#!/bin/sh

set -e
set -u

srcdir="."
builddir="."
options="--enable-multithread --with-pic --disable-shared --enable-static"
for argument in "$@"; do
  case "$argument" in
    --srcdir=*)
      srcdir="$(echo "${argument}" | sed -e 's/--srcdir=//')"
      ;;
    --prefix=*|--host=*)
      options="${options} ${argument}"
      ;;
    --enable-debug=*)
      options="${options} CFLAGS='${CFLAGS} -O0 -g3'"
      ;;
    --enable-shared-onigmo)
      options="${options} --enable-shared"
      ;;
  esac
done

top_srcdir="${srcdir}/../.."
top_builddir="${builddir}/../.."

abs_top_srcdir="$(cd "${top_srcdir}" && pwd)"
abs_top_builddir="$(cd "${top_builddir}" && pwd)"

relative_onigmo_directory="vendor/onigmo-source"
onigmo_directory="${top_srcdir}/${relative_onigmo_directory}"

onigmo_directory_in_build_directory="${abs_top_builddir}/${relative_onigmo_directory}"
if [ "${abs_top_srcdir}/vendor/onigmo" != "$(pwd)" ]; then
  mkdir -p "${onigmo_directory_in_build_directory}"
  rm -rf "${onigmo_directory_in_build_directory}"
  cp -rp \
      "${abs_top_srcdir}/${relative_onigmo_directory}" \
      "${onigmo_directory_in_build_directory}"
fi

cd "${onigmo_directory_in_build_directory}"

echo ./configure ${options}
./configure ${options}
