diff --git a/ghc-scientific.spec b/ghc-scientific.spec
index d529fc4..412c12f 100644
--- a/ghc-scientific.spec
+++ b/ghc-scientific.spec
@@ -1,33 +1,29 @@
-# generated by cabal-rpm-0.11.1
+# generated by cabal-rpm-0.12
 # https://fedoraproject.org/wiki/Packaging:Haskell
 
 %global pkg_name scientific
 %global pkgver %{pkg_name}-%{version}
 
-%global integerlogarithms integer-logarithms-1.0.1
-%global subpkgs %{integerlogarithms}
-
 %bcond_with tests
 
 Name:           ghc-%{pkg_name}
 Version:        0.3.4.10
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Numbers represented using scientific notation
 
 License:        BSD
 Url:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkgver}/%{pkgver}.tar.gz
-Source1:        https://hackage.haskell.org/package/%{integerlogarithms}/%{integerlogarithms}.tar.gz
 
 BuildRequires:  ghc-Cabal-devel
-BuildRequires:  ghc-rpm-macros-extra
+BuildRequires:  ghc-rpm-macros
 # Begin cabal-rpm deps:
 BuildRequires:  ghc-binary-devel
 BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-containers-devel
 BuildRequires:  ghc-deepseq-devel
 BuildRequires:  ghc-hashable-devel
-#BuildRequires:  ghc-integer-logarithms-devel
+BuildRequires:  ghc-integer-logarithms-devel
 BuildRequires:  ghc-text-devel
 BuildRequires:  ghc-vector-devel
 %if %{with tests}
@@ -56,35 +52,27 @@ arbitrary precision numbers coming from an untrusted source.
 %package devel
 Summary:        Haskell %{pkg_name} library development files
 Provides:       %{name}-static = %{version}-%{release}
+Provides:       %{name}-doc = %{version}-%{release}
+%if %{defined ghc_version}
 Requires:       ghc-compiler = %{ghc_version}
 Requires(post): ghc-compiler = %{ghc_version}
 Requires(postun): ghc-compiler = %{ghc_version}
+%endif
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 
 %description devel
 This package provides the Haskell %{pkg_name} library development files.
 
 
-%global main_version %{version}
-
-%if %{defined ghclibdir}
-%ghc_lib_subpackage %{integerlogarithms}
-%endif
-
-%global version %{main_version}
-
-
 %prep
-%setup -q -n %{pkgver} -a1
+%setup -q -n %{pkgver}
 
 
 %build
-%ghc_libs_build %{subpkgs}
 %ghc_lib_build
 
 
 %install
-%ghc_libs_install %{subpkgs}
 %ghc_lib_install
 
 
@@ -109,6 +97,10 @@ This package provides the Haskell %{pkg_name} library development files.
 
 
 %changelog
+* Tue Nov 21 2017 Jens Petersen <petersen@redhat.com> - 0.3.4.10-4
+- integer-logarithms is now packaged
+- update to cabal-rpm-0.12 packaging
+
 * Wed Aug 02 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.4.10-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild