diff --git a/ghc-gtk.spec b/ghc-gtk.spec
index 6802193..f6e7c97 100644
--- a/ghc-gtk.spec
+++ b/ghc-gtk.spec
@@ -1,34 +1,37 @@
-# cabal2spec-0.25.2
 # https://fedoraproject.org/wiki/Packaging:Haskell
 # https://fedoraproject.org/wiki/PackagingDrafts/Haskell
 
 %global pkg_name gtk
 
-%global common_summary Haskell %{pkg_name} library
+%global common_summary Binding to the Gtk+ graphical user interface library
 
-%global common_description A %{pkg_name} library for Haskell.
+%global common_description This is the core library of the Gtk2Hs suite of libraries for Haskell\
+based on Gtk+. Gtk+ is an extensive and mature multi-platform toolkit\
+for creating graphical user interfaces.
 
 Name:           ghc-%{pkg_name}
 Version:        0.12.3.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        %{common_summary}
 
-Group:          System Environment/Libraries
 License:        LGPLv2+
-# BEGIN cabal2spec
 URL:            http://hackage.haskell.org/package/%{pkg_name}
 Source0:        http://hackage.haskell.org/packages/archive/%{pkg_name}/%{version}/%{pkg_name}-%{version}.tar.gz
-ExclusiveArch:  %{ghc_arches}
+
 BuildRequires:  ghc-Cabal-devel
-BuildRequires:  ghc-rpm-macros %{!?without_hscolour:hscolour}
-# END cabal2spec
-BuildRequires:  gtk2-devel%{?_isa}
-BuildRequires:  gtk2hs-buildtools
+BuildRequires:  ghc-rpm-macros
+# Begin cabal-rpm deps:
+BuildRequires:  ghc-array-devel
+BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-cairo-devel
+BuildRequires:  ghc-containers-devel
 BuildRequires:  ghc-gio-devel
 BuildRequires:  ghc-glib-devel
 BuildRequires:  ghc-mtl-devel
 BuildRequires:  ghc-pango-devel
+# End cabal-rpm deps
+BuildRequires:  gtk2-devel%{?_isa}
+BuildRequires:  gtk2hs-buildtools
 
 %description
 %{common_description}
@@ -37,6 +40,7 @@ BuildRequires:  ghc-pango-devel
 %prep
 %setup -q -n %{pkg_name}-%{version}
 
+
 %build
 %ghc_lib_build
 
@@ -64,6 +68,9 @@ Obsoletes: ghc-gtkglext-prof < 0.11, ghc-soegtk-prof < 0.11, ghc-vte-prof < 0.11
 
 
 %changelog
+* Sat Nov 17 2012 Jens Petersen <petersen@redhat.com> - 0.12.3.1-4
+- update with cabal-rpm
+
 * Thu Jul 19 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.12.3.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild