALL_DIR=''${!outputDev}/mkspecs"
-    appendToVar cmakeFlags "-DPHONON_QT_IMPORTS_INSTALL_DIR=''${!outputBin}/$qtQmlPrefix"
-    appendToVar cmakeFlags "-DPHONON_QT_PLUGIN_INSTALL_DIR=''${!outputBin}/$qtPluginPrefix/designer"
-  '';
-
-  postPatch = ''
-    sed -i PhononConfig.cmake.in \
-        -e "/get_filename_component(rootDir/ s/^.*$//" \
-        -e "/^set(PHONON_INCLUDE_DIR/ s|\''${rootDir}/||" \
-        -e "/^set(PHONON_LIBRARY_DIR/ s|\''${rootDir}/||" \
-        -e "/^set(PHONON_BUILDSYSTEM_DIR/ s|\''${rootDir}|''${!outputDev}|"
-
-    sed -i cmake/FindPhononInternal.cmake \
-        -e "/set(INCLUDE_INSTALL_DIR/ c set(INCLUDE_INSTALL_DIR \"''${!outputDev}/include\")"
-
-    sed -i cmake/FindPhononInternal.cmake \
-        -e "/set(PLUGIN_INSTALL_DIR/ c set(PLUGIN_INSTALL_DIR \"$qtPluginPrefix/..\")"
-
-    sed -i CMakeLists.txt \
-        -e "/set(BUILDSYSTEM_INSTALL_DIR/ c set(BUILDSYSTEM_INSTALL_DIR \"''${!outputDev}/${buildsystemdir}\")"
-  '';
-
-  postFixup = ''
-    sed -i "''${!outputDev}/lib/pkgconfig/${soname}.pc" \
-        -e "/^exec_prefix=/ c exec_prefix=''${!outputBin}/bin"
-  '';
-}
diff --git a/pkgs/development/libraries/plasma-wayland-protocols/default.nix b/pkgs/development/libraries/plasma-wayland-protocols/default.nix
deleted file mode 100644
index 9de688a268bf..000000000000
--- a/pkgs/development/libraries/plasma-wayland-protocols/default.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-  mkDerivation,
-  fetchurl,
-  lib,
-  extra-cmake-modules,
-  qtbase,
-}:
-
-mkDerivation rec {
-  pname = "plasma-wayland-protocols";
-  version = "1.18.0";
-
-  src = fetchurl {
-    url = "mirror://kde/stable/${pname}/${pname}-${version}.tar.xz";
-    hash = "sha256-JWdHJnGtXZifiLUbrvndWTU6Xnw/LtfmuYl1XLkAQjM=";
-  };
-
-  nativeBuildInputs = [ extra-cmake-modules ];
-
-  buildInputs = [ qtbase ];
-
-  meta = {
-    description = "Plasma Wayland Protocols";
-    license = lib.licenses.lgpl21Plus;
-    platforms = qtbase.meta.platforms;
-    maintainers = [ lib.maintainers.ttuegel ];
-  };
-}
diff --git a/pkgs/development/libraries/pulseaudio-qt/default.nix b/pkgs/development/libraries/pulseaudio-qt/default.nix
deleted file mode 100644
index 3d1a91c748e5..000000000000
--- a/pkgs/development/libraries/pulseaudio-qt/default.nix
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-  stdenv,
-  lib,
-  fetchurl,
-  cmake,
-  pkg-config,
-  extra-cmake-modules,
-  wrapQtAppsHook,
-  pulseaudio,
-}:
-
-stdenv.mkDerivation (finalAttrs: {
-  pname = "pulseaudio-qt";
-  version = "1.3.0";
-
-  src = fetchurl {
-    url = "mirror://kde/stable/pulseaudio-qt/pulseaudio-qt-${lib.versions.majorMinor finalAttrs.version}.tar.xz";
-    sha256 = "1i4yb0v1mmhih8c2i61hybg6q60qys3pc5wbjb7a0vwl1mihgsxw";
-  };
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    extra-cmake-modules
-    wrapQtAppsHook
-  ];
-
-  buildInputs = [
-    pulseaudio
-  ];
-
-  meta = {
-    description = "Pulseaudio bindings for Qt";
-    homepage = "https://invent.kde.org/libraries/pulseaudio-qt";
-    license = with lib.licenses; [ lgpl2 ];
-    maintainers = with lib.maintainers; [ doronbehar ];
-  };
-})
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index d086129240db..332b66fac6ea 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1041,6 +1041,7 @@ mapAliases {
   krunner-pass = throw "'krunner-pass' has been removed, as it only works on Plasma 5"; # Added 2025-08-30
   krunner-translator = throw "'krunner-translator' has been removed, as it only works on Plasma 5"; # Added 2025-08-30
   ksmoothdock = throw "'ksmoothdock' has been removed, as Plasma 5 has reached end of life."; # Added 2026-05-01
+  ktextaddons = throw "'ktextaddons' has been removed due to outdated KF5 dependencies. A Qt6 version is available at 'kdePackages.ktextaddons'."; # Added 2026-05-01
   kube3d = throw "'kube3d' has been renamed to/replaced by 'k3d'"; # Converted to throw 2025-10-27
   kubei = throw "'kubei' has been renamed to/replaced by 'kubeclarity'"; # Converted to throw 2025-10-27
   kubo-migrator-all-fs-repo-migrations = throw "'kubo-migrator-all-fs-repo-migrations' has been renamed to/replaced by 'kubo-fs-repo-migrations'"; # Converted to throw 2025-10-27
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a8bc68cf7b61..e3c69b428764 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5534,9 +5534,6 @@ with pkgs;
     ];
   };
 
-  # Does not actually depend on Qt 5
-  inherit (plasma5Packages) extra-cmake-modules;
-
   coccinelle = callPackage ../development/tools/misc/coccinelle {
     ocamlPackages = ocaml-ng.ocamlPackages_4_14;
   };
diff --git a/pkgs/top-level/qt5-packages.nix b/pkgs/top-level/qt5-packages.nix
index d5f5a5d3817f..1f4f56170d54 100644
--- a/pkgs/top-level/qt5-packages.nix
+++ b/pkgs/top-level/qt5-packages.nix
@@ -35,7 +35,7 @@ makeScopeWithSplicing' {
           attrs = {
             inherit config;
             inherit libsForQt5;
-            inherit (pkgs) lib fetchurl;
+            inherit (pkgs) lib fetchurl kdePackages;
           };
         in
         (lib.makeOverridable mkFrameworks attrs);
@@ -72,32 +72,18 @@ makeScopeWithSplicing' {
 
         fcitx5-qt = callPackage ../tools/inputmethods/fcitx5/fcitx5-qt.nix { };
 
-        futuresql = callPackage ../development/libraries/futuresql { };
-
         qgpgme = callPackage ../development/libraries/qgpgme { };
 
         grantlee = callPackage ../development/libraries/grantlee/5 { };
 
         herqq = callPackage ../development/libraries/herqq { };
 
-        kdb = callPackage ../development/libraries/kdb { };
-
         kcolorpicker = callPackage ../development/libraries/kcolorpicker { };
 
-        kdiagram = callPackage ../development/libraries/kdiagram { };
-
         kdsoap = callPackage ../development/libraries/kdsoap { };
 
-        kirigami-addons = libsForQt5.callPackage ../development/libraries/kirigami-addons { };
-
         kimageannotator = callPackage ../development/libraries/kimageannotator { };
 
-        kproperty = callPackage ../development/libraries/kproperty { };
-
-        kquickimageedit = callPackage ../development/libraries/kquickimageedit/0.3.0.nix { };
-
-        kuserfeedback = callPackage ../development/libraries/kuserfeedback { };
-
         ldutils = callPackage ../development/libraries/ldutils { };
 
         libcommuni = callPackage ../development/libraries/libcommuni { };
@@ -120,26 +106,14 @@ makeScopeWithSplicing' {
 
         libqtpas = callPackage ../development/compilers/fpc/libqtpas.nix { };
 
-        libqaccessibilityclient = callPackage ../development/libraries/libqaccessibilityclient { };
-
         mapbox-gl-qml = libsForQt5.callPackage ../development/libraries/mapbox-gl-qml { };
 
         maplibre-native-qt = callPackage ../development/libraries/maplibre-native-qt { };
 
-        maui-core = libsForQt5.callPackage ../development/libraries/maui-core { };
-
         mlt = pkgs.mlt.override {
           qt = qt5;
         };
 
-        phonon = callPackage ../development/libraries/phonon { };
-
-        phonon-backend-gstreamer = callPackage ../development/libraries/phonon/backends/gstreamer.nix { };
-
-        phonon-backend-vlc = callPackage ../development/libraries/phonon/backends/vlc.nix { };
-
-        plasma-wayland-protocols = callPackage ../development/libraries/plasma-wayland-protocols { };
-
         polkit-qt = callPackage ../development/libraries/polkit-qt-1 { };
 
         poppler = callPackage ../development/libraries/poppler {
@@ -148,8 +122,6 @@ makeScopeWithSplicing' {
           suffix = "qt5";
         };
 
-        pulseaudio-qt = callPackage ../development/libraries/pulseaudio-qt { };
-
         pyotherside = callPackage ../development/libraries/pyotherside { };
 
         qca = callPackage ../development/libraries/qca {
@@ -224,12 +196,27 @@ makeScopeWithSplicing' {
         xp-pen-deco-01-v2-driver = callPackage ../os-specific/linux/xp-pen-drivers/deco-01-v2 { };
       }
       // lib.optionalAttrs config.allowAliases {
+        futuresql = throw "libsForQt5.futuresql has been removed"; # Added 2026-05-01
+        kdb = throw "libsForQt5.kdb has been removed"; # Added 2026-05-01
+        kdiagram = throw "libsForQt5.kdiagram has been removed"; # Added 2026-05-01
         kf5gpgmepp = throw ''
           'libsForQt5.kf5gpgmepp' has been removed because it has been unmaintained upstream since 2017.
           Consider switching to the gpgmepp included in gpgme (gpgme <2), or to the GnuPG fork of gpgmepp (gpgme 2+), instead.
         ''; # Added 2025-10-25
+        kirigami-addons = throw "libsForQt5.kirigami-addons has been removed"; # Added 2026-05-01
+        kproperty = throw "libsForQt5.kproperty has been removed"; # Added 2026-05-01
+        kquickimageedit = throw "libsForQt5.kquickimageedit has been removed"; # Added 2026-05-01
+        ktextaddons = throw "libsForQt5.ktextaddons has been removed"; # Added 2026-05-01
+        kuserfeedback = throw "libsForQt5.kuserfeedback has been removed"; # Added 2026-05-01
+        libqaccessibilityclient = throw "libsForQt5.libqaccessibilityclient has been removed"; # Added 2026-05-01
         mapbox-gl-native = throw "libsForQt5.mapbox-gl-native has been removed due to being broken for more than a year; see RFC 180"; # Added 2026-02-05
         maplibre-gl-native = throw "libsForQt5.maplibre-gl-native has been removed due to being broken and superseded by maplibre-native-qt"; # Added 2026-04-11
+        maui-core = throw "libsForQt5.maui-core has been removed"; # Added 2026-05-01
+        phonon = throw "libsForQt5.phonon has been removed"; # Added 2026-05-01
+        phonon-backend-gstreamer = throw "libsForQt5.phonon-backend-gstreamer has been removed"; # Added 2026-05-01
+        phonon-backend-vlc = throw "libsForQt5.phonon-backend-vlc has been removed"; # Added 2026-05-01
+        plasma-wayland-protocols = throw "libsForQt5.plasma-wayland-protocols has been removed"; # Added 2026-05-01
+        pulseaudio-qt = throw "libsForQt5.pulseaudio-qt has been removed";
       }
     ))
   );