diff --git a/build-aux/GNUmakefile.in b/build-aux/GNUmakefile.in
index 9df74a3e..8e3d412d 100644
--- a/build-aux/GNUmakefile.in
+++ b/build-aux/GNUmakefile.in
@@ -33,7 +33,6 @@ include .config.make
 endif
 
 PHONY_TARGETS:=\
- src/mes\
  TAGS\
  all-go\
  all\
@@ -76,11 +75,15 @@ PHONY_TARGETS:=\
 
 default: all
 
-all: build doc
+all: doc
+
+doc: build
 
 build:
 	./build.sh
 
+src/mes: build
+
 gcc:
 	${srcdest}build-aux/build-cc.sh
 
@@ -133,7 +136,7 @@ check:
 installcheck:
 	true
 
-install: src/mes
+install:
 	./install.sh
 
 uninstall:
@@ -156,7 +159,7 @@ endif
            $(MESCC_TOOLS_SEED)/libs
 	cd $(MESCC_TOOLS_SEED) && MES_PREFIX=$(PWD) ./bootstrap.sh
 
-doc/version.texi: doc/mes.texi GNUmakefile
+doc/version.texi: ${srcdest}doc/mes.texi GNUmakefile
 	@mkdir -p $(@D)
 	(set `LANG= date -r $< +'%d %B %Y'`;\
 	echo "@set UPDATED $$1 $$2 $$3"; \
@@ -206,12 +209,19 @@ endif
 
 man: doc/mes.1 doc/mescc.1
 
-src/mes: build
+# disable builtin-rules
+%.o: %.s
+%.s: %.S
+%.o: %.S
+%.o: %.c
+%: %.S
+%: %.o
+%: %.c
 
-doc/mes.1: src/mes
+doc/mes.1: src/mes | build
 	MES_ARENA=10000000 ./pre-inst-env $(HELP2MAN) $(<F) > $@
 
-doc/mescc.1: src/mes scripts/mescc
+doc/mescc.1: src/mes scripts/mescc | build
 	MES_ARENA=10000000 ./pre-inst-env $(HELP2MAN) $(<F) > $@
 
 html: doc/html/index.html
@@ -240,7 +250,7 @@ WEB_IMAGES:=\
  doc/images/gcc-mesboot-graph.png
 
 web: info $(WEB_IMAGES)
-	GENDOCS_TEMPLATE_DIR=doc build-aux/gendocs.sh -I doc -s doc/mes.texi -o doc/web/manual --email bug-mes@gnu.org mes "GNU Mes manual"
+	GENDOCS_TEMPLATE_DIR=doc build-aux/gendocs.sh -I doc -s ${srcdest}doc/mes.texi -o doc/web/manual --email bug-mes@gnu.org mes "GNU Mes manual"
 
 ###  dist
 COMMIT=$(shell test -d ${srcdest}.git && (cd ${srcdir} && git describe --dirty 2>/dev/null) || cat ${srcdest}.tarball-version)
@@ -293,6 +303,19 @@ endif
 release: update-hash
 	./pre-inst-env $(GUIX) build mes@$(VERSION) --with-source=$(TARBALL)
 
+GPG_KEY_ID:=1A858392E331EAFDB8C27FFBF3C1A0D9C1D65273
+gen-announce:
+	../gnulib/build-aux/announce-gen\
+	    --release-type=alpha\
+	    --package-name=mes\
+	    --previous-version='0.16 '\
+            --current-version=$(VERSION)\
+	    --gpg-key-id=$(GPG_KEY_ID)\
+	    --url-directory=https://alpha.gnu.org/gnu/mes\
+	    --news=NEWS\
+            > doc/announce/ANNOUNCE-$(VERSION)-
+
+
 installdirs: mkinstalldirs
 	mkdir -p\
 	    $(DESTDIR)$(bindir)\
diff --git a/build-aux/install.sh.in b/build-aux/install.sh.in
index bd583522..cb4639cc 100755
--- a/build-aux/install.sh.in
+++ b/build-aux/install.sh.in
@@ -43,14 +43,14 @@ if [ -z "$GUILE" -o "$GUILE" = true ]; then
 else
     GUILE_EFFECTIVE_VERSION=${GUILE_EFFECTIVE_VERSION-$(guile -c '(display (effective-version))')}
 fi
-bindir=${bindir-$prefix/bin}
-datadir=${datadir-$prefix/share}
-docdir=${docdir-$datadir/doc/mes-$VERSION}
-infodir=${infodir-$datadir/info}
-mandir=${mandir-$datadir/man}
-moduledir=${moduledir-$datadir/mes/module}
-guile_site_dir=${guile_site_dir-$prefix/share/guile/site/$GUILE_EFFECTIVE_VERSION}
-guile_site_ccache_dir=${guile_site_ccache_dir-$prefix/lib/guile/$GUILE_EFFECTIVE_VERSION/site-ccache}
+bindir=$(eval echo ${bindir-$prefix/bin})
+datadir=$(eval echo ${datadir-$prefix/share})
+docdir=$(eval echo ${docdir-$datadir/doc/mes-$VERSION})
+infodir=$(eval echo ${infodir-$datadir/info})
+mandir=$(eval echo ${mandir-$datadir/man})
+moduledir=$(eval echo ${moduledir-$datadir/mes/module})
+guile_site_dir=$(eval echo ${guile_site_dir-$prefix/share/guile/site/$GUILE_EFFECTIVE_VERSION})
+guile_site_ccache_dir=$(eval echo ${guile_site_ccache_dir-$prefix/lib/guile/$GUILE_EFFECTIVE_VERSION/site-ccache})
 
 mkdir -p $DESTDIR$bindir
 cp src/mes $DESTDIR$bindir/mes
@@ -95,7 +95,7 @@ mkdir -p $DESTDIR$MES_PREFIX
 if [ -z "$srcdest" ]; then
     tar -cf- include lib | tar -xf- -C $DESTDIR$MES_PREFIX
     tar -cf- --exclude='*.go' module | tar -xf- -C $DESTDIR$MES_PREFIX
-    tar -cf- scaffold --exclude='*.gcc*' --exclude='*.mes*' | tar -xf- -C $DESTDIR$MES_PREFIX
+    tar -cf- --exclude='*.gcc*' --exclude='*.mes*' scaffold | tar -xf- -C $DESTDIR$MES_PREFIX
 else
     tar -cf- -C ${srcdest} include lib | tar -xf- -C $DESTDIR$MES_PREFIX
     tar -cf- -C lib | tar -xf- -C $DESTDIR$MES_PREFIX
diff --git a/configure b/configure
index 2e9ba9e5..fbb24291 100755
--- a/configure
+++ b/configure
@@ -305,11 +305,12 @@ Some influential environment variables:
          (mandir (option-ref options 'infodir "${prefix}/share/man"))
          (sysconfdir (option-ref options 'sysconfdir "${prefix}/etc"))
 
-         (bindir (option-ref options 'bindir "${prefix}/etc"))
+         (bindir (option-ref options 'bindir "${prefix}/bin"))
          (datadir (option-ref options 'datadir "${prefix}/share"))
          (docdir (option-ref options 'docdir "${datadir}/doc/mes-${VERSION}"))
          (libdir (option-ref options 'libdir "${prefix}/lib"))
          (moduledir "${datadir}/mes/module")
+         (moduledir/ (gulp-pipe (string-append "echo " prefix "/share/mes/module/")))
          (guile-effective-version (effective-version))
          (guile-site-dir (if (equal? prefix ".") (canonicalize-path ".")
                              (string-append "${prefix}/share/guile/site/" guile-effective-version)))
@@ -475,7 +476,7 @@ Some influential environment variables:
                      ("@guile_site_dir@" . ,guile-site-dir)
                      ("@guile_site_ccache_dir@" . ,guile-site-ccache-dir)
                      ("@VERSION@" . ,VERSION)
-                     ("mes/module/" . ,(string-append moduledir "/")))))
+                     ("mes/module/" . ,(string-append moduledir/)))))
         (for-each (lambda (o)
                     (let* ((src (string-append srcdest o))
                            (target (string-drop-right o 3))
diff --git a/configure.sh b/configure.sh
index 76d44cdc..3918c2e3 100755
--- a/configure.sh
+++ b/configure.sh
@@ -52,13 +52,14 @@ if [ -z "$GUILE" -o "$GUILE" = true ]; then
 else
     GUILE_EFFECTIVE_VERSION=${GUILE_EFFECTIVE_VERSION-$(guile -c '(display (effective-version))')}
 fi
-datadir=${datadir-$prefix/share}
-docdir=${docdir-$datadir/doc/mes-$VERSION}
-infodir=${infodir-$datadir/info}
-mandir=${mandir-$datadir/man}
-moduledir=${moduledir-$datadir/mes/module}
-guile_site_dir=${guile_site_dir-$prefix/share/guile/site/$GUILE_EFFECTIVE_VERSION}
-guile_site_ccache_dir=${guile_site_ccache_dir-$prefix/lib/guile/$GUILE_EFFECTIVE_VERSION/site-ccache}
+datadir=$(eval echo ${datadir-$prefix/share})
+docdir=$(eval echo ${docdir-$datadir/doc/mes-$VERSION})
+infodir=$(eval echo ${infodir-$datadir/info})
+mandir=$(eval echo ${mandir-$datadir/man})
+moduledir=$(eval echo ${moduledir-$datadir/mes/module})
+moduledir_="$moduledir/"
+guile_site_dir=$(eval echo ${guile_site_dir-$prefix/share/guile/site/$GUILE_EFFECTIVE_VERSION})
+guile_site_ccache_dir=$(eval echo ${guile_site_ccache_dir-$prefix/lib/guile/$GUILE_EFFECTIVE_VERSION/site-ccache})
 
 subst () {
     sed \
@@ -73,7 +74,7 @@ subst () {
     -e s,"@guile_site_dir@,$guile_site_dir,"\
     -e s,"@guile_site_ccache_dir@,$guile_site_ccache_dir,"\
     -e s,"@VERSION@,$VERSION,"\
-    -e s,"mes/module/,$moduledir,"\
+    -e s,"mes/module/,$moduledir/,"\
     $1 > $2
 }