https://bugs.gentoo.org/917556
https://gitlab.gnome.org/GNOME/libsoup/-/commit/ced3c5d8cad0177b297666343f1561799dfefb0d

From ced3c5d8cad0177b297666343f1561799dfefb0d Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 22 Nov 2023 18:49:10 -0800
Subject: [PATCH] Fix build with libxml2-2.12.0 and clang-17

Fixes build errors about missing function prototypes with clang-17

Fixes
| ../libsoup-2.74.3/libsoup/soup-xmlrpc-old.c:512:8: error: call to undeclared function 'xmlParseMemory'; ISO C99 and later do not support implicit function declarations

Signed-off-by: Khem Raj <raj.khem@gmail.com>
--- a/libsoup/soup-xmlrpc-old.c
+++ b/libsoup/soup-xmlrpc-old.c
@@ -11,6 +11,7 @@
 
 #include <string.h>
 
+#include <libxml/parser.h>
 #include <libxml/tree.h>
 
 #include "soup-xmlrpc-old.h"
--- a/libsoup/soup-xmlrpc.c
+++ b/libsoup/soup-xmlrpc.c
@@ -17,6 +17,7 @@
 
 #include <string.h>
 #include <errno.h>
+#include <libxml/parser.h>
 #include <libxml/tree.h>
 #include "soup-xmlrpc.h"
 #include "soup.h"
-- 
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