gnu: Add krdc.

VNC support is yet missing since I did not find the required VNC packages.

* gnu/packages/kde-internet.scm (krdc): New variable.

gnu/packages/kde-internet.scm

@@ -36,7 +36,9 @@
   #:use-module (gnu packages messaging)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages qt)
+  #:use-module (gnu packages rdesktop)
   #:use-module (gnu packages serialization)
+  #:use-module (gnu packages ssh)
   #:use-module (gnu packages telephony)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages video)
@@ -317,3 +319,48 @@ from other KDE applications.
 This package is part of the KDE networking module.")
     (license ;; GPL for programs, LGPL for libraries, FDL for documentation
      (list license:gpl2+ license:lgpl2.0+ license:fdl1.2+))))
+
+(define-public krdc
+  (package
+    (name "krdc")
+    (version "19.08.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://kde/stable/applications/" version
+                           "/src/krdc-" version ".tar.xz"))
+       (sha256
+        (base32 "1p6g994whzjz9aarzrblh70xzs3jvygd1898qxgfymndlfxaxjyl"))))
+    (build-system qt-build-system)
+    (native-inputs
+     `(("extra-cmake-modules" ,extra-cmake-modules)
+       ("kdoctools" ,kdoctools)))
+    (inputs
+     `(("kbookmarks" ,kbookmarks)
+       ("freerdp" ,freerdp)
+       ("kcmutils" ,kcmutils)
+       ("kcompletion" ,kcompletion)
+       ("kconfig" ,kconfig)
+       ("kdnssd" ,kdnssd)
+       ("ki18n" ,ki18n)
+       ("kiconthemes" ,kiconthemes)
+       ("knotifications" ,knotifications)
+       ("knotifyconfig" ,knotifyconfig)
+       ("knotifyconfig" ,knotifyconfig)
+       ("kwallet" ,kwallet)
+       ("kwidgetsaddons" ,kwidgetsaddons)
+       ("kwindowsystem" ,kwindowsystem)
+       ("kxmlgui" ,kxmlgui)
+       ("libssh2" ,libssh)
+       ;; TODO: libvnc{server,client} - is not tigervnc-{server,client}
+       ("oxygen-icons" ,oxygen-icons) ; default icon set
+       ("qtbase" ,qtbase)))
+    (home-page "https://kde.org/applications/internet/org.kde.krdc")
+    (synopsis "Remote desktop client")
+    (description "KRDC is a client application that allows you to view or even
+control the desktop session on another machine that is running a compatible
+server.  VNC and RDP are supported.
+
+This package is part of the KDE networking module.")
+    (license ;; GPL for programs, LGPL for libraries, FDL for documentation
+     (list license:gpl2+ license:lgpl2.0+ license:fdl1.2+))))