#! /bin/sh

#########################################################################

#                                                                       #

#                                 OCaml                                 #

#                                                                       #

#            Xavier Leroy, projet Cristal, INRIA Rocquencourt           #

#                                                                       #

#   Copyright 1999 Institut National de Recherche en Informatique et    #

#   en Automatique.  All rights reserved.  This file is distributed     #

#   under the terms of the GNU Library General Public License, with     #

#   the special exception on linking described in file LICENSE.         #

#                                                                       #

#########################################################################

configure_options="$*"

where=''

installbindir=''

installdir=''

tk_defs=''

tk_libs=''

tk_x11=yes

use_findlib=no

verbose=no

optcomps=no

# The inf(), wrn(), err() functions below can be used to provide a consistent

# way to notify the user. The notification is always given to the stdout

# descriptor.

inf() {

  printf "%b\n" "$*" 1>&3

}

wrn() {

  printf "[WARNING] %b\n" "$*" 1>&3

}

err() {

  printf "[ERROR!]%b\n" "$*" 1>&3

  exit 2

}

exec 3>&1

# Parse command-line arguments

if echo "$configure_options" | grep -q -e '--\?[a-zA-Z0-9-]\+='; then

  err "Arguments to this script look like '-libdir /foo/bar', not '-libdir=/foo/bar' (note the '=')."

fi

while : ; do

  case "$1" in

    "") break;;

    -installbindir|--installbindir)

        installbindir=$2; shift;;

    -installdir|--installdir)

        installdir=$2; shift;;

    -libdir|--libdir)

        where=$2; shift;;

    -tkdefs*|--tkdefs*)

        tk_defs=$2; shift;;

    -tklibs*|--tklibs*)

        tk_libs=$2; shift;;

    -tk-no-x11|--tk-no-x11)

        tk_x11=no;;

    -use-findlib|--use-findlib)

        use_findlib=yes;;

    -verbose|--verbose)

        verbose=yes;;

    *) err "Unknown option \"$1\".";;

  esac

  shift

done

export verbose

# Where to install

if test -n "$where"; then :

elif test $use_findlib = yes; then

  where=`ocamlfind printconf stdlib`

else

  where=`ocamlc -where 2> /dev/null || echo '/usr/local/lib/ocaml'`

fi

if test -n "$installdir" ; then :

elif test "$use_findlib" = yes; then

  installdir="`ocamlfind printconf destdir`/labltk"

else

  installdir='$(LIBDIR)/labltk'

fi

if test -z "$installbindir"; then

  installbindir='$(BINDIR)'

fi

# Sanity checks

case "$where" in

  /*) ;;

   *) err "The ocaml library directory must be absolute.";;

esac

case "$installdir" in

  /*|'$'*) ;;

   *) err "The installation directory must be absolute.";;

esac

case "$installbindir" in

  /*|'$'*) ;;

   *) err "The binary installation directory must be absolute.";;

esac

# Generate the files

cd config/auto-aux

rm -f Makefile

touch Makefile

# Write options to Makefile

echo "# generated by ./configure $configure_options" >> Makefile

# Include OCaml configuration

echo "include $where/Makefile.config" >> Makefile

# Where to install

echo "USE_FINDLIB=$use_findlib" >> Makefile

echo "INSTALLDIR=$installdir" >> Makefile

echo "INSTALLBINDIR=$installbindir" >> Makefile

# Which compiler to use

ocamlc_where=`ocamlc -where 2> /dev/null`

ocamlc_ver=`ocamlc -version 2> /dev/null`

ocamlc_opt_ver=`ocamlc.opt -version 2> /dev/null`

ocamlopt_ver=`$ocamlopt -version 2> /dev/null`

ocamlopt_opt_ver=`$ocamlopt.opt -version 2> /dev/null`

if test x"$where" = x"$ocamlc_where" \

  && test -n "$ocamlc_opt_ver" && test x"$ocamlc_opt_ver" = x"$ocamlc_ver" \

  && (test -z "$ocamlopt_ver" || test x"$ocamlopt_ver" = x"$ocamlopt_opt_ver")

then

  optcomps=yes

  echo "OPT=.opt" >> Makefile

else

  echo "OPT=" >> Makefile

fi

# Look for tcl/tk

inf "Configuring LablTk..."

if test $tk_x11 = no; then

  has_tk=true

else

  tk_x11_include=`cat $where/Makefile.config | grep '^X11_INCLUDES=' | sed -e 's/^X11_INCLUDES=//'`

  tk_x11_libs=`cat $where/Makefile.config | grep '^X11_LIBS=' | sed -e 's/^X11_LIBS=//'`

  has_tk=true

fi

cc=`cat $where/Makefile.config | grep '^CC=' | sed -e 's/^CC=//'`

cclibs=`cat $where/Makefile.config | grep '^NATIVECCLIBS=' | sed -e 's/^NATIVECCLIBS=//'`

export cc cclibs

if test $has_tk = true; then

  tcl_version=''

  tcl_version=`sh ./runtest $tk_defs $tk_x11_include tclversion.c`

  for tk_incs in \

    "-I/usr/local/include" \

    "-I/opt/local/include" \

    "-I/sw/include" \

    "-I/usr/pkg/include" \

    "-I/usr/include" \

    "-I/usr/local/include/tcl8.6 -I/usr/local/include/tk8.6" \

    "-I/usr/include/tcl8.6 -I/usr/include/tk8.6" \

    "-I/usr/local/include/tcl8.5 -I/usr/local/include/tk8.5" \

    "-I/usr/include/tcl8.5 -I/usr/include/tk8.5" \

    "-I/usr/local/include/tcl8.4 -I/usr/local/include/tk8.4" \

    "-I/usr/include/tcl8.4 -I/usr/include/tk8.4" \

    "-I/usr/local/include/tcl8.3 -I/usr/local/include/tk8.3" \

    "-I/usr/include/tcl8.3 -I/usr/include/tk8.3" \

    "-I/usr/local/include/tcl8.2 -I/usr/local/include/tk8.2" \

    "-I/usr/include/tcl8.2 -I/usr/include/tk8.2"

  do if test -z "$tcl_version"; then

    tk_defs="$tk_incs"

    tcl_version=`sh ./runtest $tk_defs $tk_x11_include tclversion.c`

  fi; done

  if test -n "$tcl_version" && test "x$tcl_version" != "xnone"; then

    inf "tcl.h and tk.h version $tcl_version found with \"$tk_defs\"."

    case $tcl_version in

    8.6) tclmaj=8 tclmin=6 tkmaj=8 tkmin=6 ;;

    8.5) tclmaj=8 tclmin=5 tkmaj=8 tkmin=5 ;;

    8.4) tclmaj=8 tclmin=4 tkmaj=8 tkmin=4 ;;

    8.3) tclmaj=8 tclmin=3 tkmaj=8 tkmin=3 ;;

    8.2) tclmaj=8 tclmin=2 tkmaj=8 tkmin=2 ;;

    8.1) tclmaj=8 tclmin=1 tkmaj=8 tkmin=1 ;;

    8.0) tclmaj=8 tclmin=0 tkmaj=8 tkmin=0 ;;

    7.6) tclmaj=7 tclmin=6 tkmaj=4 tkmin=2 ;;

    7.5) tclmaj=7 tclmin=5 tkmaj=4 tkmin=1 ;;

    *) wrn "This version is not known." ; has_tk=false ;;

    esac

  else

    inf "tcl.h and/or tk.h not found."

    has_tk=false

  fi

fi

system=`cat $where/Makefile.config | grep '^SYSTEM=' | sed -e 's/^SYSTEM=//'`

if test $has_tk = true && test -z "$tk_libs"; then

  tklibdir=""

  if test -n "$tk_defs"; then

    tkinclude="$tk_defs"

  else

    tkinclude="$tk_x11_include"

  fi  

  case "$tkinclude" in

  -I/opt/local/include*) tklibdir="/opt/local/lib" ;;

  -I/usr/local/include*) tklibdir="/usr/local/lib" ;;

  -I/sw/include*) tklibdir="/sw/lib" ;;

  -I/usr/pkg/include*) tklibdir="/usr/pkg/lib" ;;

  esac

  if test -n "$tklibdir"; then

    case "$system" in

    *bsd*) tk_libs="-R$tklibdir -L$tklibdir" ;;

    *) tk_libs="-L$tklibdir" ;;

    esac

  else

    tk

  fi

fi

tkauxlibs="$cclibs"

if test $has_tk = true; then

  if test -n "$tk_libs" && \

     sh ./hasgot $tk_libs $tk_x11_libs $tkauxlibs Tcl_DoOneEvent

  then tk_libs="$tk_libs $dllib"

  elif sh ./hasgot $tk_libs -ltcl$tclmaj.$tclmin $tkauxlibs Tcl_DoOneEvent

  then

    tk_libs="$tk_libs -ltk$tkmaj.$tkmin -ltcl$tclmaj.$tclmin $dllib"

  elif sh ./hasgot $tk_libs -ltcl$tclmaj$tclmin $tkauxlibs Tcl_DoOneEvent

  then

    tk_libs="$tk_libs -ltk$tkmaj$tkmin -ltcl$tclmaj$tclmin $dllib"

  elif test -z "$tk_libs" && tk_libs=-L/usr/local/lib && \

    sh ./hasgot $tk_libs -ltcl$tclmaj.$tclmin $tkauxlibs Tcl_DoOneEvent

  then

    tk_libs="$tk_libs -ltk$tkmaj.$tkmin -ltcl$tclmaj.$tclmin $dllib"

  elif sh ./hasgot $tk_libs -ltcl$tclmaj$tclmin $tkauxlibs Tcl_DoOneEvent

  then

    tk_libs="$tk_libs -ltk$tkmaj$tkmin -ltcl$tclmaj$tclmin $dllib"

  else

    inf "Tcl library not found."

    has_tk=false

  fi

fi

if test $has_tk = true; then

  if sh ./hasgot $tk_libs $tk_x11_libs $tkauxlibs Tk_SetGrid; then

    inf "Tcl/Tk libraries found."

  else

    has_tk=false

    for tklibdir in "/usr/local/lib" "/opt/local/lib" "/sw/lib" "/usr/pkg/lib";

    do

      if test $found = no &&

         sh ./hasgot -L$tklibdir $tk_libs $tk_x11_libs $tkauxlibs Tk_SetGrid

      then

        has_tk=true

        case "$system" in

        *bsd*) tk_libs="-R$tklibdir -L$tklibdir $tk_libs";;

        *) tk_libs="-L$tklibdir $tk_libs";;

        esac

      fi

    done

    if test $has_tk = true; then

      inf "Tcl/Tk libraries found."

    else

      inf "Tcl library found."

      wrn "Tk library not found."

    fi

  fi

fi

if test $has_tk = true; then

  if test $tk_x11 = yes; then

    echo "TK_DEFS=$tk_defs "'$(X11_INCLUDES)' >> Makefile

    echo "TK_LINK=$tk_libs "'$(X11_LINK)' >> Makefile

  else

    echo "TK_DEFS=$tk_defs" >> Makefile

    echo "TK_LINK=$tk_libs" >> Makefile

  fi

  otherlibraries="$otherlibraries labltk"

else

  echo "TK_DEFS=" >> Makefile

  echo "TK_LINK=" >> Makefile

fi

mv Makefile ..

# Print a summary

inf

inf "** Configuration summary **"

inf

if test $has_tk = true; then

inf "Configuration for the \"labltk\" library:"

inf "        use tcl/tk version ....... $tcl_version"

inf "        options for compiling .... $tk_defs $tk_x11_include"

inf "        options for linking ...... $tk_libs $tk_x11_libs"

inf "        use native compilers ..... $optcomps"

else

inf "The \"labltk\" library: not supported"

fi