Oops, forgot to add INSTALL and DEINSTALL scripts.

xmonad/DEINSTALL

@@ -0,0 +1,7 @@
+PKGVERSION=@PKGVERSION@
+
+case ${STAGE} in 
+    POST-DEINSTALL)
+    ghc-pkg unregister xmonad-${PKGVERSION}
+    ;;
+esac

xmonad/INSTALL

@@ -0,0 +1,46 @@
+PREFIX=@PREFIX@
+PKGVERSION=@PKGVERSION@
+GHCVERSION=@GHCVERSION@
+
+case ${STAGE} in
+    POST-INSTALL)
+        echo 'name: xmonad
+version: ${PKGVERSION}
+license: BSD3
+copyright:
+maintainer: xmonad@haskell.org
+stability:
+homepage: http://xmonad.org
+package-url:
+description: xmonad is a tiling window manager for X. Windows are arranged
+             automatically to tile the screen without gaps or overlap, maximising
+             screen use. All features of the window manager are accessible from
+             the keyboard: a mouse is strictly optional. xmonad is written and
+             extensible in Haskell. Custom layout algorithms, and other
+             extensions, may be written by the user in config files. Layouts are
+             applied dynamically, and different layouts may be used on each
+             workspace. Xinerama is fully supported, allowing windows to be tiled
+             on several screens.
+category: System
+author: Spencer Janssen
+exposed: True
+exposed-modules: XMonad XMonad.Main XMonad.Core XMonad.Config
+                 XMonad.Layout XMonad.ManageHook XMonad.Operations XMonad.StackSet
+hidden-modules:
+import-dirs: ${PREFIX}/lib/xmonad-${PKGVERSION}/ghc-${GHCVERSION}
+library-dirs: ${PREFIX}/lib/xmonad-${PKGVERSION}/ghc-${GHCVERSION}
+hs-libraries: HSxmonad-${PKGVERSION}
+extra-libraries:
+extra-ghci-libraries:
+include-dirs:
+includes:
+depends: base-2.1.1 X11-1.4.0 mtl-1.0.1 unix-2.1
+hugs-options:
+cc-options:
+ld-options:
+framework-dirs:
+frameworks:
+haddock-interfaces: ${PREFIX}/share/doc/xmonad-${PKGVERSION}/html/xmonad.haddock
+haddock-html: ${PREFIX}/share/doc/xmonad-${PKGVERSION}/html' | ${PREFIX}/bin/ghc-pkg update -
+           ;;
+esac