#! /bin/sh

# Try to turn internationalization off

unset LANG

unset LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME

set -e

PINNED=0

for i in "$@"; do

  case $i in

    --bindir=*)

      BINDIR=${i##*=}

      ;;

    --libdir=*)

      LIBDIR=${i##*=}

      ;;

    --pkgdir=*)

      PKGDIR=${i##*=}

      ;;

    --pinned*)

      PINNED=1

      ;;

    *)

      echo "usage: ./configure [--bindir=<dir>] [--libdir=<dir>] [--pkgdir=<dir>]" 1>&2

      exit 2

      ;;

  esac

done

# OCaml is already installed, this means we should have everything we

# need. Just dump its configuration.

ocaml_version=`ocamlc -version`

major=`echo $ocaml_version | cut -d. -f1`

minor=`echo $ocaml_version | cut -d. -f2`

if [ $major -lt 4 -o \( $major -eq 4 -a $minor -lt 2 \) ]; then

    echo "The standalone Camlp4 requires OCaml >= 4.02."

    echo "For previous versions of OCaml use the Camlp4 distributed with OCaml."

    exit 2

elif [ $major -ne 4 -o $minor -ne 7 ]; then

    echo "This version of Camlp4 is for OCaml 4.07 but you are using OCaml $ocaml_version."

    if [ -d .git ] ; then

      if [ $PINNED -eq 1 ] ; then

        echo "You've used the wrong opam pin URL for this switch.">&2

        echo "Try https://github.com/ocaml/camlp4.git#$major.$minor instead">&2

      else

        echo "You appear to be building Camlp4 from git, so try the $major.$minor branch."

      fi

    fi

    exit 2

fi

ocamlc -config | tr -d '\015' | sed 's/: /="/;s/$/"/' > config.sh

ocamlc -config | tr -d '\015' | sed 's/^/let /;s/: / = "/;s/$/"/' > myocamlbuild_config.ml

# Add a few things to config.sh

. ./config.sh

if [ "$os_type" = Win32 ]; then

    ext_exe=".exe"

else

    ext_exe=""

fi

OCAMLC="`command -v ocamlc`"

LIBDIR="${LIBDIR:-$standard_library}"

BINDIR="${BINDIR:-`dirname $OCAMLC`}"

PKGDIR="${PKGDIR:-$standard_library}"

if [ -x "`command -v ocamlopt`" ]; then

    OB_FLAGS=""

else

    OB_FLAGS="-byte-plugin"

fi

COMPLIBS="`ocamlc -where`/compiler-libs"

if [ -f "$COMPLIBS/opttoploop.cmi" ]; then

    OCAMLNAT=true

else

    OCAMLNAT=false

fi

cat >> config.sh <

A="$ext_lib"

O="$ext_obj"

EXE="$ext_exe"

LIBDIR="$LIBDIR"

BINDIR="$BINDIR"

PKGDIR="$PKGDIR"

OB_FLAGS=$OB_FLAGS

OCAMLNAT=$OCAMLNAT

EOF

cat >> myocamlbuild_config.ml <

let libdir="$LIBDIR"

let bindir="$BINDIR"

let pkgdir="$PKGDIR"

let ocamlnat=$OCAMLNAT

EOF