#! /bin/sh

if glibtoolize --version >/dev/null 2>&1; then

  LIBTOOLIZE='glibtoolize'

else

  LIBTOOLIZE='libtoolize'

fi

command -v command >/dev/null 2>&1 || {

  echo "command is required, but wasn't found on this system"

  exit 1

}

command -v $LIBTOOLIZE >/dev/null 2>&1 || {

  echo "libtool is required, but wasn't found on this system"

  exit 1

}

command -v autoconf >/dev/null 2>&1 || {

  echo "autoconf is required, but wasn't found on this system"

  exit 1

}

command -v automake >/dev/null 2>&1 || {

  echo "automake is required, but wasn't found on this system"

  exit 1

}

if autoreconf --version >/dev/null 2>&1; then

  autoreconf -ivf

else

  $LIBTOOLIZE &&

    aclocal &&

    automake --add-missing --force-missing --include-deps &&

    autoconf

fi

[ -z "$DO_NOT_UPDATE_CONFIG_SCRIPTS" ] &&

  command -v curl >/dev/null 2>&1 && {

  echo "Downloading config.guess and config.sub..."

  curl -sL -o config.guess \

    'https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD' &&

    mv -f config.guess build-aux/config.guess

  curl -sL -o config.sub \

    'https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD' &&

    mv -f config.sub build-aux/config.sub

  echo "Done."

}

rm -f config.guess config.sub