#!/bin/sh

# This  program  is  used  to  build    the  SWI-Prolog  packages.  Both
# configure.in  and  Makefile.in  receive  info  from  the  main  Prolog
# configure run.   Typically the packages are build using
#
#	./configure
#	make
#	make install
#
# If  you  also  plan  to  share  the  packages  for  both  single-  and
# multi-threaded SWI-Prolog they must be built for multi-threading.

MAKE=@MAKE@

# Setup the environment, so that targets of configure can find the shared
# objects of Prolog

BUILDDIR=@BUILDDIR@
srcdir=`echo @abs_srcdir@ | sed 's=/../packages$=='`
PLARCH=@PLARCH@
PL=@PL@
bdir=$srcdir/../$BUILDDIR
ldir=$srcdir/../lib/$PLARCH

export MAKE PLARCH PL

if [ "x$@DLLIBVAR@" = "x" ]; then
  @DLLIBVAR@=$ldir
else
  @DLLIBVAR@="$ldir:$@DLLIBVAR@"
fi
export @DLLIBVAR@


delpkg()
{ tmp=""
  found=no

  for p in $PKG; do
    if [ "$p" = "$1" ]; then
      found=$p
    else
      tmp="$tmp $p"
    fi
  done

  if [ "$found" = "no" ]; then
    return 1
  else
    echo "Dropped package $found"
    PKG="$tmp"
  fi
}


if [ -z "$PKG" ]; then
  PKG="clib cpp odbc table xpce sgml RDF semweb http chr clpqr nlp ssl tipc pldoc plunit jpl zlib R protobufs windows PDT utf8proc archive"
fi

if [ ! -z "$EXTRA_PKGS" ]; then
  for pkg in $EXTRA_PKGS; do
    PKG="$PKG $pkg"
  done
fi

if [ ! -z "$DISABLE_PKGS" ]; then
  for pkg in $DISABLE_PKGS; do
    delpkg $pkg
  done
fi

configoptions=""

while [ "$1" != "" ]; do
  case "$1" in
	--without-*)	pkg=`echo "$1" | sed 's/--without-//'`
			if ! delpkg $pkg; then
			  configoptions="$configoptions $1"
			fi
			shift;
			;;
	--with-*)	pkg=`echo "$1" | sed 's/--with-//'`
			if [ -d "$pkg" ]; then
			  delpkg $pkg > /dev/null
			  echo "Added package $pkg"
			  PKG="$PKG $pkg"
			else
			  configoptions="$configoptions $1"
			fi
			shift;
			;;
	*)		configoptions="$configoptions $1"
			shift
			;;
  esac
done

for p in $PKG; do
  if test -f $p/testenv; then
    echo -n "Checking environment for package $p ..."
    if $p/testenv; then
      echo "ok"
    else
      echo "test failed, deleting $p from targets"
      delpkg $p
    fi
  fi
done

sed "s@^PKG=.*@PKG=$PKG@" Makefile > Makefile.pkg
if cmp -s Makefile Makefile.pkg; then
   rm Makefile.pkg
else
   mv Makefile.pkg Makefile
fi

$MAKE CNFGPASSED="$configoptions" configure || exit 1