#! /usr/bin/env bash

# file      : build/c/configure
# copyright : Copyright (c) 2004-2012 Code Synthesis Tools CC
# license   : GNU GPL v2; see accompanying LICENSE file

# $1  out file
# $2  origin of the c_pp_options make variable
# $3  origin of the c_options make variable
# $4  origin of the c_ld_options make variable
# $5  origin of the c_libs make variable
#
# bld_root     - build root
# project_name - project name
#

source $bld_root/dialog.bash

$echo
$echo
$echo "configuring '$project_name'"
$echo
$echo

$echo
$echo "Please select the C compiler you would like to use:"
$echo
$echo "(1) GNU C (gcc)"
$echo "(2) Intel C (icc)"
$echo "(3) Other C compiler"
$echo

id=`read_option "gnu intel generic" "gnu"`

if [ "$id" != "generic" ]; then

  $echo
  $echo "Would you like the C compiler to optimize generated code?"
  $echo

  optimize=`read_y_n y`


  $echo
  $echo "Would you like the C compiler to generate debug information?"
  $echo

  debug=`read_y_n y`

  $echo
  $echo "Embed dynamic library paths into executables (rpath)?"
  $echo

  rpath=`read_y_n y`

fi

# pp_options
#
if [ "$2" != "undefined" ]; then

  pp_options=$c_pp_options

  if [ "$pp_options" ]; then
    $echo
    $echo "Extra C preprocessor options: $pp_options"
    $echo
  fi
else

  $echo
  $echo "Please enter any extra C preprocessor options."
  $echo

  read -e -p "[]: " pp_options
fi


# options
#
if [ "$3" != "undefined" ]; then

  options=$c_options

  if [ "$options" ]; then
    $echo
    $echo "Extra C compiler options: $options"
    $echo
  fi
else

  $echo
  $echo "Please enter any extra C compiler options."
  $echo

  read -p "[]: " options
fi


# ld_options
#
if [ "$4" != "undefined" ]; then

  ld_options=$c_ld_options

  if [ "$ld_options" ]; then
    $echo
    $echo "Extra C linker options: $ld_options"
    $echo
  fi
else

  $echo
  $echo "Please enter any extra C linker options."
  $echo

  read -e -p "[]: " ld_options
fi


# libs
#
if [ "$5" != "undefined" ]; then

  libs=$c_libs

  if [ "$libs" ]; then
    $echo
    $echo "Extra C libraries: $libs"
    $echo
  fi
else

  $echo
  $echo "Please enter any extra C libraries."
  $echo

  read -e -p "[]: " libs
fi


# Extract -L paths from the ld options.
#
paths=

if [ "$ld_options" ]; then
  paths=`echo "$ld_options" | sed -e 's/-L *\([^ ]*\)/\\
-L\1\\
/g' | sed -e 's/^-L\([^ ]*\)$/\1/' -e t -e d`
  paths=`echo $paths | sed -e 's/ /:/g'`
fi

echo "c_id       := $id"             >$1

if [ "$id" != "generic" ]; then
  echo "c_optimize := $optimize"       >>$1
  echo "c_debug    := $debug"          >>$1
  echo "c_rpath    := $rpath"          >>$1
fi

echo "c_pp_extra_options := $pp_options" >>$1
echo "c_extra_options    := $options"    >>$1
echo "c_ld_extra_options := $ld_options" >>$1
echo "c_extra_libs       := $libs"       >>$1
echo "c_extra_lib_paths  := $paths"      >>$1