dnl Process this file with autoconf to produce a configure script.
dnl
dnl COPYRIGHT (c) 2010 The Diderot Project
dnl All rights reserved.
dnl

dnl NOTE: MANTICORE_DIST_VERSION is an M4 variable defined in config/aclocal.m4
dnl
AC_INIT(diderot,0.1,)

AC_PREREQ(2.60)
AC_COPYRIGHT([[COPYRIGHT (c) 2010 The Diderot Project]])
AC_CONFIG_SRCDIR(src/dnorm/dnorm.c)
AC_CONFIG_AUX_DIR(config)
AC_CONFIG_MACRO_DIR(config)

dnl
dnl include additional macros
dnl
sinclude(config/acx_pthread.m4)
sinclude(config/check_smlnj.m4)
sinclude(config/check_smlnj_heap_suffix.m4)


dnl
dnl get host information
dnl
AC_CANONICAL_HOST

dnl check for standard programs
dnl
AC_PROG_CC_C99
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_MAKE_SET

dnl
dnl If we are on Mac OS X, check for the presence of macports and/or fink
dnl
NEEDS_MACPORTS=no
NEEDS_FINK=no
case "$host_os" in
  darwin*) # On Mac OS X we check for installed frameworks
    if test -x /opt/local/bin/port ; then
      HAS_MACPORTS=yes
    else
      HAS_MACPORTS=no
    fi
    if test -x /sw/bin/fink ; then
      HAS_FINK=yes
    else
      HAS_FINK=no
    fi
  ;;
esac

if test x"$HAS_MACPORTS" = xyes ; then
  LDPATHS="-L/opt/local/lib"
elif test x"$HAS_FINK" = xyes ; then
  LDPATHS="-L/sw/lib"
else
  LDPATHS=""
fi
AC_SUBST(LDPATHS)

dnl
dnl get the path to the TEEM installation
dnl
AC_ARG_WITH(teem,
  AC_HELP_STRING([--with-teem=<path>], [specify path to teem installation]),
  [ac_cv_use_teem=$withval], [ac_cv_use_teem=no])
if test x"$ac_cv_use_teem" = xno ; then
  TEEM_DIR=none
else
  AC_MSG_CHECKING([path to teem ($ac_cv_use_teem)])
  case $ac_cv_use_teem in
    /*) ;;
    *) AC_MSG_ERROR([path to teem must be absolute]) ;;
  esac
  if test -x $ac_cv_use_teem ; then
    TEEM_DIR=$ac_cv_use_teem
    AC_MSG_RESULT([ okay])
  else
    TEEM_DIR=none
    AC_MSG_RESULT([ invalid])
  fi
fi
if test x"$TEEM_DIR" = xnone ; then
  AC_MSG_ERROR([unable to find teem])
fi
AC_SUBST(TEEM_DIR)

dnl ******************** SML/NJ configuration ********************
dnl

dnl check that we have a compatible version of SML/NJ
dnl
CHECK_SMLNJ([AC_MSG_ERROR([unable to find SML/NJ installation; check your PATH or set SMLNJ_CMD])])
if test $SMLNJ_MAJOR_VERSION -lt 110 \
  -o $SMLNJ_MINOR_VERSION -lt 72
then
  AC_MSG_ERROR([installation requires SML/NJ version 110.72+])
fi
AC_SUBST(SMLNJ_VERSION)

dnl determine the heap-image suffix
dnl
CHECK_SMLNJ_HEAP_SUFFIX([
  AC_MSG_ERROR([unsupported configuration ${host_cpu}-${host_os}])])

dnl look for ml-makedepend
dnl
AC_MSG_CHECKING([for ml-makedepend])
tmpPATH="$SMLNJ_PATH:$PATH"
AC_PATH_PROG(ML_MAKEDEPEND, ml-makedepend, ":", $tmpPATH)
if test $ML_MAKEDEPEND = none ; then
  AC_MSG_ERROR([ml-makedepend not found])
else
  AC_MSG_RESULT([$ML_MAKEDEPEND])
fi
AC_SUBST(ML_MAKEDEPEND)

dnl
dnl look for ml-build
dnl
tmpPATH="$SMLNJ_PATH:$PATH"
AC_PATH_PROG(ML_BUILD, ml-build, none, $tmpPATH)
if test $ML_BUILD = none ; then
  AC_MSG_ERROR([ml-build not found])
fi
AC_SUBST(ML_BUILD)

dnl ******************** Paths ********************

DIDEROT_ROOT=`pwd`
DIDEROT_DOCDIR=$DIDEROT_ROOT/doc
DIDEROT_SRCDIR=$DIDEROT_ROOT/src
DIDEROT_LIBDIR=$DIDEROT_ROOT/lib
DIDEROT_BINDIR=$DIDEROT_ROOT/bin
DIDEROT_MKDIR=$DIDEROT_ROOT/mk

HEAP_IMAGE_DIR=$DIDEROT_BINDIR/.heap
INSTALL_SMLNJ_WRAPPER=$DIDEROT_BINDIR/install-sml-wrapper.sh

AC_SUBST(DIDEROT_ROOT)
AC_SUBST(DIDEROT_DOCDIR)
AC_SUBST(DIDEROT_SRCDIR)
AC_SUBST(DIDEROT_LIBDIR)
AC_SUBST(DIDEROT_BINDIR)
AC_SUBST(DIDEROT_MKDIR)
AC_SUBST(HEAP_IMAGE_DIR)
AC_SUBST(INSTALL_SMLNJ_WRAPPER)

dnl
dnl ******************** write output ********************
dnl

dnl ***** Makefiles *****
AC_CONFIG_FILES(
  src/dnorm/Makefile
  src/compiler/Makefile
)

dnl
dnl shell scripts
dnl
AC_CONFIG_FILES([
  bin/install-sml-wrapper.sh:config/install-sml-wrapper_sh.in
], [chmod +x bin/install-sml-wrapper.sh])

AC_OUTPUT