#! /bin/sh
set -x
set -e

# Check for automake
amvers="no"
for v in "-1.9" "19" "-1.8" "18" "-1.7" "17" "-1.6" "16" "-1.5" "15"; do
  if automake${v} --version >/dev/null 2>&1; then
    amvers="${v}"
    break
  fi
done

if test "${amvers}" = "no" && automake --version > /dev/null 2>&1; then
  amvers="`automake --version | sed -e '1s/[^0-9]*//' -e q`"
  if expr "$amvers" "<" "1.5" > /dev/null 2>&1; then
    amvers="no"
  else
    amvers=""
  fi
fi

if test "$amvers" = "no"; then
  set +x
  echo "$0: you need automake version 1.5 or later"
  exit 1
fi

# Check for autoconf
acvers="no"
for v in "" "259" "253"; do
  if autoconf${v} --version >/dev/null 2>&1; then
    acvers="${v}"
    break
  fi
done

if test "$acvers" = "no"; then
  set +x
  echo "$0: you need autoconf"
  exit 1
fi

# Check for libtool
libtoolize="no"
if glibtoolize --version >/dev/null 2>&1; then
  libtoolize="glibtoolize"
else
  for v in "16" "15" "" "14"; do
    if libtoolize${v} --version >/dev/null 2>&1; then
      libtoolize="libtoolize${v}"
      break
    fi
  done
fi

if test "$libtoolize" = "no"; then
  set +x
  echo "$0: you need libtool"
  exit 1
fi

# Remove old cruft
set +x; for x in aclocal.m4 configure config.guess config.log config.sub config.cache config.h.in config.h compile libtool.m4 ltoptions.m4 ltsugar.m4 ltversion.m4 ltmain.sh libtool ltconfig missing mkinstalldirs depcomp install-sh; do rm -f $x autotools/$x; done; rm -Rf autom4te.cache; set -x
if test ! -d autotools; then mkdir autotools; fi

# Bootstrap package
${libtoolize} --copy --force
if test -f "ltmain.sh"; then
  echo "$0: working around a minor libtool issue"
  mv ltmain.sh autotools/
fi

aclocal${amvers} -I autotools
autoconf${acvers}
autoheader${acvers}
#add --include-deps if you want to bootstrap with any other compiler than gcc
#automake${amvers} --add-missing --copy --include-deps
automake${amvers} --add-missing --copy