#! /bin/sh

set -e 

echo "Configure called: $*"

  # Try to avoid strange tricks with 
  # patsh (get any help we may have from configure)
abs_srcdir="@abs_srcdir@"
case $abs_srcdir in 
  @*@)
   abs_srcdir="$(dirname $(readlink -f $(which $0)))"
    ;;
esac

cd "$abs_srcdir" 

if test "x$1" = "x"; then
  echo "First argument _must_ be the name of the build tree"
  exit 11
fi

case $1 in 
  --*)
    echo "Uhm... something wrong in configure parameters: $*"
    exit 15
   ;;
esac

output="$1"
scatch=${scatch-"../scatch"}
base=${base-"../.."}
temp=${tree-"../tree"}
cache=${cache-"../cache"}
shift

# Build absolute paths
output=`cd $output && pwd`
scatch=`cd $scatch && pwd`
base=`cd $base && pwd`
temp=`cd $temp && pwd`
cache=`cd $cache && pwd`

if test ! -d "$output"; then
  set +e 
  mkdir "$output" &>/dev/null
  set -e
fi

if test ! -d "$output"; then
  echo 1>&2 "Output dir is not a directory (${output})"
  echo 1>&2 "and could not be created!"
  exit 12 
fi

cd "$output"
echo "${spacing}Cleaning up output tree ($output)..."
rm -rf ./*

mkdir build
echo "${spacing}Configuring ($@)... (configure.log)"

cd build 
set +e
$base/configure --cache-file="$cache/configure.cache" --prefix="$output" $@ &> configure.log
status="$?"

if test "x$status" != "x0"; then
  echo "** Configure failed"
  echo "** Command line: $base/configure --cache-file='$cache/configure.cache' --prefix='$output' $@"
  tail "./configure.log"
  cd ..
  exit 1
fi
cd ..