diff -Nru haskell-devscripts-0.8.9ubuntu1/debian/changelog haskell-devscripts-0.8.12ubuntu1/debian/changelog
--- haskell-devscripts-0.8.9ubuntu1/debian/changelog	2011-11-17 06:59:24.000000000 +0000
+++ haskell-devscripts-0.8.12ubuntu1/debian/changelog	2012-03-10 17:08:45.000000000 +0000
@@ -1,3 +1,34 @@
+haskell-devscripts (0.8.12ubuntu1) precise; urgency=low
+
+  * Merge with Debian; remaining changes:
+    - dh_haskell_shlibdeps: If the test object doesn't have any unresolved
+      symbols from libffi or libgmp, remove the dependencies on libffi and
+      libgmp.
+
+ -- Iain Lane <laney@ubuntu.com>  Sat, 10 Mar 2012 17:08:13 +0000
+
+haskell-devscripts (0.8.12) unstable; urgency=low
+
+  * Depend on ghc >= 7.4, adjusting to its haddock --interface-version
+    behaviour. 
+
+ -- Joachim Breitner <nomeata@debian.org>  Sat, 04 Feb 2012 10:50:33 +0100
+
+haskell-devscripts (0.8.11) unstable; urgency=low
+
+  * Conflict with ghc >= 7.4; as haddock --interface-name behaves differently
+    then. A new haskell-devscripts upload will happen when ghc-7.4 enters
+    unstable.
+
+ -- Joachim Breitner <nomeata@debian.org>  Thu, 05 Jan 2012 13:28:23 +0100
+
+haskell-devscripts (0.8.10) unstable; urgency=low
+
+  * Run Cabal-defined testsuites, if DEB_ENABLE_TESTS = yes is set in
+    debian/rules.
+
+ -- Joachim Breitner <nomeata@debian.org>  Wed, 04 Jan 2012 20:13:14 +0100
+
 haskell-devscripts (0.8.9ubuntu1) precise; urgency=low
 
   * Merge with Debian; remaining changes:
diff -Nru haskell-devscripts-0.8.9ubuntu1/debian/control haskell-devscripts-0.8.12ubuntu1/debian/control
--- haskell-devscripts-0.8.9ubuntu1/debian/control	2011-07-30 10:21:20.000000000 +0000
+++ haskell-devscripts-0.8.12ubuntu1/debian/control	2012-03-10 17:07:37.000000000 +0000
@@ -14,12 +14,12 @@
 Depends: dctrl-tools
   , debhelper
   , dh-buildinfo
-  , ghc (>= 7.0.4-3)
+  , ghc (>= 7.4)
   , cdbs
   , ${misc:Depends}
   , html-xml-utils
   , hscolour (>= 1.8)
-  , ghc-haddock (>= 7.0.2-5)
+  , ghc-haddock (>= 7.4)
 Description: Tools to help Debian developers build Haskell packages
  This package provides a collection of scripts to help build Haskell
  packages for Debian.  Unlike haskell-utils, this package is not
diff -Nru haskell-devscripts-0.8.9ubuntu1/dh_haskell_depends haskell-devscripts-0.8.12ubuntu1/dh_haskell_depends
--- haskell-devscripts-0.8.9ubuntu1/dh_haskell_depends	2011-07-30 10:21:03.000000000 +0000
+++ haskell-devscripts-0.8.12ubuntu1/dh_haskell_depends	2012-03-10 17:07:37.000000000 +0000
@@ -124,7 +124,7 @@
                 -e ^haskell:Recommends \
                 -e ^haskell:Suggests \
                 $sfile > $sfile.tmp || true
-	    depends=`haddock --interface-version`
+	    depends=haddock-interface-`haddock --interface-version`
             echo "haskell:Depends=$depends" >> $sfile.tmp
             recommends=` \
                 find debian/$pkg -name \*.html -exec hxwls -r \{\} \; \
diff -Nru haskell-devscripts-0.8.9ubuntu1/hlibrary.mk haskell-devscripts-0.8.12ubuntu1/hlibrary.mk
--- haskell-devscripts-0.8.9ubuntu1/hlibrary.mk	2011-09-04 17:24:28.000000000 +0000
+++ haskell-devscripts-0.8.12ubuntu1/hlibrary.mk	2012-03-10 17:07:37.000000000 +0000
@@ -30,6 +30,8 @@
 CABAL_PACKAGE=$(DEB_CABAL_PACKAGE)
 CABAL_VERSION=$(shell cat *.cabal | egrep -i '^\s*version:' | head -n1 | sed -r 's,^\s*version:\s*,,i'| sed -r 's,\s*$$,,i')
 
+DEB_ENABLE_TESTS ?= no
+
 ENABLE_PROFILING = $(shell egrep -qe '^Package: libghc-.*-prof$$' debian/control && echo --enable-library-profiling; exit 0)
 
 NO_GHCI_FLAG = $(shell test -e /usr/bin/ghci || echo --ghc-option=-DDEBIAN_NO_GHCI; exit 0)
@@ -54,8 +56,6 @@
 DEB_HADDOCK_OPTS += --hyperlink-source
 endif
 
-BUILD_GHC := $(DEB_SETUP_BIN_NAME) build
-BUILD_GHC6 := $(DEB_SETUP_BIN_NAME) build
 MAKEFILE := debian/hlibrary.Makefile
 
 #ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
@@ -68,6 +68,12 @@
    OPTIMIZATION = --disable-optimization
 endif
 
+ifeq ($(DEB_ENABLE_TESTS),yes)
+ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
+   TESTS = --enable-tests
+endif
+endif
+
 DEB_BUILD_DEPENDENCIES = build-arch
 
 clean::
@@ -89,13 +95,29 @@
 		--builddir=dist-ghc \
 		--haddockdir=$(DEB_HADDOCK_DIR) \
 		--htmldir=$(DEB_HADDOCK_HTML_DIR) $(ENABLE_PROFILING) $(NO_GHCI_FLAG) \
-		$(DEB_SETUP_GHC6_CONFIGURE_ARGS) $(DEB_SETUP_GHC_CONFIGURE_ARGS) $(OPTIMIZATION)
+		$(DEB_SETUP_GHC6_CONFIGURE_ARGS) $(DEB_SETUP_GHC_CONFIGURE_ARGS) $(OPTIMIZATION) $(TESTS)
 
 build-ghc-stamp: dist-ghc
-	$(BUILD_GHC) --builddir=dist-ghc
-	touch build-ghc-stamp
+	$(DEB_SETUP_BIN_NAME) build --builddir=dist-ghc
+	touch $@
+
+ifeq ($(DEB_ENABLE_TESTS),yes)
+ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
+check-ghc-stamp: build-ghc-stamp
+	$(DEB_SETUP_BIN_NAME) test --builddir=dist-ghc
+	touch $@
+else
+check-ghc-stamp: build-ghc-stamp
+	@echo DEB_BUILD_OPTIONS contains nocheck, not running checks
+	touch $@
+endif
+else
+check-ghc-stamp: build-ghc-stamp
+	@echo DEB_ENABLE_TESTS not set to yes, not running any tests.
+	touch $@
+endif
 
-build/libghc-$(CABAL_PACKAGE)-prof build/libghc-$(CABAL_PACKAGE)-dev:: build-ghc-stamp
+build/libghc-$(CABAL_PACKAGE)-prof build/libghc-$(CABAL_PACKAGE)-dev:: build-ghc-stamp check-ghc-stamp
 
 build-haddock-stamp:
 	[ ! -x /usr/bin/haddock ] || $(DEB_SETUP_BIN_NAME) haddock --builddir=dist-ghc $(DEB_HADDOCK_OPTS)