File _service:tar_scm:backport-xpath-Remove-remainin... of Package libxml2

File _service:tar_scm:backport-xpath-Remove-remaining-references-to-valueFrame.patch of Package libxml2 (Revision e3d20fecef1a2a3bbc77189d584a68fe)

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From fa993130f91a09c5b8d1454514a4ad44dd54f116 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sun, 30 Apr 2023 12:57:09 +0200
Subject: [PATCH] xpath: Remove remaining references to valueFrame

Fixes #529.
---
 include/libxml/xpath.h          | 2 +-
 include/libxml/xpathInternals.h | 2 +-
 xpointer.c                      | 1 -
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/include/libxml/xpath.h b/include/libxml/xpath.h
index b57985a2..6dae0780 100644
--- a/include/libxml/xpath.h
+++ b/include/libxml/xpath.h
@@ -400,7 +400,7 @@ struct _xmlXPathParserContext {
     int xptr;				/* it this an XPointer expression */
     xmlNodePtr         ancestor;	/* used for walking preceding axis */
 
-    int              valueFrame;        /* unused */
+    int              valueFrame;        /* always zero for compatibility */
 };
 
 /************************************************************************
diff --git a/include/libxml/xpathInternals.h b/include/libxml/xpathInternals.h
index cb0991d7..870055f9 100644
--- a/include/libxml/xpathInternals.h
+++ b/include/libxml/xpathInternals.h
@@ -297,7 +297,7 @@ XMLPUBFUN void *
     if (ctxt == NULL) return;						\
     if (nargs != (x))							\
         XP_ERROR(XPATH_INVALID_ARITY);					\
-    if (ctxt->valueNr < ctxt->valueFrame + (x))				\
+    if (ctxt->valueNr < (x))						\
         XP_ERROR(XPATH_STACK_ERROR);
 
 /**
diff --git a/xpointer.c b/xpointer.c
index d8c18d7a..73514215 100644
--- a/xpointer.c
+++ b/xpointer.c
@@ -1248,7 +1248,6 @@ xmlXPtrEvalXPointer(xmlXPathParserContextPtr ctxt) {
 	ctxt->valueNr = 0;
 	ctxt->valueMax = 10;
 	ctxt->value = NULL;
-	ctxt->valueFrame = 0;
     }
     SKIP_BLANKS;
     if (CUR == '/') {
-- 
2.27.0