File _service:tar_scm:backport-Add-XML_DEPRECATED-ma... of Package libxml2

File _service:tar_scm:backport-Add-XML_DEPRECATED-macro.patch of Package libxml2 (Revision d4702ddc4cbebca9b2a718fbd5e861c1)

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From a2fe74c08a9bd03cf5515b9e44d2005538b9f619 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sun, 20 Feb 2022 18:19:27 +0100
Subject: [PATCH 3/3] Add XML_DEPRECATED macro

__attribute__((deprecated)) is available since at least GCC 3.1, so an
exact version check is probably unnecessary.
---
 include/libxml/xmlversion.h.in | 18 ++++++++++++++++++
 testapi.c                      |  3 +++
 2 files changed, 21 insertions(+)

diff --git a/include/libxml/xmlversion.h.in b/include/libxml/xmlversion.h.in
index f9f79a2f..b1d2a208 100644
--- a/include/libxml/xmlversion.h.in
+++ b/include/libxml/xmlversion.h.in
@@ -456,6 +456,15 @@ XMLPUBFUN void XMLCALL xmlCheckVersion(int version);
 # define LIBXML_ATTR_FORMAT(fmt,args)
 #endif
 
+#ifndef XML_DEPRECATED
+#  ifdef IN_LIBXML
+#    define XML_DEPRECATED
+#  else
+/* Available since at least GCC 3.1 */
+#    define XML_DEPRECATED __attribute__((deprecated))
+#  endif
+#endif
+
 #else /* ! __GNUC__ */
 /**
  * ATTRIBUTE_UNUSED:
@@ -475,6 +484,15 @@ XMLPUBFUN void XMLCALL xmlCheckVersion(int version);
  * Macro used to indicate to GCC the parameter are printf like
  */
 #define LIBXML_ATTR_FORMAT(fmt,args)
+/**
+ * XML_DEPRECATED:
+ *
+ * Macro used to indicate that a function, variable, type or struct member
+ * is deprecated.
+ */
+#ifndef XML_DEPRECATED
+#define XML_DEPRECATED
+#endif
 #endif /* __GNUC__ */
 
 #ifdef __cplusplus
diff --git a/testapi.c b/testapi.c
index 4b091f0c..3a4dc2fe 100644
--- a/testapi.c
+++ b/testapi.c
@@ -8,6 +8,9 @@
  * daniel@veillard.com
  */
 
+/* Disable deprecation warnings */
+#define XML_DEPRECATED
+
 #include "libxml.h"
 #include <stdio.h>
 
-- 
2.27.0