AC_ARG_WITH(python,
	[ --with-python[=DIR]              interface to R language],
	if test "$withval" = yes; then
	    yap_cv_python=yes
	elif test "$withval" = no; then
	    yap_cv_python=no
	else
	    yap_cv_python=$withval
	fi,
	[yap_cv_python=no])

if test "$yap_cv_python" = "no"; then
    PYTHON_TARGET="dummy"
    ENABLE_PYTHON="@# "
elif test -e "$srcdir"/packages/python/Makefile.in ; then
   PYTHON_TARGET="pitf"
   ENABLE_PYTHON=""
   if test "$yap_cv_python" = "yes"
   then
      AC_CHECK_PROGS(PYTHON, python, "none")
   else
     PYTHON="$yap_cv_python"
   fi
   PYTHONHOME=`$PYTHON -c'import sys; print sys.prefix'`
   PYTHONVERSION=`"$PYTHON" -c "import sys; print sys.version[[:3]]"`
   PYTHON_LIBS="-L $PYTHONHOME/lib -lpython$PYTHONVERSION"
   PYTHON_INCLUDES="-I $PYTHONHOME/include/python$PYTHONVERSION"
else
    PYTHON_TARGET="dummy"
    ENABLE_PYTHON="@# "
fi

AC_SUBST(PYTHON_TARGET)
AC_SUBST(ENABLE_PYTHON)
AC_SUBST(PYTHON_INCLUDES)
AC_SUBST(PYTHON_LIBS)

if test "$ENABLE_PYTHON" = ""; then
AC_CONFIG_FILES([ packages/python/Makefile ])
fi