kde3: use meta.platforms

svn path=/nixpkgs/trunk/; revision=29596

pkgs/applications/editors/kile/default.nix

@@ -17,5 +17,6 @@ stdenv.mkDerivation {
     description = "An integrated LaTeX editor for KDE";
     homepage = http://kile.sourceforge.net;
     license = "GPLv2";
+    platforms = stdenv.lib.platforms.linux;
   };
 }

pkgs/applications/misc/k3b/1.0.nix

@@ -15,5 +15,6 @@ stdenv.mkDerivation {
   meta = {
     description = "A CD and DVD authoring application for KDE";
     homepage = http://www.k3b.org/;
+    platforms = stdenv.lib.platforms.linux;
   };
 }

pkgs/desktops/kde-3/kdebase/default.nix

@@ -52,4 +52,6 @@ stdenv.mkDerivation {
 
   # Work around some inexplicable build failure starting in kdebase 3.5.9.
   LDFLAGS = "-L${kdelibs}/lib";
+
+  meta.platforms = stdenv.lib.platforms.linux;
 }

pkgs/desktops/kde-3/kdelibs/default.nix

@@ -49,4 +49,6 @@ stdenv.mkDerivation {
     --x-includes=${xlibs.libX11}/include
     --x-libraries=${xlibs.libX11}/lib
   '';
+
+  meta.platforms = stdenv.lib.platforms.linux;
 }

pkgs/top-level/release.nix

@@ -436,13 +436,6 @@ with (import ./release-lib.nix);
   };
   */
 
-  kde3 = {
-    kdebase = linux;
-    kdelibs = linux;
-    k3b = linux;
-    kile = linux;
-  };
-
   linuxPackages_2_6_25 = {
     aufs = linux;
     kernel = linux;