-SV*
-_xml2hash(xml,conf)
-               char *xml;
+void
+_xml2hash(xml_sv,conf)
+               SV *xml_sv;
                HV *conf;
        PROTOTYPE: $$
-       CODE:
+       PPCODE:
+               SvGETMAGIC(xml_sv);
+               char *xml = SvPVbyte_nolen(xml_sv);