diff --git a/Makefile.am b/Makefile.am
index 8c191b18..7dcf2f32 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,141 +1,141 @@
 # Makefile.am - Top level Makefile for GPGME.
 # Copyright (C) 2000 Werner Koch (dd9jn)
 # Copyright (C) 2001, 2002, 2004, 2005, 2008, 2009 g10 Code GmbH
 #
 # This file is part of GPGME.
 #
 # GPGME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU Lesser General Public License as
 # published by the Free Software Foundation; either version 2.1 of the
 # License, or (at your option) any later version.
 #
 # GPGME is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General
 # Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
 # License along with this program; if not, see <https://gnu.org/licenses/>.
 # SPDX-License-Identifier: LGPL-2.1-or-later
 
 ## Process this file with automake to produce Makefile.in
 
 # Location of the released tarball archives.  This is prefixed by
 # the variable RELEASE_ARCHIVE in ~/.gnupg-autogen.rc.  For example:
 # RELEASE_ARCHIVE=user@host:archive/tarballs
 RELEASE_ARCHIVE_SUFFIX = gpgme
 # The variable RELEASE_SIGNKEY in ~/.gnupg-autogen.rc is used
 # to specify the key for signing.  For example:
 # RELEASE_SIGNKEY=D8692123C4065DEA5E0F3AB5249B39D24F25E3B6
 
 
 # Autoconf flags
 ACLOCAL_AMFLAGS = -I m4
 
 DISTCHECK_CONFIGURE_FLAGS =
 
 EXTRA_DIST = autogen.sh autogen.rc gpgme.spec.in  \
              ChangeLog-2011 m4/ChangeLog-2011     \
              conf/whatisthis VERSION
 
 
 if RUN_GPG_TESTS
 tests = tests
 else
 tests =
 endif
 
 SUBDIRS = src ${tests} doc lang
 
 # Fix the version of the spec file.
 dist-hook: gen-ChangeLog
 	@set -e; \
 	sed -e 's/@pkg_version@/$(PACKAGE_VERSION)/g' \
 	    $(top_srcdir)/gpgme.spec.in  > $(distdir)/gpgme.spec
 
 distcheck-hook:
 	set -e; ( \
 	pref="#+macro: gpgme_" ;\
 	reldate="$$(date -u +%Y-%m-%d)" ;\
         echo "$${pref}ver  $(PACKAGE_VERSION)"  ;\
         echo "$${pref}date $${reldate}" ;\
         list='$(DIST_ARCHIVES)'; for i in $$list; do \
 	  case "$$i" in *.tar.bz2) \
             echo "$${pref}size $$(wc -c <$$i|awk '{print int($$1/1024)}')k" ;\
 	    echo "$${pref}sha1 $$(sha1sum <$$i|cut -d' ' -f1)" ;\
 	    echo "$${pref}sha2 $$(sha256sum <$$i|cut -d' ' -f1)" ;;\
 	  esac;\
 	done ) | tee $(distdir).swdb
 
 .PHONY: gen-ChangeLog release sign-release
 
 gen_start_date = 2011-12-01T00:00:00
 gen-ChangeLog:
 	if test -d $(top_srcdir)/.git; then				\
 	  (cd $(top_srcdir) &&                      			\
 	    $(GITLOG_TO_CHANGELOG) --append-dot --tear-off		\
 	    --amend=build-aux/git-log-fix				\
 	    --since=$(gen_start_date) ) > $(distdir)/cl-t;		\
           cat $(top_srcdir)/build-aux/git-log-footer >> $(distdir)/cl-t;\
 	  rm -f $(distdir)/ChangeLog;					\
 	  mv $(distdir)/cl-t $(distdir)/ChangeLog;			\
 	fi
 
 
 # Macro to help the release target.
 RELEASE_NAME = $(PACKAGE_TARNAME)-$(PACKAGE_VERSION)
 
 release:
 	+(set -e;\
 	 if [ "$(abs_top_builddir)" = "$(abs_top_srcdir)" ]; then \
            echo "error: build directory must not be the source directory" >&2;\
 	   exit 2;\
          fi ;\
 	 echo "/* Build started at $$(date -uIseconds) */" ;\
 	 cd $(top_srcdir); \
 	 ./autogen.sh --force; \
 	 cd $(abs_top_builddir); \
 	 rm -rf dist; mkdir dist ; cd dist ; \
 	 $(abs_top_srcdir)/configure --enable-maintainer-mode; \
-	 $(MAKE) distcheck TESTFLAGS=--parallel; \
+	 $(MAKE) distcheck; \
 	 echo "/* Build finished at $$(date -uIseconds) */" ;\
          echo "/*" ;\
 	 echo " * Please run the final step interactively:" ;\
 	 echo " *   make sign-release" ;\
 	 echo " */" ;\
 	) 2>&1 | tee "$(RELEASE_NAME).buildlog"
 
 sign-release:
 	 +(set -e; \
 	  cd dist; \
 	  x=$$(grep '^RELEASE_ARCHIVE=' $$HOME/.gnupg-autogen.rc|cut -d= -f2);\
           if [ -z "$$x" ]; then \
              echo "error: RELEASE_ARCHIVE missing in ~/.gnupg-autogen.rc">&2; \
              exit 2;\
           fi;\
           myarchive="$$x/$(RELEASE_ARCHIVE_SUFFIX)";\
 	  x=$$(grep '^RELEASE_SIGNKEY=' $$HOME/.gnupg-autogen.rc|cut -d= -f2);\
           if [ -z "$$x" ]; then \
              echo "error: RELEASE_SIGNKEY missing in ~/.gnupg-autogen.rc">&2; \
              exit 2;\
           fi;\
 	  mysignkey="$$x";\
 	  files1="$(RELEASE_NAME).tar.bz2" ;\
 	  files2="$(RELEASE_NAME).tar.bz2.sig \
 		  $(RELEASE_NAME).swdb \
 		  $(RELEASE_NAME).buildlog" ;\
 	  echo "/* Signing the source tarball ..." ;\
 	  gpg -sbu $$mysignkey $(RELEASE_NAME).tar.bz2 ;\
 	  cat $(RELEASE_NAME).swdb >swdb.snippet;\
 	  echo >>swdb.snippet ;\
 	  sha1sum $${files1} >>swdb.snippet ;\
           cat "../$(RELEASE_NAME).buildlog" swdb.snippet \
                | gzip >$(RELEASE_NAME).buildlog ;\
           echo "Copying to local archive ..." ;\
 	  scp -p $${files1} $${files2} $$myarchive/ || true;\
           echo "Uploading documentation ..." ;\
 	  $(MAKE) -C doc online; \
 	  echo '/*' ;\
 	  echo ' * All done; for checksums see dist/swdb.snippet' ;\
 	  echo ' */' ;\
          )