gdk-pixbuf: rename from gdk_pixbuf

41 files changed, 86 insertions, 86 deletions

diff --git a/pkgs/desktops/deepin/go-lib/default.nix b/pkgs/desktops/deepin/go-lib/default.nix
index a6282b979f76..6f3a851eb2f1 100644
--- a/pkgs/desktops/deepin/go-lib/default.nix
+++ b/pkgs/desktops/deepin/go-lib/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, glib, xorg, gdk_pixbuf, pulseaudio,
+{ stdenv, fetchFromGitHub, glib, xorg, gdk-pixbuf, pulseaudio,
   mobile-broadband-provider-info, deepin }:
 
 stdenv.mkDerivation rec {
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     glib
     xorg.libX11
-    gdk_pixbuf
+    gdk-pixbuf
     pulseaudio
     mobile-broadband-provider-info
   ];
diff --git a/pkgs/desktops/deepin/qcef/default.nix b/pkgs/desktops/deepin/qcef/default.nix
index 8e75917907ac..eb220dcdae6e 100644
--- a/pkgs/desktops/deepin/qcef/default.nix
+++ b/pkgs/desktops/deepin/qcef/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchFromGitHub, pkgconfig, cmake, qtbase, qttools,
   qtwebchannel, qtx11extras,
   gnome2, nss, nspr, alsaLib, atk, cairo, cups, dbus,
-  expat, fontconfig, gdk_pixbuf, glib, gtk2,
+  expat, fontconfig, gdk-pixbuf, glib, gtk2,
   libxcb, pango, pulseaudio, xorg, deepin }:
 
 let
@@ -14,7 +14,7 @@ let
     dbus
     expat
     fontconfig
-    gdk_pixbuf
+    gdk-pixbuf
     glib
     gnome2.GConf
     gtk2
diff --git a/pkgs/desktops/gnome-3/apps/cheese/default.nix b/pkgs/desktops/gnome-3/apps/cheese/default.nix
index 4e5595385b48..f21e81237b26 100644
--- a/pkgs/desktops/gnome-3/apps/cheese/default.nix
+++ b/pkgs/desktops/gnome-3/apps/cheese/default.nix
@@ -2,7 +2,7 @@
 , pkgconfig, gtk3, glib, clutter-gtk, clutter-gst, udev, gst_all_1, itstool
 , libgudev, autoreconfHook, vala, docbook_xml_dtd_43, docbook_xsl, appstream-glib
 , libxslt, yelp-tools, gnome-common, gtk-doc
-, adwaita-icon-theme, librsvg, totem, gdk_pixbuf, gnome3, gnome-desktop, libxml2 }:
+, adwaita-icon-theme, librsvg, totem, gdk-pixbuf, gnome3, gnome-desktop, libxml2 }:
 
 stdenv.mkDerivation rec {
   name = "cheese-${version}";
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
     autoreconfHook gtk-doc yelp-tools gnome-common
   ];
   buildInputs = [ gtk3 glib gnome-video-effects
-                  gdk_pixbuf adwaita-icon-theme librsvg udev gst_all_1.gstreamer
+                  gdk-pixbuf adwaita-icon-theme librsvg udev gst_all_1.gstreamer
                   gst_all_1.gst-plugins-base gst_all_1.gst-plugins-good gnome-desktop
                   gst_all_1.gst-plugins-bad clutter-gtk clutter-gst
                   libcanberra-gtk3 libgudev ];
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
       # vp8enc preset
       --prefix GST_PRESET_PATH : "${gst_all_1.gst-plugins-good}/share/gstreamer-1.0/presets"
       # Thumbnailers
-      --prefix XDG_DATA_DIRS : "${gdk_pixbuf}/share"
+      --prefix XDG_DATA_DIRS : "${gdk-pixbuf}/share"
       --prefix XDG_DATA_DIRS : "${totem}/share"
     )
   '';
diff --git a/pkgs/desktops/gnome-3/apps/evolution/default.nix b/pkgs/desktops/gnome-3/apps/evolution/default.nix
index b82c1b2dfe58..621506653d62 100644
--- a/pkgs/desktops/gnome-3/apps/evolution/default.nix
+++ b/pkgs/desktops/gnome-3/apps/evolution/default.nix
@@ -27,7 +27,7 @@
 , sqlite
 , gnome3
 , librsvg
-, gdk_pixbuf
+, gdk-pixbuf
 , libsecret
 , nss
 , nspr
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
     db
     evolution-data-server
     gcr
-    gdk_pixbuf
+    gdk-pixbuf
     glib
     glib-networking
     gnome-desktop
diff --git a/pkgs/desktops/gnome-3/apps/glade/default.nix b/pkgs/desktops/gnome-3/apps/glade/default.nix
index e0078d5ae410..4424eb4a3fd4 100644
--- a/pkgs/desktops/gnome-3/apps/glade/default.nix
+++ b/pkgs/desktops/gnome-3/apps/glade/default.nix
@@ -1,7 +1,7 @@
 { stdenv, intltool, fetchurl, python3
 , pkgconfig, gtk3, glib, gobject-introspection
 , wrapGAppsHook, itstool, libxml2, docbook_xsl
-, gnome3, gdk_pixbuf, libxslt, gsettings-desktop-schemas }:
+, gnome3, gdk-pixbuf, libxslt, gsettings-desktop-schemas }:
 
 stdenv.mkDerivation rec {
   name = "glade-${version}";
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     gtk3 glib libxml2 python3 python3.pkgs.pygobject3
     gsettings-desktop-schemas
-    gdk_pixbuf gnome3.adwaita-icon-theme
+    gdk-pixbuf gnome3.adwaita-icon-theme
   ];
 
   enableParallelBuilding = true;
diff --git a/pkgs/desktops/gnome-3/apps/gnome-books/default.nix b/pkgs/desktops/gnome-3/apps/gnome-books/default.nix
index 6edf86ec552b..25ee957224c7 100644
--- a/pkgs/desktops/gnome-3/apps/gnome-books/default.nix
+++ b/pkgs/desktops/gnome-3/apps/gnome-books/default.nix
@@ -1,6 +1,6 @@
 { stdenv, meson, ninja, gettext, fetchurl, evince, gjs
 , pkgconfig, gtk3, glib, tracker, tracker-miners, libxslt
-, webkitgtk, gnome-desktop, libgepub, gnome3, gdk_pixbuf
+, webkitgtk, gnome-desktop, libgepub, gnome3, gdk-pixbuf
 , gsettings-desktop-schemas, adwaita-icon-theme, docbook_xsl
 , docbook_xml_dtd_42, desktop-file-utils, python3
 , gobject-introspection, wrapGAppsHook }:
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     gtk3 glib gsettings-desktop-schemas
-    gdk_pixbuf adwaita-icon-theme evince
+    gdk-pixbuf adwaita-icon-theme evince
     webkitgtk gjs gobject-introspection tracker
     tracker-miners gnome-desktop libgepub
   ];
diff --git a/pkgs/desktops/gnome-3/apps/gnome-clocks/default.nix b/pkgs/desktops/gnome-3/apps/gnome-clocks/default.nix
index f29f324f2ee8..d2845bef2a13 100644
--- a/pkgs/desktops/gnome-3/apps/gnome-clocks/default.nix
+++ b/pkgs/desktops/gnome-3/apps/gnome-clocks/default.nix
@@ -2,7 +2,7 @@
 , meson, ninja, gettext, pkgconfig, wrapGAppsHook, itstool, desktop-file-utils
 , vala, gobject-introspection, libxml2, gtk3, glib, gsound, sound-theme-freedesktop
 , gsettings-desktop-schemas, adwaita-icon-theme, gnome-desktop, geocode-glib
-, gnome3, gdk_pixbuf, geoclue2, libgweather }:
+, gnome3, gdk-pixbuf, geoclue2, libgweather }:
 
 stdenv.mkDerivation rec {
   name = "gnome-clocks-${version}";
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
     gobject-introspection # for finding vapi files
   ];
   buildInputs = [
-    gtk3 glib gsettings-desktop-schemas gdk_pixbuf adwaita-icon-theme
+    gtk3 glib gsettings-desktop-schemas gdk-pixbuf adwaita-icon-theme
     gnome-desktop geocode-glib geoclue2 libgweather gsound
   ];
 
diff --git a/pkgs/desktops/gnome-3/apps/gnome-documents/default.nix b/pkgs/desktops/gnome-3/apps/gnome-documents/default.nix
index e0f28bc3446d..e8796d49e9a1 100644
--- a/pkgs/desktops/gnome-3/apps/gnome-documents/default.nix
+++ b/pkgs/desktops/gnome-3/apps/gnome-documents/default.nix
@@ -2,7 +2,7 @@
 , pkgconfig, gtk3, glib, tracker, tracker-miners
 , itstool, libxslt, webkitgtk, libgdata
 , gnome-desktop, libzapojit, libgepub
-, gnome3, gdk_pixbuf, libsoup, docbook_xsl, docbook_xml_dtd_42
+, gnome3, gdk-pixbuf, libsoup, docbook_xsl, docbook_xml_dtd_42
 , gobject-introspection, inkscape, poppler_utils
 , desktop-file-utils, wrapGAppsHook, python3, gsettings-desktop-schemas }:
 
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   ];
   buildInputs = [
     gtk3 glib gsettings-desktop-schemas
-    gdk_pixbuf gnome3.adwaita-icon-theme evince
+    gdk-pixbuf gnome3.adwaita-icon-theme evince
     libsoup webkitgtk gjs gobject-introspection
     tracker tracker-miners libgdata
     gnome-desktop libzapojit libgepub
diff --git a/pkgs/desktops/gnome-3/apps/gnome-maps/default.nix b/pkgs/desktops/gnome-3/apps/gnome-maps/default.nix
index 25faf2676b82..6011092c0e0e 100644
--- a/pkgs/desktops/gnome-3/apps/gnome-maps/default.nix
+++ b/pkgs/desktops/gnome-3/apps/gnome-maps/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, meson, ninja, gettext, python3, pkgconfig, gnome3, gtk3
-, gobject-introspection, gdk_pixbuf, librsvg, libgweather
+, gobject-introspection, gdk-pixbuf, librsvg, libgweather
 , geoclue2, wrapGAppsHook, folks, libchamplain, gfbgraph, libsoup, gsettings-desktop-schemas
 , webkitgtk, gjs, libgee, geocode-glib, evolution-data-server, gnome-online-accounts }:
 
@@ -21,7 +21,7 @@ in stdenv.mkDerivation rec {
     gobject-introspection
     gtk3 geoclue2 gjs libgee folks gfbgraph
     geocode-glib libchamplain libsoup
-    gdk_pixbuf librsvg libgweather
+    gdk-pixbuf librsvg libgweather
     gsettings-desktop-schemas evolution-data-server
     gnome-online-accounts gnome3.adwaita-icon-theme
     webkitgtk
diff --git a/pkgs/desktops/gnome-3/apps/gnome-music/default.nix b/pkgs/desktops/gnome-3/apps/gnome-music/default.nix
index 1f1bfafb5950..9b8c96729ad7 100644
--- a/pkgs/desktops/gnome-3/apps/gnome-music/default.nix
+++ b/pkgs/desktops/gnome-3/apps/gnome-music/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, meson, ninja, gettext, fetchurl, gdk_pixbuf, tracker
+{ stdenv, meson, ninja, gettext, fetchurl, gdk-pixbuf, tracker
 , libxml2, python3, libnotify, wrapGAppsHook, libmediaart
 , gobject-introspection, gnome-online-accounts, grilo, grilo-plugins
 , pkgconfig, gtk3, glib, desktop-file-utils, appstream-glib
@@ -18,7 +18,7 @@ python3.pkgs.buildPythonApplication rec {
   nativeBuildInputs = [ meson ninja gettext itstool pkgconfig libxml2 wrapGAppsHook desktop-file-utils appstream-glib gobject-introspection ];
   buildInputs = with gst_all_1; [
     gtk3 glib libmediaart gnome-online-accounts gobject-introspection
-    gdk_pixbuf gnome3.adwaita-icon-theme python3
+    gdk-pixbuf gnome3.adwaita-icon-theme python3
     grilo grilo-plugins libnotify libdazzle libsoup
     gsettings-desktop-schemas tracker
     gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly
diff --git a/pkgs/desktops/gnome-3/apps/gnome-photos/default.nix b/pkgs/desktops/gnome-3/apps/gnome-photos/default.nix
index 9d08cc24aadb..e5bd4d8b950f 100644
--- a/pkgs/desktops/gnome-3/apps/gnome-photos/default.nix
+++ b/pkgs/desktops/gnome-3/apps/gnome-photos/default.nix
@@ -3,7 +3,7 @@
 , itstool, gegl, babl, libdazzle, gfbgraph, grilo-plugins
 , grilo, gnome-online-accounts
 , desktop-file-utils, wrapGAppsHook
-, gnome3, gdk_pixbuf, gexiv2, geocode-glib
+, gnome3, gdk-pixbuf, gexiv2, geocode-glib
 , dleyna-renderer, dbus, meson, ninja, python3, gsettings-desktop-schemas }:
 
 let
@@ -26,7 +26,7 @@ in stdenv.mkDerivation rec {
   buildInputs = [
     gtk3 glib gegl babl libgdata libdazzle
     gsettings-desktop-schemas
-    gdk_pixbuf gnome3.adwaita-icon-theme
+    gdk-pixbuf gnome3.adwaita-icon-theme
     gfbgraph grilo-plugins grilo
     gnome-online-accounts tracker
     gexiv2 geocode-glib dleyna-renderer
diff --git a/pkgs/desktops/gnome-3/apps/gnome-sound-recorder/default.nix b/pkgs/desktops/gnome-3/apps/gnome-sound-recorder/default.nix
index fbf80fc32e84..907c0424454a 100644
--- a/pkgs/desktops/gnome-3/apps/gnome-sound-recorder/default.nix
+++ b/pkgs/desktops/gnome-3/apps/gnome-sound-recorder/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, gettext, gobject-introspection, wrapGAppsHook, gjs, glib, gtk3, gdk_pixbuf, gst_all_1, gnome3
+{ stdenv, fetchurl, pkgconfig, gettext, gobject-introspection, wrapGAppsHook, gjs, glib, gtk3, gdk-pixbuf, gst_all_1, gnome3
 , meson, ninja, python3, hicolor-icon-theme, desktop-file-utils }:
 
 stdenv.mkDerivation rec {
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
     pkgconfig gettext meson ninja gobject-introspection
     wrapGAppsHook python3 hicolor-icon-theme desktop-file-utils
   ];
-  buildInputs = [ gjs glib gtk3 gdk_pixbuf ] ++ (with gst_all_1; [ gstreamer.dev gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad ]);
+  buildInputs = [ gjs glib gtk3 gdk-pixbuf ] ++ (with gst_all_1; [ gstreamer.dev gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad ]);
 
   postPatch = ''
     chmod +x build-aux/meson_post_install.py
diff --git a/pkgs/desktops/gnome-3/apps/polari/default.nix b/pkgs/desktops/gnome-3/apps/polari/default.nix
index 73b8016d97b4..51fea63b7142 100644
--- a/pkgs/desktops/gnome-3/apps/polari/default.nix
+++ b/pkgs/desktops/gnome-3/apps/polari/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, itstool, fetchurl, gdk_pixbuf, adwaita-icon-theme
+{ stdenv, itstool, fetchurl, gdk-pixbuf, adwaita-icon-theme
 , telepathy-glib, gjs, meson, ninja, gettext, telepathy-idle, libxml2, desktop-file-utils
 , pkgconfig, gtk3, glib, libsecret, libsoup, gobject-introspection, appstream-glib
 , gnome3, wrapGAppsHook, telepathy-logger, gspell, gsettings-desktop-schemas }:
@@ -23,7 +23,7 @@ in stdenv.mkDerivation rec {
 
   buildInputs = [
     gtk3 glib adwaita-icon-theme gsettings-desktop-schemas
-    telepathy-glib telepathy-logger gjs gspell gdk_pixbuf libsecret libsoup
+    telepathy-glib telepathy-logger gjs gspell gdk-pixbuf libsecret libsoup
   ];
 
   passthru = {
diff --git a/pkgs/desktops/gnome-3/core/adwaita-icon-theme/default.nix b/pkgs/desktops/gnome-3/core/adwaita-icon-theme/default.nix
index 0f88372d9cfb..9ef94adcbd09 100644
--- a/pkgs/desktops/gnome-3/core/adwaita-icon-theme/default.nix
+++ b/pkgs/desktops/gnome-3/core/adwaita-icon-theme/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pkgconfig, intltool, gnome3
-, iconnamingutils, gtk3, gdk_pixbuf, librsvg, hicolor-icon-theme }:
+, iconnamingutils, gtk3, gdk-pixbuf, librsvg, hicolor-icon-theme }:
 
 stdenv.mkDerivation rec {
   name = "adwaita-icon-theme-${version}";
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   # For convenience, we can specify adwaita-icon-theme only in packages
   propagatedBuildInputs = [ hicolor-icon-theme ];
 
-  buildInputs = [ gdk_pixbuf librsvg ];
+  buildInputs = [ gdk-pixbuf librsvg ];
 
   nativeBuildInputs = [ pkgconfig intltool iconnamingutils gtk3 ];
 
diff --git a/pkgs/desktops/gnome-3/core/empathy/default.nix b/pkgs/desktops/gnome-3/core/empathy/default.nix
index 5a08454cb35e..73c3f65a968a 100644
--- a/pkgs/desktops/gnome-3/core/empathy/default.nix
+++ b/pkgs/desktops/gnome-3/core/empathy/default.nix
@@ -1,5 +1,5 @@
 { stdenv, intltool, fetchurl, webkitgtk, pkgconfig, gtk3, glib
-, file, librsvg, gnome3, gdk_pixbuf, python3
+, file, librsvg, gnome3, gdk-pixbuf, python3
 , telepathy-glib, telepathy-farstream, glibcLocales
 , clutter-gtk, clutter-gst, gst_all_1, cogl, gnome-online-accounts
 , gcr, libsecret, folks, libpulseaudio, telepathy-mission-control
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
     gtk3 glib webkitgtk icu gnome-online-accounts
     telepathy-glib clutter-gtk clutter-gst cogl
     gst_all_1.gstreamer gst_all_1.gst-plugins-base
-    gcr libsecret libpulseaudio gdk_pixbuf
+    gcr libsecret libpulseaudio gdk-pixbuf
     libnotify clutter libsoup gnutls libgee p11-kit
     libcanberra-gtk3 telepathy-farstream farstream
     gnome3.adwaita-icon-theme gsettings-desktop-schemas
diff --git a/pkgs/desktops/gnome-3/core/eog/default.nix b/pkgs/desktops/gnome-3/core/eog/default.nix
index 5c896ec01fc0..8bb727a6fc53 100644
--- a/pkgs/desktops/gnome-3/core/eog/default.nix
+++ b/pkgs/desktops/gnome-3/core/eog/default.nix
@@ -1,5 +1,5 @@
 { fetchurl, stdenv, meson, ninja, gettext, itstool, pkgconfig, libxml2, libjpeg, libpeas, gnome3
-, gtk3, glib, gsettings-desktop-schemas, adwaita-icon-theme, gnome-desktop, lcms2, gdk_pixbuf, exempi
+, gtk3, glib, gsettings-desktop-schemas, adwaita-icon-theme, gnome-desktop, lcms2, gdk-pixbuf, exempi
 , shared-mime-info, wrapGAppsHook, librsvg, libexif, gobject-introspection, python3 }:
 
 let
@@ -16,7 +16,7 @@ in stdenv.mkDerivation rec {
   nativeBuildInputs = [ meson ninja pkgconfig gettext itstool wrapGAppsHook libxml2 gobject-introspection python3 ];
 
   buildInputs = [
-    libjpeg gtk3 gdk_pixbuf glib libpeas librsvg lcms2 gnome-desktop libexif exempi
+    libjpeg gtk3 gdk-pixbuf glib libpeas librsvg lcms2 gnome-desktop libexif exempi
     gsettings-desktop-schemas shared-mime-info adwaita-icon-theme
   ];
 
@@ -28,7 +28,7 @@ in stdenv.mkDerivation rec {
   preFixup = ''
     gappsWrapperArgs+=(
       # Thumbnailers
-      --prefix XDG_DATA_DIRS : "${gdk_pixbuf}/share"
+      --prefix XDG_DATA_DIRS : "${gdk-pixbuf}/share"
       --prefix XDG_DATA_DIRS : "${librsvg}/share"
       --prefix XDG_DATA_DIRS : "${shared-mime-info}/share"
     )
diff --git a/pkgs/desktops/gnome-3/core/epiphany/default.nix b/pkgs/desktops/gnome-3/core/epiphany/default.nix
index f4e87b50906b..776da94242fc 100644
--- a/pkgs/desktops/gnome-3/core/epiphany/default.nix
+++ b/pkgs/desktops/gnome-3/core/epiphany/default.nix
@@ -2,7 +2,7 @@
 , wrapGAppsHook, gnome3, libxml2, libxslt, itstool
 , webkitgtk, libsoup, glib-networking, libsecret, gnome-desktop, libnotify, p11-kit
 , sqlite, gcr, isocodes, desktop-file-utils, python3
-, gdk_pixbuf, gst_all_1, json-glib, libdazzle, libhandy }:
+, gdk-pixbuf, gst_all_1, json-glib, libdazzle, libhandy }:
 
 stdenv.mkDerivation rec {
   name = "epiphany-${version}";
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     gtk3 glib webkitgtk libsoup libxml2 libsecret gnome-desktop libnotify
     sqlite isocodes p11-kit icu libhandy
-    gdk_pixbuf gnome3.adwaita-icon-theme gcr
+    gdk-pixbuf gnome3.adwaita-icon-theme gcr
     glib-networking gst_all_1.gstreamer gst_all_1.gst-plugins-base
     gst_all_1.gst-plugins-good gst_all_1.gst-plugins-bad gst_all_1.gst-plugins-ugly
     gst_all_1.gst-libav json-glib libdazzle
diff --git a/pkgs/desktops/gnome-3/core/evince/default.nix b/pkgs/desktops/gnome-3/core/evince/default.nix
index 68beb0e47e35..9313ca8990c9 100644
--- a/pkgs/desktops/gnome-3/core/evince/default.nix
+++ b/pkgs/desktops/gnome-3/core/evince/default.nix
@@ -11,7 +11,7 @@
 , gtk3
 , pango
 , atk
-, gdk_pixbuf
+, gdk-pixbuf
 , shared-mime-info
 , itstool
 , gnome3
@@ -83,7 +83,7 @@ stdenv.mkDerivation rec {
     gtk3
     pango
     atk
-    gdk_pixbuf
+    gdk-pixbuf
     libxml2
     gsettings-desktop-schemas
     poppler
diff --git a/pkgs/desktops/gnome-3/core/gjs/default.nix b/pkgs/desktops/gnome-3/core/gjs/default.nix
index ef4de3699151..4e43d5f9d50c 100644
--- a/pkgs/desktops/gnome-3/core/gjs/default.nix
+++ b/pkgs/desktops/gnome-3/core/gjs/default.nix
@@ -1,5 +1,5 @@
 { fetchurl, stdenv, pkgconfig, gnome3, gtk3, atk, gobject-introspection
-, spidermonkey_60, pango, readline, glib, libxml2, dbus, gdk_pixbuf
+, spidermonkey_60, pango, readline, glib, libxml2, dbus, gdk-pixbuf
 , makeWrapper }:
 
 stdenv.mkDerivation rec {
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
     moveToOutput "libexec/gjs/installed-tests" "$installedTests"
 
     wrapProgram "$installedTests/libexec/gjs/installed-tests/minijasmine" \
-      --prefix GI_TYPELIB_PATH : "${stdenv.lib.makeSearchPath "lib/girepository-1.0" [ gtk3 atk pango.out gdk_pixbuf ]}:$installedTests/libexec/gjs/installed-tests"
+      --prefix GI_TYPELIB_PATH : "${stdenv.lib.makeSearchPath "lib/girepository-1.0" [ gtk3 atk pango.out gdk-pixbuf ]}:$installedTests/libexec/gjs/installed-tests"
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix b/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix
index c7a9b4ccfbd1..e947f8625c61 100644
--- a/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix
@@ -1,6 +1,6 @@
 { fetchurl, stdenv, substituteAll, meson, ninja, pkgconfig, gnome3, ibus, gettext, upower, wrapGAppsHook
 , libcanberra-gtk3, accountsservice, libpwquality, libpulseaudio
-, gdk_pixbuf, librsvg, libgudev, libsecret, gnome-color-manager
+, gdk-pixbuf, librsvg, libgudev, libsecret, gnome-color-manager
 , libxml2, polkit, libxslt, libgtop, libsoup, colord, colord-gtk
 , libkrb5, networkmanagerapplet, networkmanager, glibc
 , libwacom, samba, shared-mime-info, tzdata, libgnomekbd
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
     gnome-online-accounts libsoup colord libpulseaudio fontconfig colord-gtk
     accountsservice libkrb5 networkmanagerapplet libwacom samba
     grilo libpwquality vino libcanberra-gtk3 libgudev libsecret
-    gdk_pixbuf adwaita-icon-theme librsvg clutter clutter-gtk cheese
+    gdk-pixbuf adwaita-icon-theme librsvg clutter clutter-gtk cheese
     networkmanager modemmanager gnome-bluetooth tracker
     udisks2 gsound libhandy
     mutter # schemas for the keybindings
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
     gappsWrapperArgs+=(
       --prefix XDG_DATA_DIRS : "${sound-theme-freedesktop}/share"
       # Thumbnailers (for setting user profile pictures)
-      --prefix XDG_DATA_DIRS : "${gdk_pixbuf}/share"
+      --prefix XDG_DATA_DIRS : "${gdk-pixbuf}/share"
       --prefix XDG_DATA_DIRS : "${librsvg}/share"
       # WM keyboard shortcuts
       --prefix XDG_DATA_DIRS : "${mutter}/share"
diff --git a/pkgs/desktops/gnome-3/core/gnome-remote-desktop/default.nix b/pkgs/desktops/gnome-3/core/gnome-remote-desktop/default.nix
index 4a22fc535197..fd507acc009d 100644
--- a/pkgs/desktops/gnome-3/core/gnome-remote-desktop/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-remote-desktop/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitLab, meson, ninja, pkgconfig, python3, wrapGAppsHook
-, glib, pipewire, systemd, libvncserver, libsecret, libnotify, gdk_pixbuf, gnome3 }:
+, glib, pipewire, systemd, libvncserver, libsecret, libnotify, gdk-pixbuf, gnome3 }:
 
 stdenv.mkDerivation rec {
   pname = "gnome-remote-desktop";
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     glib pipewire systemd libvncserver libsecret libnotify
-    gdk_pixbuf # For libnotify
+    gdk-pixbuf # For libnotify
   ];
 
   postPatch = ''
diff --git a/pkgs/desktops/gnome-3/core/gnome-shell/default.nix b/pkgs/desktops/gnome-3/core/gnome-shell/default.nix
index d9001d9b1b94..1363cf6d6695 100644
--- a/pkgs/desktops/gnome-3/core/gnome-shell/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-shell/default.nix
@@ -3,7 +3,7 @@
 , libstartup_notification, telepathy-glib, telepathy-logger, libXtst, unzip, glibcLocales, shared-mime-info
 , libgweather, libcanberra-gtk3, librsvg, geoclue2, perl, docbook_xml_dtd_42, desktop-file-utils
 , libpulseaudio, libical, gobject-introspection, gstreamer, wrapGAppsHook, libxslt, gcr, caribou
-, accountsservice, gdk_pixbuf, gdm, upower, ibus, networkmanagerapplet, libgnomekbd, gnome-desktop
+, accountsservice, gdk-pixbuf, gdm, upower, ibus, networkmanagerapplet, libgnomekbd, gnome-desktop
 , gsettings-desktop-schemas, gnome-keyring, glib, gjs, mutter, evolution-data-server, gtk3
 , sassc, systemd, gst_all_1, adwaita-icon-theme, gnome-bluetooth, gnome-clocks, gnome-settings-daemon }:
 
@@ -30,7 +30,7 @@ in stdenv.mkDerivation rec {
   buildInputs = [
     systemd caribou
     gsettings-desktop-schemas gnome-keyring glib gcr json-glib accountsservice
-    libcroco libsecret libsoup polkit gdk_pixbuf librsvg
+    libcroco libsecret libsoup polkit gdk-pixbuf librsvg
     clutter networkmanager libstartup_notification telepathy-glib
     libXtst gjs mutter libpulseaudio evolution-data-server
     libical gtk3 gstreamer gdm libcanberra-gtk3 geoclue2
diff --git a/pkgs/desktops/gnome-3/core/gnome-system-monitor/default.nix b/pkgs/desktops/gnome-3/core/gnome-system-monitor/default.nix
index 83159c2ad72f..5c332c4135c5 100644
--- a/pkgs/desktops/gnome-3/core/gnome-system-monitor/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-system-monitor/default.nix
@@ -1,6 +1,6 @@
 { stdenv, gettext, fetchurl, pkgconfig, gtkmm3, libxml2, polkit
 , bash, gtk3, glib, wrapGAppsHook, meson, ninja, python3
-, gsettings-desktop-schemas, itstool, gnome3, librsvg, gdk_pixbuf, libgtop, systemd }:
+, gsettings-desktop-schemas, itstool, gnome3, librsvg, gdk-pixbuf, libgtop, systemd }:
 
 stdenv.mkDerivation rec {
   name = "gnome-system-monitor-${version}";
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     polkit # for ITS file
   ];
   buildInputs = [
-    bash gtk3 glib libxml2 gtkmm3 libgtop gdk_pixbuf gnome3.adwaita-icon-theme librsvg
+    bash gtk3 glib libxml2 gtkmm3 libgtop gdk-pixbuf gnome3.adwaita-icon-theme librsvg
     gsettings-desktop-schemas systemd
   ];
 
diff --git a/pkgs/desktops/gnome-3/core/gnome-themes-extra/default.nix b/pkgs/desktops/gnome-3/core/gnome-themes-extra/default.nix
index 3d5cfb85d671..5cd8f2494815 100644
--- a/pkgs/desktops/gnome-3/core/gnome-themes-extra/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-themes-extra/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, intltool, gtk3, gnome3, librsvg, pkgconfig, pango, atk, gtk2
-, gdk_pixbuf }:
+, gdk-pixbuf }:
 
 let
   pname = "gnome-themes-extra";
@@ -19,7 +19,7 @@ in stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ pkgconfig intltool ];
-  buildInputs = [ gtk3 librsvg pango atk gtk2 gdk_pixbuf gnome3.adwaita-icon-theme ];
+  buildInputs = [ gtk3 librsvg pango atk gtk2 gdk-pixbuf gnome3.adwaita-icon-theme ];
 
   postFixup = ''
     gtk-update-icon-cache "$out"/share/icons/HighContrast
diff --git a/pkgs/desktops/gnome-3/core/nautilus/default.nix b/pkgs/desktops/gnome-3/core/nautilus/default.nix
index 2eeb77db0c65..854ce9364468 100644
--- a/pkgs/desktops/gnome-3/core/nautilus/default.nix
+++ b/pkgs/desktops/gnome-3/core/nautilus/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, meson, ninja, pkgconfig, gettext, libxml2
 , desktop-file-utils, python3, wrapGAppsHook , gtk3, gnome3, gnome-autoar
 , glib-networking, shared-mime-info, libnotify, libexif, libseccomp , exempi
-, librsvg, tracker, tracker-miners, gexiv2, libselinux, gdk_pixbuf
+, librsvg, tracker, tracker-miners, gexiv2, libselinux, gdk-pixbuf
 , substituteAll, bubblewrap, gst_all_1, gsettings-desktop-schemas
 }:
 
@@ -32,7 +32,7 @@ in stdenv.mkDerivation rec {
   preFixup = ''
     gappsWrapperArgs+=(
       # Thumbnailers
-      --prefix XDG_DATA_DIRS : "${gdk_pixbuf}/share"
+      --prefix XDG_DATA_DIRS : "${gdk-pixbuf}/share"
       --prefix XDG_DATA_DIRS : "${librsvg}/share"
       --prefix XDG_DATA_DIRS : "${shared-mime-info}/share"
     )
diff --git a/pkgs/desktops/gnome-3/core/simple-scan/default.nix b/pkgs/desktops/gnome-3/core/simple-scan/default.nix
index 047e79e14e5c..4f57c5247d97 100644
--- a/pkgs/desktops/gnome-3/core/simple-scan/default.nix
+++ b/pkgs/desktops/gnome-3/core/simple-scan/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, meson, ninja, pkgconfig, gettext, itstool, python3, wrapGAppsHook
-, cairo, gdk_pixbuf, colord, glib, gtk3, gusb, packagekit, libwebp
+, cairo, gdk-pixbuf, colord, glib, gtk3, gusb, packagekit, libwebp
 , libxml2, sane-backends, vala, gnome3, gobject-introspection }:
 
 stdenv.mkDerivation rec {
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   };
 
   buildInputs = [
-    cairo gdk_pixbuf colord glib gnome3.adwaita-icon-theme gusb
+    cairo gdk-pixbuf colord glib gnome3.adwaita-icon-theme gusb
     gtk3 libwebp packagekit sane-backends vala
   ];
   nativeBuildInputs = [
diff --git a/pkgs/desktops/gnome-3/core/sushi/default.nix b/pkgs/desktops/gnome-3/core/sushi/default.nix
index c0d5d2be26d4..5554dbdfe302 100644
--- a/pkgs/desktops/gnome-3/core/sushi/default.nix
+++ b/pkgs/desktops/gnome-3/core/sushi/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, pkgconfig, meson, gettext, gobject-introspection, glib
 , clutter-gtk, clutter-gst, gnome3, gtksourceview, gjs
 , webkitgtk, libmusicbrainz5, icu, wrapGAppsHook, gst_all_1
-, gdk_pixbuf, librsvg, gtk3, harfbuzz, ninja }:
+, gdk-pixbuf, librsvg, gtk3, harfbuzz, ninja }:
 
 stdenv.mkDerivation rec {
   name = "sushi-${version}";
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   ];
   buildInputs = [
     glib gtk3 gnome3.evince icu harfbuzz
-    clutter-gtk clutter-gst gjs gtksourceview gdk_pixbuf
+    clutter-gtk clutter-gst gjs gtksourceview gdk-pixbuf
     librsvg libmusicbrainz5 webkitgtk
     gst_all_1.gstreamer gst_all_1.gst-plugins-base gst_all_1.gst-plugins-good
   ];
diff --git a/pkgs/desktops/gnome-3/core/totem/default.nix b/pkgs/desktops/gnome-3/core/totem/default.nix
index 15417d4ddbb9..4953b7ec7a82 100644
--- a/pkgs/desktops/gnome-3/core/totem/default.nix
+++ b/pkgs/desktops/gnome-3/core/totem/default.nix
@@ -3,7 +3,7 @@
 , pkgconfig, gtk3, glib, gobject-introspection, totem-pl-parser
 , wrapGAppsHook, itstool, libxml2, vala, gnome3, grilo, grilo-plugins
 , libpeas, adwaita-icon-theme, gnome-desktop, gsettings-desktop-schemas
-, gdk_pixbuf, tracker, nautilus, xvfb_run }:
+, gdk-pixbuf, tracker, nautilus, xvfb_run }:
 
 stdenv.mkDerivation rec {
   name = "totem-${version}";
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     gtk3 glib grilo clutter-gtk clutter-gst totem-pl-parser grilo-plugins
     gst_all_1.gstreamer gst_all_1.gst-plugins-base gst_all_1.gst-plugins-good gst_all_1.gst-plugins-bad
     gst_all_1.gst-plugins-ugly gst_all_1.gst-libav libpeas shared-mime-info
-    gdk_pixbuf libxml2 adwaita-icon-theme gnome-desktop
+    gdk-pixbuf libxml2 adwaita-icon-theme gnome-desktop
     gsettings-desktop-schemas tracker nautilus
     python3Packages.pygobject3 python3Packages.dbus-python # for plug-ins
   ];
diff --git a/pkgs/desktops/gnome-3/games/atomix/default.nix b/pkgs/desktops/gnome-3/games/atomix/default.nix
index 00b3a04a1683..c9395166c521 100644
--- a/pkgs/desktops/gnome-3/games/atomix/default.nix
+++ b/pkgs/desktops/gnome-3/games/atomix/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, meson, ninja, pkgconfig, wrapGAppsHook, python3
-, gettext, gnome3, glib, gtk3, libgnome-games-support, gdk_pixbuf }:
+, gettext, gnome3, glib, gtk3, libgnome-games-support, gdk-pixbuf }:
 
 let
   pname = "atomix";
@@ -13,7 +13,7 @@ in stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ meson ninja pkgconfig gettext wrapGAppsHook python3 ];
-  buildInputs = [ glib gtk3 gdk_pixbuf libgnome-games-support gnome3.adwaita-icon-theme ];
+  buildInputs = [ glib gtk3 gdk-pixbuf libgnome-games-support gnome3.adwaita-icon-theme ];
 
   postPatch = ''
     chmod +x meson_post_install.py
diff --git a/pkgs/desktops/gnome-3/games/iagno/default.nix b/pkgs/desktops/gnome-3/games/iagno/default.nix
index 540e379210ee..86a1bd6485be 100644
--- a/pkgs/desktops/gnome-3/games/iagno/default.nix
+++ b/pkgs/desktops/gnome-3/games/iagno/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, gtk3, gnome3, gdk_pixbuf, librsvg, wrapGAppsHook
+{ stdenv, fetchurl, pkgconfig, gtk3, gnome3, gdk-pixbuf, librsvg, wrapGAppsHook
 , itstool, libcanberra-gtk3, libxml2
 , meson, ninja, python3, vala, desktop-file-utils
 }:
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
     meson ninja python3 vala desktop-file-utils
     pkgconfig wrapGAppsHook itstool libxml2
   ];
-  buildInputs = [ gtk3 gnome3.adwaita-icon-theme gdk_pixbuf librsvg libcanberra-gtk3 ];
+  buildInputs = [ gtk3 gnome3.adwaita-icon-theme gdk-pixbuf librsvg libcanberra-gtk3 ];
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/desktops/gnome-3/games/lightsoff/default.nix b/pkgs/desktops/gnome-3/games/lightsoff/default.nix
index 18c6f43b3b36..5801c2935632 100644
--- a/pkgs/desktops/gnome-3/games/lightsoff/default.nix
+++ b/pkgs/desktops/gnome-3/games/lightsoff/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, vala, pkgconfig, gtk3, gnome3, gdk_pixbuf, librsvg, wrapGAppsHook
+{ stdenv, fetchurl, vala, pkgconfig, gtk3, gnome3, gdk-pixbuf, librsvg, wrapGAppsHook
 , gettext, itstool, clutter, clutter-gtk, libxml2, appstream-glib
 , meson, ninja, python3 }:
 
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
     vala pkgconfig wrapGAppsHook itstool gettext appstream-glib libxml2
     meson ninja python3
   ];
-  buildInputs = [ gtk3 gnome3.adwaita-icon-theme gdk_pixbuf librsvg clutter clutter-gtk ];
+  buildInputs = [ gtk3 gnome3.adwaita-icon-theme gdk-pixbuf librsvg clutter clutter-gtk ];
 
   postPatch = ''
     chmod +x build-aux/meson_post_install.py
diff --git a/pkgs/desktops/gnome-3/games/quadrapassel/default.nix b/pkgs/desktops/gnome-3/games/quadrapassel/default.nix
index 712f984cbf9a..78ed0d9fa68a 100644
--- a/pkgs/desktops/gnome-3/games/quadrapassel/default.nix
+++ b/pkgs/desktops/gnome-3/games/quadrapassel/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, gtk3, gnome3, gdk_pixbuf
+{ stdenv, fetchurl, pkgconfig, gtk3, gnome3, gdk-pixbuf
 , librsvg, libcanberra-gtk3, libmanette
 , gettext, itstool, libxml2, clutter, clutter-gtk, wrapGAppsHook
 , meson, ninja, python3, vala, desktop-file-utils
@@ -21,7 +21,7 @@ in stdenv.mkDerivation rec {
     libxml2 itstool gettext wrapGAppsHook
   ];
   buildInputs = [
-    gtk3 gdk_pixbuf librsvg libmanette
+    gtk3 gdk-pixbuf librsvg libmanette
     libcanberra-gtk3 clutter libxml2 clutter-gtk
   ];
 
diff --git a/pkgs/desktops/gnome-3/games/tali/default.nix b/pkgs/desktops/gnome-3/games/tali/default.nix
index 5ec29554b363..d9f3e5fc5ff8 100644
--- a/pkgs/desktops/gnome-3/games/tali/default.nix
+++ b/pkgs/desktops/gnome-3/games/tali/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, gtk3, gnome3, gdk_pixbuf
+{ stdenv, fetchurl, pkgconfig, gtk3, gnome3, gdk-pixbuf
 , librsvg, gettext, itstool, libxml2, wrapGAppsHook
 , meson, ninja, python3, desktop-file-utils
 }:
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     pkgconfig gnome3.adwaita-icon-theme
     libxml2 itstool gettext wrapGAppsHook
   ];
-  buildInputs = [ gtk3 gdk_pixbuf librsvg ];
+  buildInputs = [ gtk3 gdk-pixbuf librsvg ];
 
   postPatch = ''
     chmod +x build-aux/meson_post_install.py
diff --git a/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix b/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix
index fd7f7ef609df..7a54114d2dbc 100644
--- a/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix
+++ b/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix
@@ -1,7 +1,7 @@
 { stdenv, meson, ninja, gettext, fetchurl
 , pkgconfig, gtk3, glib, libsoup, gsettings-desktop-schemas
 , itstool, libxml2, python3Packages
-, gnome3, gdk_pixbuf, libnotify, gobject-introspection, wrapGAppsHook }:
+, gnome3, gdk-pixbuf, libnotify, gobject-introspection, wrapGAppsHook }:
 
 let
   pname = "gnome-tweaks";
@@ -19,7 +19,7 @@ in stdenv.mkDerivation rec {
   ];
   buildInputs = [
     gtk3 glib gsettings-desktop-schemas
-    gdk_pixbuf gnome3.adwaita-icon-theme
+    gdk-pixbuf gnome3.adwaita-icon-theme
     libnotify gnome3.gnome-shell python3Packages.pygobject3
     libsoup gnome3.gnome-settings-daemon gnome3.nautilus
     gnome3.mutter gnome3.gnome-desktop gobject-introspection
diff --git a/pkgs/desktops/lxde/core/lxpanel/default.nix b/pkgs/desktops/lxde/core/lxpanel/default.nix
index af9570a2c733..a24a33c2e76b 100644
--- a/pkgs/desktops/lxde/core/lxpanel/default.nix
+++ b/pkgs/desktops/lxde/core/lxpanel/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pkgconfig, gettext, m4, intltool, libxmlxx, keybinder
-, gtk2, libX11, libfm, libwnck, libXmu, libXpm, cairo, gdk_pixbuf
+, gtk2, libX11, libfm, libwnck, libXmu, libXpm, cairo, gdk-pixbuf
 , menu-cache, lxmenu-data, wirelesstools
 , supportAlsa ? false, alsaLib
 }:
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ pkgconfig gettext m4 intltool libxmlxx ];
   buildInputs = [
-    keybinder gtk2 libX11 libfm libwnck libXmu libXpm cairo gdk_pixbuf
+    keybinder gtk2 libX11 libfm libwnck libXmu libXpm cairo gdk-pixbuf
     menu-cache lxmenu-data m4 wirelesstools
   ] ++ stdenv.lib.optional supportAlsa alsaLib;
 
diff --git a/pkgs/desktops/mate/caja-dropbox/default.nix b/pkgs/desktops/mate/caja-dropbox/default.nix
index f5b71eba141a..597391eb135c 100644
--- a/pkgs/desktops/mate/caja-dropbox/default.nix
+++ b/pkgs/desktops/mate/caja-dropbox/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, substituteAll
-, pkgconfig, gobject-introspection, gdk_pixbuf
+, pkgconfig, gobject-introspection, gdk-pixbuf
 , gtk3, mate, python3, dropbox }:
 
 let
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [
     pkgconfig
     gobject-introspection
-    gdk_pixbuf
+    gdk-pixbuf
     (python3.withPackages (ps: with ps; [
       docutils
       pygobject3
diff --git a/pkgs/desktops/mate/mate-themes/default.nix b/pkgs/desktops/mate/mate-themes/default.nix
index 3c7b16a68312..a4724049f7c1 100644
--- a/pkgs/desktops/mate/mate-themes/default.nix
+++ b/pkgs/desktops/mate/mate-themes/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pkgconfig, intltool, mate, gtk2, gtk3,
-  gtk_engines, gtk-engine-murrine, gdk_pixbuf, librsvg }:
+  gtk_engines, gtk-engine-murrine, gdk-pixbuf, librsvg }:
 
 stdenv.mkDerivation rec {
   name = "mate-themes-${version}";
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ pkgconfig intltool gtk3 ];
 
-  buildInputs = [ mate.mate-icon-theme gtk2 gtk_engines gdk_pixbuf librsvg ];
+  buildInputs = [ mate.mate-icon-theme gtk2 gtk_engines gdk-pixbuf librsvg ];
 
   propagatedUserEnvPkgs = [ gtk-engine-murrine ];
 
diff --git a/pkgs/desktops/maxx/default.nix b/pkgs/desktops/maxx/default.nix
index 5edebb39be41..aaf9986fbb2d 100644
--- a/pkgs/desktops/maxx/default.nix
+++ b/pkgs/desktops/maxx/default.nix
@@ -3,7 +3,7 @@
 
 , libX11, libXext, libXi, libXau, libXrender, libXft, libXmu, libSM, libXcomposite, libXfixes, libXpm
 , libXinerama, libXdamage, libICE, libXtst, libXaw, fontconfig, pango, cairo, glib, libxml2, atk, gtk2
-, gdk_pixbuf, libGL, ncurses5
+, gdk-pixbuf, libGL, ncurses5
 
 , dmidecode, pciutils, usbutils
 }:
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     stdenv.cc.cc libX11 libXext libXi libXau libXrender libXft libXmu libSM libXcomposite libXfixes libXpm
     libXinerama libXdamage libICE libXtst libXaw fontconfig pango cairo glib libxml2 atk gtk2
-    gdk_pixbuf libGL ncurses5
+    gdk-pixbuf libGL ncurses5
   ];
 
   buildPhase = ''
@@ -70,7 +70,7 @@ stdenv.mkDerivation rec {
     maintainers = [ maintainers.gnidorah ];
     platforms = ["x86_64-linux"];
     longDescription = ''
-      A clone of IRIX Interactive Desktop made in agreement with SGI. 
+      A clone of IRIX Interactive Desktop made in agreement with SGI.
       Provides simple and fast retro desktop environment.
     '';
   };
diff --git a/pkgs/desktops/xfce/core/tumbler.nix b/pkgs/desktops/xfce/core/tumbler.nix
index 3e1d2be2b531..9087d3a02553 100644
--- a/pkgs/desktops/xfce/core/tumbler.nix
+++ b/pkgs/desktops/xfce/core/tumbler.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, intltool, dbus-glib, gdk_pixbuf, curl, freetype
+{ stdenv, fetchurl, pkgconfig, intltool, dbus-glib, gdk-pixbuf, curl, freetype
 , libgsf, poppler, bzip2 }:
 let
   p_name  = "tumbler";
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [
-    intltool dbus-glib gdk_pixbuf curl freetype
+    intltool dbus-glib gdk-pixbuf curl freetype
     poppler libgsf bzip2
   ];
 
diff --git a/pkgs/desktops/xfce4-14/thunar/default.nix b/pkgs/desktops/xfce4-14/thunar/default.nix
index e559505aca65..27fe256490a1 100644
--- a/pkgs/desktops/xfce4-14/thunar/default.nix
+++ b/pkgs/desktops/xfce4-14/thunar/default.nix
@@ -1,4 +1,4 @@
-{ mkXfceDerivation, docbook_xsl, exo, gdk_pixbuf, gtk3, libgudev ? null
+{ mkXfceDerivation, docbook_xsl, exo, gdk-pixbuf, gtk3, libgudev ? null
 , libnotify ? null, libX11, libxfce4ui, libxfce4util, libxslt, xfconf }:
 
 mkXfceDerivation rec {
@@ -19,7 +19,7 @@ mkXfceDerivation rec {
 
   buildInputs = [
     exo
-    gdk_pixbuf
+    gdk-pixbuf
     gtk3
     libgudev
     libnotify
diff --git a/pkgs/desktops/xfce4-14/tumbler/default.nix b/pkgs/desktops/xfce4-14/tumbler/default.nix
index e67c7f1e2989..81cc0922ff35 100644
--- a/pkgs/desktops/xfce4-14/tumbler/default.nix
+++ b/pkgs/desktops/xfce4-14/tumbler/default.nix
@@ -1,4 +1,4 @@
-{ mkXfceDerivation, gdk_pixbuf ? null, ffmpegthumbnailer ? null, libgsf ? null
+{ mkXfceDerivation, gdk-pixbuf ? null, ffmpegthumbnailer ? null, libgsf ? null
 , poppler ? null }:
 
 # TODO: add libopenraw
@@ -11,5 +11,5 @@ mkXfceDerivation rec {
 
   sha256 = "1k579g8dmcfpw1vakspv6k2qkr1y1axyr8cbd0fqjhqdj4pis81i";
 
-  buildInputs = [ gdk_pixbuf ffmpegthumbnailer libgsf poppler ];
+  buildInputs = [ gdk-pixbuf ffmpegthumbnailer libgsf poppler ];
 }