-# if test $1 = "-d"; then
-# if existence texi2mdoc; then
-# echo "texi2mdoc: exists, pass --enable-texi2mdoc-generation to configure"
-# else
-# dir=$(dirname "$(readlink -f -- "$0")")
-# mkdir -p $dir/contrib/vendored
-# cd contrib/vendored
-# if existence curl; then
-# curl --output texi2mdoc-0.1.2.tgz https://mandoc.bsd.lv/texi2mdoc/snapshots/texi2mdoc-0.1.2.tgz
-# elif existence wget; then
-# wget https://mandoc.bsd.lv/texi2mdoc/snapshots/texi2mdoc-0.1.2.tgz
-# elif existence ftp; then
-# ftp https://mandoc.bsd.lv/texi2mdoc/snapshots/texi2mdoc-0.1.2.tgz
-# elif existence fetch; then
-# fetch https://mandoc.bsd.lv/texi2mdoc/snapshots/texi2mdoc-0.1.2.tgz
-# else
-# echo "skipping texi2mdoc build, no ftp or curl or wget or fetch found"
-# fi
-# if test -e texi2mdoc-0.1.2.tgz; then
-# tar xzf texi2mdoc-0.1.2.tgz
-# cd texi2mdoc-0.1.2
-# dir=$(dirname "$(readlink -f -- "$0")")
-# make
-# echo "please prepend or append $dir/contrib/vendored/texi2mdoc/ to your PATH before running configure"
-# echo "and pass --enable-texi2mdoc-generation to configure"
-# else
-# echo "no texi2mdoc, skipping"
-# fi
-# fi
-# fi