diff --git a/SHA-1.6.4.1.tar.gz b/SHA-1.6.4.1.tar.gz
deleted file mode 100644
index b6e86c9..0000000
--- a/SHA-1.6.4.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:743bc6d7dd3e74a44bfca8920f0f0ba5855722a62f6cc44f0a38d10c11bddc0d
-size 2715446
diff --git a/SHA-1.6.4.2.tar.gz b/SHA-1.6.4.2.tar.gz
new file mode 100644
index 0000000..b0b38e6
--- /dev/null
+++ b/SHA-1.6.4.2.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c470176f63cbe49fd0502a1b32ef22bc01b1af42385583b8be94547750958a8c
+size 2715266
diff --git a/ghc-SHA.changes b/ghc-SHA.changes
index f787338..13f6360 100644
--- a/ghc-SHA.changes
+++ b/ghc-SHA.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Tue Apr 21 18:32:23 UTC 2015 - mimi.vx@gmail.com
+
+- disable exe flag 
+
+-------------------------------------------------------------------
+Sun Apr 19 20:56:45 UTC 2015 - mimi.vx@gmail.com
+
+- update to 1.6.4.2 
+- enable "exe" flag
+* no upstream changelog
+
 -------------------------------------------------------------------
 Sun Feb  1 20:40:48 UTC 2015 - mimi.vx@gmail.com
 
diff --git a/ghc-SHA.spec b/ghc-SHA.spec
index 70b84c1..b77e8d2 100644
--- a/ghc-SHA.spec
+++ b/ghc-SHA.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ghc-SHA
 #
-# Copyright (c) 2015 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2015 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,24 +17,31 @@
 
 %global pkg_name SHA
 
-# no useful debuginfo for Haskell packages without C sources
-%global debug_package %{nil}
+%bcond_with tests
 
-Name:           ghc-SHA
-Version:        1.6.4.1
+Name:           ghc-%{pkg_name}
+Version:        1.6.4.2
 Release:        0
 Summary:        Implementations of the SHA suite of message digest functions
-Group:          Development/Languages/Other 
+Group:          System/Libraries
+
 License:        BSD-3-Clause
-Url:            http://hackage.haskell.org/package/%{pkg_name}
-Source0:        http://hackage.haskell.org/packages/archive/%{pkg_name}/%{version}/%{pkg_name}-%{version}.tar.gz
+Url:            https://hackage.haskell.org/package/%{pkg_name}
+Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
+
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
 # Begin cabal-rpm deps:
 BuildRequires:  ghc-array-devel
 BuildRequires:  ghc-binary-devel
 BuildRequires:  ghc-bytestring-devel
+BuildRequires:  ghc-directory-devel
+%if %{with tests}
+BuildRequires:  ghc-QuickCheck-devel
+BuildRequires:  ghc-test-framework-devel
+BuildRequires:  ghc-test-framework-quickcheck2-devel
+%endif
 # End cabal-rpm deps
 
 %description
@@ -49,12 +56,14 @@ like OpenSSL.
 %package devel
 Summary:        Haskell %{pkg_name} library development files
 Group:          Development/Libraries/Other
+Requires:       ghc-compiler = %{ghc_version}
+Requires(post): ghc-compiler = %{ghc_version}
+Requires(postun): ghc-compiler = %{ghc_version}
 Requires:       %{name} = %{version}-%{release}
 
 %description devel
 This package provides the Haskell %{pkg_name} library development files.
 
-
 %prep
 %setup -q -n %{pkg_name}-%{version}
 
@@ -64,6 +73,11 @@ This package provides the Haskell %{pkg_name} library development files.
 %install
 %ghc_lib_install
 
+%check
+%if %{with tests}
+%cabal test
+%endif
+
 %post devel
 %ghc_pkg_recache