gnu: Add kblocks.

* gnu/packages/games.scm (kblocks): New variable.

gnu/packages/games.scm

@@ -8366,3 +8366,45 @@ (define-public kbounce
 
 This package is part of the KDE games module.")
     (license (list license:gpl2+ license:lgpl2.0+ license:fdl1.2+))))
+
+(define-public kblocks
+  (package
+    (name "kblocks")
+    (version "19.08.3")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "mirror://kde/stable/applications/"
+                          version "/src/kblocks-" version ".tar.xz"))
+      (sha256
+       (base32 "0qrm0dihzhkxsq9l49ndzms802x6jn92vvabb2zf2q9z593m69cx"))))
+    (properties `((tags . ("Desktop" "KDE" "Games"))))
+    (build-system qt-build-system)
+    (native-inputs
+     `(("extra-cmake-modules" ,extra-cmake-modules)
+       ("kdoctools" ,kdoctools)))
+    (inputs
+     `(("kcompletion" ,kcompletion)
+       ("kconfig" ,kconfig)
+       ("kconfigwidgets" ,kconfigwidgets)
+       ("kcoreaddons" ,kcoreaddons)
+       ("kcrash" ,kcrash)
+       ("kdbusaddons" ,kdbusaddons)
+       ("ki18n" ,ki18n)
+       ("kwidgetsaddons" ,kwidgetsaddons)
+       ("kxmlgui" ,kxmlgui)
+       ("libkdegames" ,libkdegames)
+       ("qtbase" ,qtbase)
+       ("qtdeclarative" ,qtdeclarative)
+       ("qtsvg" ,qtsvg)))
+    (home-page "https://games.kde.org/")
+    (synopsis "Single player falling blocks puzzle game")
+    (description "KBlocks is the classic Tetris-like falling blocks game.
+
+The idea is to stack the falling blocks to create horizontal lines without any
+gaps.  When a line is completed it is removed, and more space is available in
+the play area.  When there is not enough space for blocks to fall, the game is
+over.
+
+This package is part of the KDE games module.")
+    (license (list license:gpl2+ license:fdl1.2+))))