Re: [Libguestfs] Segmentation fault when trying to add binding

I am trying to add xmlXPathRegisterNs() to v2v/xml-c.c but I get a seg fault, the signature should be: http://xmlsoft.org/html/libxml-xpathInternals.html#xmlXPathRegisterNs I think I am wrong in CAMLparam and CAMLlocal..., Following is the patch: ====================================================================== diff --git a/v2v/xml-c.c b/v2v/xml-c.c index 4c9bc77..a917c24 100644 --- a/v2v/xml-c.c +++ b/v2v/xml-c.c @@ -141,6 +141,16 @@ v2v_xml_xpath_new_context (value docv) } value +v2v_xml_xpath_register_ns (value prefix, value uri, value xpathctx) +{ + CAMLparam3 (prefix, uri, xpathctx); + CAMLlocal1 (retval); + retval = xmlXPathRegisterNs (BAD_CAST String_val (prefix), BAD_CAST String_val (uri), xpathctx); + + CAMLreturn (retval); +} +