package/libsoup: fix build with libxml2 2.12

This commit adds a libsoup patch that fixes the build with libxml2
2.12, only due to a missing header inclusion. The patch cannot be
submitted upstream as libsoup2 is unmaintained, and libsoup3 no longer
has the problematic XMLRPC code.

Fixes:

  http://autobuild.buildroot.net/results/4c3152720d64b204101e1611442e535b14adc41c/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libsoup/0002-libsoup-soup-xmlrpc-soup-xmlrpc-old-add-missing-libx.patch

@@ -0,0 +1,47 @@
+From 8a21b58b45edbf11d9041f884bb9c42e6440104c Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+Date: Tue, 26 Dec 2023 14:38:58 +0100
+Subject: [PATCH] libsoup/{soup-xmlrpc,soup-xmlrpc-old}: add missing
+ <libxml/parser.h> include
+
+Since libxml2 2.12.1, including <libxml/parser.h> is needed to get the
+prototype of xmlParseMemory(), causing a build breakage of libsoup
+with a recent version of libxml2.
+
+Upstream: Not Applicable
+[libsoup2 is not maintained upstream, and libsoup3 no longer contains
+the XMLRPC code. We are keepin libsoup2 in Buildroot for compatibility
+with packages that haven't moved to libsoup3 yet.]
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ libsoup/soup-xmlrpc-old.c | 1 +
+ libsoup/soup-xmlrpc.c     | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/libsoup/soup-xmlrpc-old.c b/libsoup/soup-xmlrpc-old.c
+index c57086b6..dd51de53 100644
+--- a/libsoup/soup-xmlrpc-old.c
++++ b/libsoup/soup-xmlrpc-old.c
+@@ -12,6 +12,7 @@
+ #include <string.h>
+ 
+ #include <libxml/tree.h>
++#include <libxml/parser.h>
+ 
+ #include "soup-xmlrpc-old.h"
+ #include "soup.h"
+diff --git a/libsoup/soup-xmlrpc.c b/libsoup/soup-xmlrpc.c
+index 42dcda9c..b0132d26 100644
+--- a/libsoup/soup-xmlrpc.c
++++ b/libsoup/soup-xmlrpc.c
+@@ -18,6 +18,7 @@
+ #include <string.h>
+ #include <errno.h>
+ #include <libxml/tree.h>
++#include <libxml/parser.h>
+ #include "soup-xmlrpc.h"
+ #include "soup.h"
+ 
+-- 
+2.43.0
+