Fix compiler warning after 153cf15905cf4ec080612ada6703757d10caba1e
Add missing cast for xmlNop to silence a compiler warning.
diff --git a/parser.c b/parser.c
index e719c9f..31f90d6 100644
--- a/parser.c
+++ b/parser.c
@@ -2025,7 +2025,7 @@
static void xmlGROW (xmlParserCtxtPtr ctxt) {
if ((((ctxt->input->end - ctxt->input->cur) > XML_MAX_LOOKUP_LIMIT) ||
((ctxt->input->cur - ctxt->input->base) > XML_MAX_LOOKUP_LIMIT)) &&
- ((ctxt->input->buf) && (ctxt->input->buf->readcallback != xmlNop)) &&
+ ((ctxt->input->buf) && (ctxt->input->buf->readcallback != (xmlInputReadCallback) xmlNop)) &&
((ctxt->options & XML_PARSE_HUGE) == 0)) {
xmlFatalErr(ctxt, XML_ERR_INTERNAL_ERROR, "Huge input lookup");
ctxt->instate = XML_PARSER_EOF;