+#! /bin/sh
+
+# This test script validates all *.html files as XHTML.
+
+set -eu
+e=0
+fail=
+IFS=$(printf '\n\t')
+
+# smoke test validator for XHTML 1.0 Transitional, and skip if it fails
+cat - <<'_EOF' | xmllint 2>/dev/null --nonet --postvalid --noout - || exit 77
+<?xml version="1.0" encoding="US-ASCII"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head><title /></head><body></body></html>
+_EOF
+
+for i in "${srcdir}"/*.html ; do
+ case "$i" in
+ */fetchmail-man.html) continue ;;
+ */Mailbox-Names-UTF7.html) continue ;;
+ esac
+ xmllint --postvalid --noout "$i" || { e=1 ; fail="$i${fail:+" "}$fail" ; }
+done
+if [ $e != 0 ] ; then
+ echo >&2 ">>>>> Invalid XHTML in files: ${fail}."
+fi
+exit $e