kde4: Eliminate dev outputs from the closure

Obviously there are more improvements that can be done here,
especially moving headers to .dev, but that's not entirely trivial and
probably not worth it since kde4 is old.

pkgs/desktops/kde-4.14/kactivities.nix

@@ -7,6 +7,12 @@ kde {
     sha256 = "12l9brpq8mr9hqqmnlz9xfsfr8ry6283b32nfqfx0p3f7w19vjy7";
   };
 
+  outputs = [ "out" "dev" ];
+
+  outputInclude = "out";
+
+  setOutputFlags = false;
+
   propagatedBuildInputs = [ kdelibs nepomuk_core ];
 
   meta = {

pkgs/desktops/kde-4.14/kdepimlibs.nix

@@ -5,6 +5,12 @@
 }:
 
 kde {
+  outputs = [ "out" "dev" ];
+
+  outputInclude = "out";
+
+  setOutputFlags = false;
+
   nativeBuildInputs = [ automoc4 cmake perl pkgconfig ];
 
   cmakeFlags = [

pkgs/desktops/kde-5/applications/kdelibs/default.nix

@@ -9,7 +9,11 @@
 kdeApp {
   name = "kdelibs";
 
-  outputs = [ "out" ];
+  outputs = [ "out" "dev" ];
+
+  outputInclude = "out";
+
+  setOutputFlags = false;
 
   nativeBuildInputs = [
     automoc4 bison cmake flex libxslt perl pkgconfig shared_mime_info