Index: .fossil-settings/ignore-glob
==================================================================
--- .fossil-settings/ignore-glob
+++ .fossil-settings/ignore-glob
@@ -2,10 +2,11 @@
 nano.o
 randombytes.o
 blake2b.o
 tweetnacl.o
 nano.syms
+nano.vers
 nano.tcl.h
 Makefile
 pkgIndex.tcl-shared
 pkgIndex.tcl-static
 pkgIndex.tcl

Index: Makefile.in
==================================================================
--- Makefile.in
+++ Makefile.in
@@ -71,9 +71,11 @@
 	rm -f config.log config.status
 	rm -f nano.tcl.h nano.tcl.h.new.1 nano.tcl.h.new.2
 
 mrproper: distclean
 	rm -f configure aclocal.m4 config.guess config.sub install-sh
+	rm -f nano.vers
 	rm -rf tweetnacl blake2b
-	rm -rf build/tweetnacl/out build/blake2b/out
+	$(MAKE) -C build/tweetnacl distclean
+	$(MAKE) -C build/blake2b distclean
 
 .PHONY: all test clean distclean mrproper

Index: autogen.sh
==================================================================
--- autogen.sh
+++ autogen.sh
@@ -1,6 +1,8 @@
 #! /usr/bin/env bash
+
+set -e
 
 update='0'
 if [ "$1" = '-update' ]; then
 	update='1'
 fi
@@ -30,11 +32,11 @@
 	exit 1
 fi
 
 cd "$(dirname "$(which "$0")")" || exit 1
 
-mkdir aclocal >/dev/null 2>/dev/null
+mkdir aclocal >/dev/null 2>/dev/null || :
 
 files=()
 
 for url in "${urls[@]}"; do
 	file="aclocal/$(echo "${url}" | sed 's@^.*/@@')"
@@ -65,24 +67,34 @@
 	rm -f aclocal.m4.new
 else
 	mv aclocal.m4.new aclocal.m4
 fi
 
-automake --add-missing --copy --force-missing >/dev/null 2>/dev/null
+automake --add-missing --copy --force-missing >/dev/null 2>/dev/null || :
 if ! [ -f install-sh -o -f install.sh -o -f shtool ]; then
 	echo "automake failed" >&2
 	exit 1
 fi
 
 autoconf
 
 rm -rf autom4te.cache
 
-set -e
-
 # Assemble tweetnacl
 rm -rf tweetnacl
 make -C build/tweetnacl install PREFIX="$(pwd)/tweetnacl"
 
 # Assemble blake2b
 rm -rf blake2b
 make -C build/blake2b install PREFIX="$(pwd)/blake2b"
+
+# Assemble version script
+rm -f nano.vers
+(
+	echo '{'
+	echo $'\tglobal:'
+	sed 's/@SYMPREFIX@/\t\t/g;s/$/;/' nano.syms.in
+	echo $'\tlocal:'
+	echo $'\t\t*;'
+	echo '};'
+) > nano.vers
+

DELETED nano.vers
Index: nano.vers
==================================================================
--- nano.vers
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-	global:
-		Nano_Init;
-	local:
-		*;
-};