#
# autoconf input for Objective Caml programs
# Copyright (C) 2001 Jean-Christophe Filliātre
#   from a first script by Georges Mariano 
# 
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License version 2, as published by the Free Software Foundation.
# 
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# 
# See the GNU Library General Public License version 2 for more details
# (enclosed in the file LGPL).

# the script generated by autoconf from this input will set the following
# variables:
#   OCAMLC        "ocamlc" if present in the path, or a failure
#                 or "ocamlc.opt" if present with same version number as ocamlc
#   OCAMLOPT      "ocamlopt" (or "ocamlopt.opt" if present), or "no"
#   OCAMLBEST     either "byte" if no native compiler was found, 
#                 or "opt" otherwise
#   OCAMLDEP      "ocamldep"
#   OCAMLLEX      "ocamllex" (or "ocamllex.opt" if present)
#   OCAMLYACC     "ocamlyac"
#   OCAMLLIB      the path to the ocaml standard library
#   OCAMLVERSION  the ocaml version number
#   OCAMLWEB      "ocamlweb" (not mandatory)
#   OCAMLWIN32    "yes"/"no" depending on Sys.os_type = "Win32"
#   EXE           ".exe" if OCAMLWIN32=yes, "" otherwise

# check for one particular file of the sources 
# ADAPT THE FOLLOWING LINE TO YOUR SOURCES!
AC_INIT(src/lvrouted.ml)

# Check for Ocaml compilers
# then we look for ocamlopt; if not present, we issue a warning
# if the version is not the same, we also discard it
# we set OCAMLBEST to "opt" or "byte", whether ocamlopt is available or not
OCAMLBEST=byte
AC_CHECK_PROG(OCAMLOPT,ocamlopt,ocamlopt,no)
if test "$OCAMLOPT" = no ; then
	AC_MSG_ERROR(Cannot find ocamlopt.)
fi
OCAMLBEST=opt
OCAMLVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version *\(.*\)$|\1|p' `
echo "ocaml version is $OCAMLVERSION"
OCAMLLIB=`$OCAMLOPT -v | tail -1 | cut -f 4 -d " "`
echo "ocaml library path is $OCAMLLIB"

AC_CHECK_PROG(OCAMLDEP,ocamldep,ocamldep,no)
if test "$OCAMLDEP" = no ; then
	AC_MSG_ERROR(Cannot find ocamldep.)
fi
AC_CHECK_PROG(OCAMLFIND,ocamlfind,ocamlfind,no)
if test "$OCAMLFIND" = no ; then
	AC_MSG_ERROR(Cannot find ocamlfind.)
fi

AC_CHECK_PROG(OCAMLWEB,ocamlweb,ocamlweb,true)

# Documentation checks, ignore if not found
AC_CHECK_PROG(DOT,dot,dot,true)
AC_CHECK_PROG(PS2PDF,ps2pdf,ps2pdf,true)
AC_CHECK_PROG(XSLTPROC,xsltproc,xsltproc,true)

# platform
AC_MSG_CHECKING(platform)
if echo "let _ = Sys.os_type" | ocaml | grep -q Win32; then
    AC_MSG_RESULT(Win32)
    OCAMLWIN32=yes
    EXE=.exe
else
    OCAMLWIN32=no
    EXE=
fi

XSLTPROC_FLAGS=--nonet
XML_CATALOG=
for i in /usr/local/share/xml/catalog \
	 /etc/xml/catalog \
	 /sw/etc/xml/catalog \
   /opt/local/etc/xml/catalog; do
	if test -f "$i"; then
		XML_CATALOG=$i
	fi
done

DOCBOOK_ROOT=
if test ! -n "$XML_CATALOG"; then
	for i in /usr/share/xml/docbook/stylesheet/nwalsh/ \
		 /usr/local/share/xsl/docbook/ \
		 /sw/share/xml/xsl/docbook-xsl \
     /opt/local/share/xsl/docbook-xsl/; do
		if test -d "$i"; then
			DOCBOOK_ROOT=$i
		fi
	done
	if test -x "$DOCBOOK_ROOT"; then
		XSLTPROC_FLAGS=
	fi
fi
AC_SUBST(XSLTPROC_FLAGS)
AC_SUBST(XML_CATALOG)
AC_SUBST(DOCBOOK_ROOT)

# substitutions to perform
AC_SUBST(OCAMLC)
AC_SUBST(OCAMLOPT)
AC_SUBST(OCAMLDEP)
AC_SUBST(OCAMLLEX)
AC_SUBST(OCAMLYACC)
AC_SUBST(OCAMLBEST)
AC_SUBST(OCAMLVERSION)
AC_SUBST(OCAMLLIB)
AC_SUBST(OCAMLWEB)
AC_SUBST(OCAMLWIN32)
AC_SUBST(OCAMLFIND)
AC_SUBST(XSLTPROC)
AC_SUBST(EXE)

AC_CONFIG_HEADERS(src/config.h)
AC_CHECK_HEADERS([ net/if_dl.h net/if_ieee80211.h net80211/ieee80211.h sys/param.h netinet/ether.h dev/wi/if_wavelan_ieee.h ])
AC_CHECK_TYPE(struct rt_msghdr, [ AC_DEFINE(HAVE_RTMSG,, [struct rt_msghdr]) ],, [
#include <sys/types.h>
#include <sys/socket.h>
#include <net/route.h>
])

# Finally create the Makefile from Makefile.in
AC_OUTPUT([
	Makefile
	src/Makefile
	docs/Makefile
])