gnome3: only maintain single GNOME 3 package set (#29397)

* gnome3: only maintain single GNOME 3 package set

GNOME 3 was split into 3.10 and 3.12 in #2694. Unfortunately, we barely have the resources
to update a single version of GNOME. Maintaining multiple versions just does not make sense.
Additionally, it makes viewing history using most Git tools bothersome.

This commit renames `pkgs/desktops/gnome-3/3.24` to `pkgs/desktops/gnome-3`, removes
the config variable for choosing packageset (`environment.gnome3.packageSet`), updates
the hint in maintainer script, and removes the `gnome3_24` derivation from `all-packages.nix`.

Closes: #29329

* maintainers/scripts/gnome: Use fixed GNOME 3 directory

Since we now allow only a single GNOME 3 package set, specifying
the working directory is not necessary.

This commit sets the directory to `pkgs/desktops/gnome-3`.

1 files changed, 34 insertions, 0 deletions

diff --git a/pkgs/desktops/gnome-3/core/gconf/default.nix b/pkgs/desktops/gnome-3/core/gconf/default.nix
new file mode 100644
index 000000000000..1729ec066233
--- /dev/null
+++ b/pkgs/desktops/gnome-3/core/gconf/default.nix
@@ -0,0 +1,34 @@
+{ stdenv, fetchurl, pkgconfig, dbus_glib, gnome3 ? null, glib, libxml2
+, intltool, polkit, orbit, withGtk ? false }:
+
+assert withGtk -> (gnome3 != null);
+
+stdenv.mkDerivation rec {
+
+  versionMajor = "3.2";
+  versionMinor = "6";
+  moduleName   = "GConf";
+
+  origName = "${moduleName}-${versionMajor}.${versionMinor}";
+
+  name = "gconf-${versionMajor}.${versionMinor}";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/${moduleName}/${versionMajor}/${origName}.tar.xz";
+    sha256 = "0k3q9nh53yhc9qxf1zaicz4sk8p3kzq4ndjdsgpaa2db0ccbj4hr";
+  };
+
+  buildInputs = [ libxml2 polkit orbit ] ++ stdenv.lib.optional withGtk gnome3.gtk;
+  propagatedBuildInputs = [ glib dbus_glib  ];
+  nativeBuildInputs = [ pkgconfig intltool ];
+
+  # ToDo: ldap reported as not found but afterwards reported as supported
+
+  outputs = [ "out" "dev" ];
+
+  meta = with stdenv.lib; {
+    homepage = https://projects.gnome.org/gconf/;
+    description = "A system for storing application preferences";
+    platforms = platforms.linux;
+  };
+}