dnl
dnl Autoconf support for external data store
dnl

AC_DEFUN(AC_OASYS_CONFIG_EXTERNAL_DS, [
    ac_eds='no'
    AC_ARG_ENABLE(eds,
        AC_HELP_STRING([--enable-eds],
    		   	[enable external data store support]),
        ac_eds=$enableval) 
    dnl
    dnl First make sure we even want it
    dnl
    if test "$ac_eds" = no; then
        EXTERNAL_DS_ENABLED=0
    else
        if test ! "$XERCES_C_ENABLED" = 1 ; then
	    AC_MSG_ERROR([external data store support requires xerces... install it or configure --disable-eds])
        fi
        EXTERNAL_DS_ENABLED=1
        AC_DEFINE_UNQUOTED(EXTERNAL_DS_ENABLED, 1, [whether external data store support is enabled])
    fi # EXTERNAL_DS_ENABLED
])