gnu: libxml2: Update to 2.9.3.

* gnu/packages/patches/libxml2-CVE-2015-1819.patch,
  gnu/packages/patches/libxml2-CVE-2015-7941-pt1.patch,
  gnu/packages/patches/libxml2-CVE-2015-7941-pt2.patch,
  gnu/packages/patches/libxml2-CVE-2015-7942-pt1.patch,
  gnu/packages/patches/libxml2-CVE-2015-7942-pt2.patch,
  gnu/packages/patches/libxml2-CVE-2015-8035.patch,
  gnu/packages/patches/libxml2-bug-737840.patch,
  gnu/packages/patches/libxml2-bug-738805.patch,
  gnu/packages/patches/libxml2-bug-746048.patch,
  gnu/packages/patches/libxml2-bug-747437.patch,
  gnu/packages/patches/libxml2-bug-751603.patch,
  gnu/packages/patches/libxml2-bug-751631.patch,
  gnu/packages/patches/libxml2-bug-754946.patch,
  gnu/packages/patches/libxml2-bug-754947.patch,
  gnu/packages/patches/libxml2-bug-755857.patch,
  gnu/packages/patches/libxml2-fix-catalog-corruption.patch,
  gnu/packages/patches/libxml2-id-attrs-in-xmlSetTreeDoc.patch,
  gnu/packages/patches/libxml2-node-sort-order-pt1.patch,
  gnu/packages/patches/libxml2-node-sort-order-pt2.patch: Delete files.
* gnu-system.am (dist_patch_DATA): Remove them.
* gnu/packages/xml.scm (libxml2): Update to 2.9.3.  Remove patches.

21 files changed, 2 insertions, 1106 deletions

diff --git a/gnu-system.am b/gnu-system.am
index 00cf38f319..ec9f63c5a0 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -559,25 +559,6 @@ dist_patch_DATA =						\
   gnu/packages/patches/libwmf-CVE-2015-0848+CVE-2015-4588.patch	\
   gnu/packages/patches/libwmf-CVE-2015-4695.patch		\
   gnu/packages/patches/libwmf-CVE-2015-4696.patch		\
-  gnu/packages/patches/libxml2-CVE-2015-1819.patch		\
-  gnu/packages/patches/libxml2-CVE-2015-7941-pt1.patch		\
-  gnu/packages/patches/libxml2-CVE-2015-7941-pt2.patch		\
-  gnu/packages/patches/libxml2-CVE-2015-7942-pt1.patch		\
-  gnu/packages/patches/libxml2-CVE-2015-7942-pt2.patch		\
-  gnu/packages/patches/libxml2-CVE-2015-8035.patch		\
-  gnu/packages/patches/libxml2-bug-737840.patch			\
-  gnu/packages/patches/libxml2-bug-738805.patch			\
-  gnu/packages/patches/libxml2-bug-746048.patch			\
-  gnu/packages/patches/libxml2-bug-747437.patch			\
-  gnu/packages/patches/libxml2-bug-751603.patch			\
-  gnu/packages/patches/libxml2-bug-751631.patch			\
-  gnu/packages/patches/libxml2-bug-754946.patch			\
-  gnu/packages/patches/libxml2-bug-754947.patch			\
-  gnu/packages/patches/libxml2-bug-755857.patch			\
-  gnu/packages/patches/libxml2-fix-catalog-corruption.patch	\
-  gnu/packages/patches/libxml2-id-attrs-in-xmlSetTreeDoc.patch	\
-  gnu/packages/patches/libxml2-node-sort-order-pt1.patch	\
-  gnu/packages/patches/libxml2-node-sort-order-pt2.patch	\
   gnu/packages/patches/libxslt-CVE-2015-7995.patch		\
   gnu/packages/patches/lirc-localstatedir.patch			\
   gnu/packages/patches/libpthread-glibc-preparation.patch	\
diff --git a/gnu/packages/patches/libxml2-CVE-2015-1819.patch b/gnu/packages/patches/libxml2-CVE-2015-1819.patch
deleted file mode 100644
index 58461c73b2..0000000000
--- a/gnu/packages/patches/libxml2-CVE-2015-1819.patch
+++ /dev/null
@@ -1,176 +0,0 @@
-From 213f1fe0d76d30eaed6e5853057defc43e6df2c9 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Tue, 14 Apr 2015 17:41:48 +0800
-Subject: [PATCH] CVE-2015-1819 Enforce the reader to run in constant memory
-
-One of the operation on the reader could resolve entities
-leading to the classic expansion issue. Make sure the
-buffer used for xmlreader operation is bounded.
-Introduce a new allocation type for the buffers for this effect.
----
- buf.c                 | 43 ++++++++++++++++++++++++++++++++++++++++++-
- include/libxml/tree.h |  3 ++-
- xmlreader.c           | 20 +++++++++++++++++++-
- 3 files changed, 63 insertions(+), 3 deletions(-)
-
-diff --git a/buf.c b/buf.c
-index 6efc7b6..07922ff 100644
---- a/buf.c
-+++ b/buf.c
-@@ -27,6 +27,7 @@
- #include <libxml/tree.h>
- #include <libxml/globals.h>
- #include <libxml/tree.h>
-+#include <libxml/parserInternals.h> /* for XML_MAX_TEXT_LENGTH */
- #include "buf.h"
- 
- #define WITH_BUFFER_COMPAT
-@@ -299,7 +300,8 @@ xmlBufSetAllocationScheme(xmlBufPtr buf,
-     if ((scheme == XML_BUFFER_ALLOC_DOUBLEIT) ||
-         (scheme == XML_BUFFER_ALLOC_EXACT) ||
-         (scheme == XML_BUFFER_ALLOC_HYBRID) ||
--        (scheme == XML_BUFFER_ALLOC_IMMUTABLE)) {
-+        (scheme == XML_BUFFER_ALLOC_IMMUTABLE) ||
-+	(scheme == XML_BUFFER_ALLOC_BOUNDED)) {
- 	buf->alloc = scheme;
-         if (buf->buffer)
-             buf->buffer->alloc = scheme;
-@@ -458,6 +460,18 @@ xmlBufGrowInternal(xmlBufPtr buf, size_t len) {
-     size = buf->use + len + 100;
- #endif
- 
-+    if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+        /*
-+	 * Used to provide parsing limits
-+	 */
-+        if ((buf->use + len >= XML_MAX_TEXT_LENGTH) ||
-+	    (buf->size >= XML_MAX_TEXT_LENGTH)) {
-+	    xmlBufMemoryError(buf, "buffer error: text too long\n");
-+	    return(0);
-+	}
-+	if (size >= XML_MAX_TEXT_LENGTH)
-+	    size = XML_MAX_TEXT_LENGTH;
-+    }
-     if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
-         size_t start_buf = buf->content - buf->contentIO;
- 
-@@ -739,6 +753,15 @@ xmlBufResize(xmlBufPtr buf, size_t size)
-     CHECK_COMPAT(buf)
- 
-     if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
-+    if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+        /*
-+	 * Used to provide parsing limits
-+	 */
-+        if (size >= XML_MAX_TEXT_LENGTH) {
-+	    xmlBufMemoryError(buf, "buffer error: text too long\n");
-+	    return(0);
-+	}
-+    }
- 
-     /* Don't resize if we don't have to */
-     if (size < buf->size)
-@@ -867,6 +890,15 @@ xmlBufAdd(xmlBufPtr buf, const xmlChar *str, int len) {
- 
-     needSize = buf->use + len + 2;
-     if (needSize > buf->size){
-+	if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+	    /*
-+	     * Used to provide parsing limits
-+	     */
-+	    if (needSize >= XML_MAX_TEXT_LENGTH) {
-+		xmlBufMemoryError(buf, "buffer error: text too long\n");
-+		return(-1);
-+	    }
-+	}
-         if (!xmlBufResize(buf, needSize)){
- 	    xmlBufMemoryError(buf, "growing buffer");
-             return XML_ERR_NO_MEMORY;
-@@ -938,6 +970,15 @@ xmlBufAddHead(xmlBufPtr buf, const xmlChar *str, int len) {
-     }
-     needSize = buf->use + len + 2;
-     if (needSize > buf->size){
-+	if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+	    /*
-+	     * Used to provide parsing limits
-+	     */
-+	    if (needSize >= XML_MAX_TEXT_LENGTH) {
-+		xmlBufMemoryError(buf, "buffer error: text too long\n");
-+		return(-1);
-+	    }
-+	}
-         if (!xmlBufResize(buf, needSize)){
- 	    xmlBufMemoryError(buf, "growing buffer");
-             return XML_ERR_NO_MEMORY;
-diff --git a/include/libxml/tree.h b/include/libxml/tree.h
-index 2f90717..4a9b3bc 100644
---- a/include/libxml/tree.h
-+++ b/include/libxml/tree.h
-@@ -76,7 +76,8 @@ typedef enum {
-     XML_BUFFER_ALLOC_EXACT,	/* grow only to the minimal size */
-     XML_BUFFER_ALLOC_IMMUTABLE, /* immutable buffer */
-     XML_BUFFER_ALLOC_IO,	/* special allocation scheme used for I/O */
--    XML_BUFFER_ALLOC_HYBRID	/* exact up to a threshold, and doubleit thereafter */
-+    XML_BUFFER_ALLOC_HYBRID,	/* exact up to a threshold, and doubleit thereafter */
-+    XML_BUFFER_ALLOC_BOUNDED	/* limit the upper size of the buffer */
- } xmlBufferAllocationScheme;
- 
- /**
-diff --git a/xmlreader.c b/xmlreader.c
-index f19e123..471e7e2 100644
---- a/xmlreader.c
-+++ b/xmlreader.c
-@@ -2091,6 +2091,9 @@ xmlNewTextReader(xmlParserInputBufferPtr input, const char *URI) {
- 		"xmlNewTextReader : malloc failed\n");
- 	return(NULL);
-     }
-+    /* no operation on a reader should require a huge buffer */
-+    xmlBufSetAllocationScheme(ret->buffer,
-+			      XML_BUFFER_ALLOC_BOUNDED);
-     ret->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler));
-     if (ret->sax == NULL) {
- 	xmlBufFree(ret->buffer);
-@@ -3616,6 +3619,7 @@ xmlTextReaderConstValue(xmlTextReaderPtr reader) {
- 	    return(((xmlNsPtr) node)->href);
-         case XML_ATTRIBUTE_NODE:{
- 	    xmlAttrPtr attr = (xmlAttrPtr) node;
-+	    const xmlChar *ret;
- 
- 	    if ((attr->children != NULL) &&
- 	        (attr->children->type == XML_TEXT_NODE) &&
-@@ -3629,10 +3633,21 @@ xmlTextReaderConstValue(xmlTextReaderPtr reader) {
-                                         "xmlTextReaderSetup : malloc failed\n");
-                         return (NULL);
-                     }
-+		    xmlBufSetAllocationScheme(reader->buffer,
-+		                              XML_BUFFER_ALLOC_BOUNDED);
-                 } else
-                     xmlBufEmpty(reader->buffer);
- 	        xmlBufGetNodeContent(reader->buffer, node);
--		return(xmlBufContent(reader->buffer));
-+		ret = xmlBufContent(reader->buffer);
-+		if (ret == NULL) {
-+		    /* error on the buffer best to reallocate */
-+		    xmlBufFree(reader->buffer);
-+		    reader->buffer = xmlBufCreateSize(100);
-+		    xmlBufSetAllocationScheme(reader->buffer,
-+		                              XML_BUFFER_ALLOC_BOUNDED);
-+		    ret = BAD_CAST "";
-+		}
-+		return(ret);
- 	    }
- 	    break;
- 	}
-@@ -5131,6 +5146,9 @@ xmlTextReaderSetup(xmlTextReaderPtr reader,
-                         "xmlTextReaderSetup : malloc failed\n");
-         return (-1);
-     }
-+    /* no operation on a reader should require a huge buffer */
-+    xmlBufSetAllocationScheme(reader->buffer,
-+			      XML_BUFFER_ALLOC_BOUNDED);
-     if (reader->sax == NULL)
- 	reader->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler));
-     if (reader->sax == NULL) {
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-CVE-2015-7941-pt1.patch b/gnu/packages/patches/libxml2-CVE-2015-7941-pt1.patch
deleted file mode 100644
index 4ca49039b2..0000000000
--- a/gnu/packages/patches/libxml2-CVE-2015-7941-pt1.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From a7dfab7411cbf545f359dd3157e5df1eb0e7ce31 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Mon, 23 Feb 2015 11:17:35 +0800
-Subject: [PATCH] Stop parsing on entities boundaries errors
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=744980
-
-There are times, like on unterminated entities that it's preferable to
-stop parsing, even if that means less error reporting. Entities are
-feeding the parser on further processing, and if they are ill defined
-then it's possible to get the parser to bug. Also do the same on
-Conditional Sections if the input is broken, as the structure of
-the document can't be guessed.
----
- parser.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/parser.c b/parser.c
-index a8d1b67..bbe97eb 100644
---- a/parser.c
-+++ b/parser.c
-@@ -5658,6 +5658,7 @@ xmlParseEntityDecl(xmlParserCtxtPtr ctxt) {
- 	if (RAW != '>') {
- 	    xmlFatalErrMsgStr(ctxt, XML_ERR_ENTITY_NOT_FINISHED,
- 	            "xmlParseEntityDecl: entity %s not terminated\n", name);
-+	    xmlStopParser(ctxt);
- 	} else {
- 	    if (input != ctxt->input) {
- 		xmlFatalErrMsg(ctxt, XML_ERR_ENTITY_BOUNDARY,
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-CVE-2015-7941-pt2.patch b/gnu/packages/patches/libxml2-CVE-2015-7941-pt2.patch
deleted file mode 100644
index 30563a46b6..0000000000
--- a/gnu/packages/patches/libxml2-CVE-2015-7941-pt2.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-From 9b8512337d14c8ddf662fcb98b0135f225a1c489 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Mon, 23 Feb 2015 11:29:20 +0800
-Subject: [PATCH] Cleanup conditional section error handling
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=744980
-
-The error handling of Conditional Section also need to be
-straightened as the structure of the document can't be
-guessed on a failure there and it's better to stop parsing
-as further errors are likely to be irrelevant.
----
- parser.c | 6 ++++++
- 1 file changed, 6 insertions(+)
-
-diff --git a/parser.c b/parser.c
-index bbe97eb..fe603ac 100644
---- a/parser.c
-+++ b/parser.c
-@@ -6770,6 +6770,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
- 	SKIP_BLANKS;
- 	if (RAW != '[') {
- 	    xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID, NULL);
-+	    xmlStopParser(ctxt);
-+	    return;
- 	} else {
- 	    if (ctxt->input->id != id) {
- 		xmlValidityError(ctxt, XML_ERR_ENTITY_BOUNDARY,
-@@ -6830,6 +6832,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
- 	SKIP_BLANKS;
- 	if (RAW != '[') {
- 	    xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID, NULL);
-+	    xmlStopParser(ctxt);
-+	    return;
- 	} else {
- 	    if (ctxt->input->id != id) {
- 		xmlValidityError(ctxt, XML_ERR_ENTITY_BOUNDARY,
-@@ -6885,6 +6889,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
- 
-     } else {
- 	xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID_KEYWORD, NULL);
-+	xmlStopParser(ctxt);
-+	return;
-     }
- 
-     if (RAW == 0)
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-CVE-2015-7942-pt1.patch b/gnu/packages/patches/libxml2-CVE-2015-7942-pt1.patch
deleted file mode 100644
index bd9077d7c4..0000000000
--- a/gnu/packages/patches/libxml2-CVE-2015-7942-pt1.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From bd0526e66a56e75a18da8c15c4750db8f801c52d Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Fri, 23 Oct 2015 19:02:28 +0800
-Subject: [PATCH] Another variation of overflow in Conditional sections
-
-Which happen after the previous fix to
-https://bugzilla.gnome.org/show_bug.cgi?id=756456
-
-But stopping the parser and exiting we didn't pop the intermediary entities
-and doing the SKIP there applies on an input which may be too small
----
- parser.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/parser.c b/parser.c
-index a65e4cc..b9217ff 100644
---- a/parser.c
-+++ b/parser.c
-@@ -6915,7 +6915,9 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
- 	"All markup of the conditional section is not in the same entity\n",
- 				 NULL, NULL);
- 	}
--        SKIP(3);
-+	if ((ctxt-> instate != XML_PARSER_EOF) &&
-+	    ((ctxt->input->cur + 3) < ctxt->input->end))
-+	    SKIP(3);
-     }
- }
- 
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-CVE-2015-7942-pt2.patch b/gnu/packages/patches/libxml2-CVE-2015-7942-pt2.patch
deleted file mode 100644
index 115d369ac3..0000000000
--- a/gnu/packages/patches/libxml2-CVE-2015-7942-pt2.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-From 41ac9049a27f52e7a1f3b341f8714149fc88d450 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Tue, 27 Oct 2015 10:53:44 +0800
-Subject: [PATCH] Fix an error in previous Conditional section patch
-
-an off by one mistake in the change, led to error on correct
-document where the end of the included entity was exactly
-the end of the conditional section, leading to regtest failure
----
- parser.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/parser.c b/parser.c
-index b9217ff..d67b300 100644
---- a/parser.c
-+++ b/parser.c
-@@ -6916,7 +6916,7 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
- 				 NULL, NULL);
- 	}
- 	if ((ctxt-> instate != XML_PARSER_EOF) &&
--	    ((ctxt->input->cur + 3) < ctxt->input->end))
-+	    ((ctxt->input->cur + 3) <= ctxt->input->end))
- 	    SKIP(3);
-     }
- }
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-CVE-2015-8035.patch b/gnu/packages/patches/libxml2-CVE-2015-8035.patch
deleted file mode 100644
index d29c96228e..0000000000
--- a/gnu/packages/patches/libxml2-CVE-2015-8035.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From f0709e3ca8f8947f2d91ed34e92e38a4c23eae63 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Tue, 3 Nov 2015 15:31:25 +0800
-Subject: [PATCH] CVE-2015-8035 Fix XZ compression support loop
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=757466
-DoS when parsing specially crafted XML document if XZ support
-is compiled in (which wasn't the case for 2.9.2 and master since
-Nov 2013, fixed in next commit !)
----
- xzlib.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/xzlib.c b/xzlib.c
-index 0dcb9f4..1fab546 100644
---- a/xzlib.c
-+++ b/xzlib.c
-@@ -581,6 +581,10 @@ xz_decomp(xz_statep state)
-             xz_error(state, LZMA_DATA_ERROR, "compressed data error");
-             return -1;
-         }
-+        if (ret == LZMA_PROG_ERROR) {
-+            xz_error(state, LZMA_PROG_ERROR, "compression error");
-+            return -1;
-+        }
-     } while (strm->avail_out && ret != LZMA_STREAM_END);
- 
-     /* update available output and crc check value */
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-737840.patch b/gnu/packages/patches/libxml2-bug-737840.patch
deleted file mode 100644
index 2a2d62c583..0000000000
--- a/gnu/packages/patches/libxml2-bug-737840.patch
+++ /dev/null
@@ -1,88 +0,0 @@
-From ef709ce2f7b792d5fb69ed142796d743fb1eb388 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Thu, 10 Sep 2015 19:41:41 +0800
-Subject: [PATCH] Fix the spurious ID already defined error
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=737840
-the fix for 724903 introduced a regression on external entities carrying
-IDs, revert that patch in part and add a specific test to avoid readding it
----
- result/valid/737840.xml         | 10 ++++++++++
- result/valid/737840.xml.err     |  0
- result/valid/737840.xml.err.rdr |  0
- test/valid/737840.xml           | 10 ++++++++++
- test/valid/dtds/737840.ent      |  1 +
- valid.c                         |  6 ++++--
- 6 files changed, 25 insertions(+), 2 deletions(-)
- create mode 100644 result/valid/737840.xml
- create mode 100644 result/valid/737840.xml.err
- create mode 100644 result/valid/737840.xml.err.rdr
- create mode 100644 test/valid/737840.xml
- create mode 100644 test/valid/dtds/737840.ent
-
-diff --git a/result/valid/737840.xml b/result/valid/737840.xml
-new file mode 100644
-index 0000000..433c6d6
---- /dev/null
-+++ b/result/valid/737840.xml
-@@ -0,0 +1,10 @@
-+<?xml version="1.0"?>
-+<!DOCTYPE root [
-+<!ELEMENT root (elem)>
-+<!ELEMENT elem (#PCDATA)>
-+<!ATTLIST elem id ID #IMPLIED>
-+<!ENTITY target SYSTEM "dtds/737840.ent">
-+]>
-+<root>
-+  &target;
-+</root>
-diff --git a/result/valid/737840.xml.err b/result/valid/737840.xml.err
-new file mode 100644
-index 0000000..e69de29
-diff --git a/result/valid/737840.xml.err.rdr b/result/valid/737840.xml.err.rdr
-new file mode 100644
-index 0000000..e69de29
-diff --git a/test/valid/737840.xml b/test/valid/737840.xml
-new file mode 100644
-index 0000000..2d27b73
---- /dev/null
-+++ b/test/valid/737840.xml
-@@ -0,0 +1,10 @@
-+<!DOCTYPE root [
-+<!ELEMENT root (elem)>
-+<!ELEMENT elem (#PCDATA)>
-+<!ATTLIST elem id ID #IMPLIED>
-+<!ENTITY target SYSTEM "dtds/737840.ent">
-+]>
-+
-+<root>
-+  &target;
-+</root>
-diff --git a/test/valid/dtds/737840.ent b/test/valid/dtds/737840.ent
-new file mode 100644
-index 0000000..e972132
---- /dev/null
-+++ b/test/valid/dtds/737840.ent
-@@ -0,0 +1 @@
-+<elem id="id0"/>
-\ No newline at end of file
-diff --git a/valid.c b/valid.c
-index 409aa81..45a3f70 100644
---- a/valid.c
-+++ b/valid.c
-@@ -2634,8 +2634,10 @@ xmlAddID(xmlValidCtxtPtr ctxt, xmlDocPtr doc, const xmlChar *value,
- 	/*
- 	 * The id is already defined in this DTD.
- 	 */
--	xmlErrValidNode(ctxt, attr->parent, XML_DTD_ID_REDEFINED,
--			"ID %s already defined\n", value, NULL, NULL);
-+	if (ctxt != NULL) {
-+	    xmlErrValidNode(ctxt, attr->parent, XML_DTD_ID_REDEFINED,
-+			    "ID %s already defined\n", value, NULL, NULL);
-+	}
- #endif /* LIBXML_VALID_ENABLED */
- 	xmlFreeID(ret);
- 	return(NULL);
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-738805.patch b/gnu/packages/patches/libxml2-bug-738805.patch
deleted file mode 100644
index 16163bb941..0000000000
--- a/gnu/packages/patches/libxml2-bug-738805.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From 72a46a519ce7326d9a00f0b6a7f2a8e958cd1675 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Thu, 23 Oct 2014 11:35:36 +0800
-Subject: [PATCH] Fix missing entities after CVE-2014-3660 fix
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=738805
-
-The fix for CVE-2014-3660 introduced a regression in some case
-where entity substitution is required and the entity is used
-first in anotther entity referenced from an attribute value
----
- parser.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/parser.c b/parser.c
-index 67c9dfd..a8d1b67 100644
---- a/parser.c
-+++ b/parser.c
-@@ -7235,7 +7235,8 @@ xmlParseReference(xmlParserCtxtPtr ctxt) {
-      * far more secure as the parser will only process data coming from
-      * the document entity by default.
-      */
--    if ((ent->checked == 0) &&
-+    if (((ent->checked == 0) ||
-+         ((ent->children == NULL) && (ctxt->options & XML_PARSE_NOENT))) &&
-         ((ent->etype != XML_EXTERNAL_GENERAL_PARSED_ENTITY) ||
-          (ctxt->options & (XML_PARSE_NOENT | XML_PARSE_DTDVALID)))) {
- 	unsigned long oldnbent = ctxt->nbentities;
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-746048.patch b/gnu/packages/patches/libxml2-bug-746048.patch
deleted file mode 100644
index 450b8d3ab3..0000000000
--- a/gnu/packages/patches/libxml2-bug-746048.patch
+++ /dev/null
@@ -1,65 +0,0 @@
-From e724879d964d774df9b7969fc846605aa1bac54c Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Fri, 30 Oct 2015 21:14:55 +0800
-Subject: [PATCH] Fix parsing short unclosed comment uninitialized access
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=746048
-The HTML parser was too optimistic when processing comments and
-didn't check for the end of the stream on the first 2 characters
----
- HTMLparser.c | 21 ++++++++++++++-------
- 1 file changed, 14 insertions(+), 7 deletions(-)
-
-diff --git a/HTMLparser.c b/HTMLparser.c
-index 19c10c3..bdf7807 100644
---- a/HTMLparser.c
-+++ b/HTMLparser.c
-@@ -3264,12 +3264,17 @@ htmlParseComment(htmlParserCtxtPtr ctxt) {
- 	ctxt->instate = state;
- 	return;
-     }
-+    len = 0;
-+    buf[len] = 0;
-     q = CUR_CHAR(ql);
-+    if (!IS_CHAR(q))
-+        goto unfinished;
-     NEXTL(ql);
-     r = CUR_CHAR(rl);
-+    if (!IS_CHAR(r))
-+        goto unfinished;
-     NEXTL(rl);
-     cur = CUR_CHAR(l);
--    len = 0;
-     while (IS_CHAR(cur) &&
-            ((cur != '>') ||
- 	    (r != '-') || (q != '-'))) {
-@@ -3300,18 +3305,20 @@ htmlParseComment(htmlParserCtxtPtr ctxt) {
- 	}
-     }
-     buf[len] = 0;
--    if (!IS_CHAR(cur)) {
--	htmlParseErr(ctxt, XML_ERR_COMMENT_NOT_FINISHED,
--	             "Comment not terminated \n<!--%.50s\n", buf, NULL);
--	xmlFree(buf);
--    } else {
-+    if (IS_CHAR(cur)) {
-         NEXT;
- 	if ((ctxt->sax != NULL) && (ctxt->sax->comment != NULL) &&
- 	    (!ctxt->disableSAX))
- 	    ctxt->sax->comment(ctxt->userData, buf);
- 	xmlFree(buf);
-+	ctxt->instate = state;
-+	return;
-     }
--    ctxt->instate = state;
-+
-+unfinished:
-+    htmlParseErr(ctxt, XML_ERR_COMMENT_NOT_FINISHED,
-+		 "Comment not terminated \n<!--%.50s\n", buf, NULL);
-+    xmlFree(buf);
- }
- 
- /**
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-747437.patch b/gnu/packages/patches/libxml2-bug-747437.patch
deleted file mode 100644
index ea2ef0ff53..0000000000
--- a/gnu/packages/patches/libxml2-bug-747437.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-From 8985cde70901c62d3f0f04da225e73b7344a52d7 Mon Sep 17 00:00:00 2001
-From: Martin von Gagern <Martin.vGagern@gmx.net>
-Date: Mon, 13 Apr 2015 16:32:14 +0800
-Subject: [PATCH] xmlMemUsed is not thread-safe
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=747437
-just use the mutex to protect access to those variables
----
- xmlmemory.c | 14 ++++++++++++--
- 1 file changed, 12 insertions(+), 2 deletions(-)
-
-diff --git a/xmlmemory.c b/xmlmemory.c
-index a3dc737..f24fd6d 100644
---- a/xmlmemory.c
-+++ b/xmlmemory.c
-@@ -554,7 +554,12 @@ xmlMemoryStrdup(const char *str) {
- 
- int
- xmlMemUsed(void) {
--     return(debugMemSize);
-+    int res;
-+
-+    xmlMutexLock(xmlMemMutex);
-+    res = debugMemSize;
-+    xmlMutexUnlock(xmlMemMutex);
-+    return(res);
- }
- 
- /**
-@@ -567,7 +572,12 @@ xmlMemUsed(void) {
- 
- int
- xmlMemBlocks(void) {
--     return(debugMemBlocks);
-+    int res;
-+
-+    xmlMutexLock(xmlMemMutex);
-+    res = debugMemBlocks;
-+    xmlMutexUnlock(xmlMemMutex);
-+    return(res);
- }
- 
- #ifdef MEM_LIST
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-751603.patch b/gnu/packages/patches/libxml2-bug-751603.patch
deleted file mode 100644
index f27767f6b5..0000000000
--- a/gnu/packages/patches/libxml2-bug-751603.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 9aa37588ee78a06ca1379a9d9356eab16686099c Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Mon, 29 Jun 2015 09:08:25 +0800
-Subject: [PATCH] Do not process encoding values if the declaration if broken
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=751603
-
-If the string is not properly terminated do not try to convert
-to the given encoding.
----
- parser.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/parser.c b/parser.c
-index fe603ac..a3a9568 100644
---- a/parser.c
-+++ b/parser.c
-@@ -10404,6 +10404,8 @@ xmlParseEncodingDecl(xmlParserCtxtPtr ctxt) {
- 	    encoding = xmlParseEncName(ctxt);
- 	    if (RAW != '"') {
- 		xmlFatalErr(ctxt, XML_ERR_STRING_NOT_CLOSED, NULL);
-+		xmlFree((xmlChar *) encoding);
-+		return(NULL);
- 	    } else
- 	        NEXT;
- 	} else if (RAW == '\''){
-@@ -10411,6 +10413,8 @@ xmlParseEncodingDecl(xmlParserCtxtPtr ctxt) {
- 	    encoding = xmlParseEncName(ctxt);
- 	    if (RAW != '\'') {
- 		xmlFatalErr(ctxt, XML_ERR_STRING_NOT_CLOSED, NULL);
-+		xmlFree((xmlChar *) encoding);
-+		return(NULL);
- 	    } else
- 	        NEXT;
- 	} else {
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-751631.patch b/gnu/packages/patches/libxml2-bug-751631.patch
deleted file mode 100644
index 33344e35d2..0000000000
--- a/gnu/packages/patches/libxml2-bug-751631.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From 709a952110e98621c9b78c4f26462a9d8333102e Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Mon, 29 Jun 2015 16:10:26 +0800
-Subject: [PATCH] Fail parsing early on if encoding conversion failed
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=751631
-
-If we fail conversing the current input stream while
-processing the encoding declaration of the XMLDecl
-then it's safer to just abort there and not try to
-report further errors.
----
- parser.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
-diff --git a/parser.c b/parser.c
-index a3a9568..0edd53b 100644
---- a/parser.c
-+++ b/parser.c
-@@ -10471,7 +10471,11 @@ xmlParseEncodingDecl(xmlParserCtxtPtr ctxt) {
- 
-             handler = xmlFindCharEncodingHandler((const char *) encoding);
- 	    if (handler != NULL) {
--		xmlSwitchToEncoding(ctxt, handler);
-+		if (xmlSwitchToEncoding(ctxt, handler) < 0) {
-+		    /* failed to convert */
-+		    ctxt->errNo = XML_ERR_UNSUPPORTED_ENCODING;
-+		    return(NULL);
-+		}
- 	    } else {
- 		xmlFatalErrMsgStr(ctxt, XML_ERR_UNSUPPORTED_ENCODING,
- 			"Unsupported encoding %s\n", encoding);
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-754946.patch b/gnu/packages/patches/libxml2-bug-754946.patch
deleted file mode 100644
index 3b9223efe5..0000000000
--- a/gnu/packages/patches/libxml2-bug-754946.patch
+++ /dev/null
@@ -1,132 +0,0 @@
-From 51f02b0a03ea1fa6c65b3f9fd88cf60fb5803783 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Tue, 15 Sep 2015 16:50:32 +0800
-Subject: [PATCH] Fix a bug on name parsing at the end of current input buffer
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=754946
-
-When hitting the end of the current input buffer while parsing
-a name we could end up loosing the beginning of the name, which
-led to various issues.
----
- parser.c                     | 29 ++++++++++++++++++++---------
- result/errors/754946.xml     |  0
- result/errors/754946.xml.err | 16 ++++++++++++++++
- result/errors/754946.xml.str |  4 ++++
- test/errors/754946.xml       |  1 +
- 5 files changed, 41 insertions(+), 9 deletions(-)
- create mode 100644 result/errors/754946.xml
- create mode 100644 result/errors/754946.xml.err
- create mode 100644 result/errors/754946.xml.str
- create mode 100644 test/errors/754946.xml
-
-diff --git a/parser.c b/parser.c
-index 0edd53b..fd29a39 100644
---- a/parser.c
-+++ b/parser.c
-@@ -3491,7 +3491,14 @@ xmlParseNCNameComplex(xmlParserCtxtPtr ctxt) {
- 	c = CUR_CHAR(l);
- 	if (c == 0) {
- 	    count = 0;
-+	    /*
-+	     * when shrinking to extend the buffer we really need to preserve
-+	     * the part of the name we already parsed. Hence rolling back
-+	     * by current lenght.
-+	     */
-+	    ctxt->input->cur -= l;
- 	    GROW;
-+	    ctxt->input->cur += l;
-             if (ctxt->instate == XML_PARSER_EOF)
-                 return(NULL);
- 	    end = ctxt->input->cur;
-@@ -3523,7 +3530,7 @@ xmlParseNCNameComplex(xmlParserCtxtPtr ctxt) {
- 
- static const xmlChar *
- xmlParseNCName(xmlParserCtxtPtr ctxt) {
--    const xmlChar *in;
-+    const xmlChar *in, *e;
-     const xmlChar *ret;
-     int count = 0;
- 
-@@ -3535,16 +3542,19 @@ xmlParseNCName(xmlParserCtxtPtr ctxt) {
-      * Accelerator for simple ASCII names
-      */
-     in = ctxt->input->cur;
--    if (((*in >= 0x61) && (*in <= 0x7A)) ||
--	((*in >= 0x41) && (*in <= 0x5A)) ||
--	(*in == '_')) {
-+    e = ctxt->input->end;
-+    if ((((*in >= 0x61) && (*in <= 0x7A)) ||
-+	 ((*in >= 0x41) && (*in <= 0x5A)) ||
-+	 (*in == '_')) && (in < e)) {
- 	in++;
--	while (((*in >= 0x61) && (*in <= 0x7A)) ||
--	       ((*in >= 0x41) && (*in <= 0x5A)) ||
--	       ((*in >= 0x30) && (*in <= 0x39)) ||
--	       (*in == '_') || (*in == '-') ||
--	       (*in == '.'))
-+	while ((((*in >= 0x61) && (*in <= 0x7A)) ||
-+	        ((*in >= 0x41) && (*in <= 0x5A)) ||
-+	        ((*in >= 0x30) && (*in <= 0x39)) ||
-+	        (*in == '_') || (*in == '-') ||
-+	        (*in == '.')) && (in < e))
- 	    in++;
-+	if (in >= e)
-+	    goto complex;
- 	if ((*in > 0) && (*in < 0x80)) {
- 	    count = in - ctxt->input->cur;
-             if ((count > XML_MAX_NAME_LENGTH) &&
-@@ -3562,6 +3572,7 @@ xmlParseNCName(xmlParserCtxtPtr ctxt) {
- 	    return(ret);
- 	}
-     }
-+complex:
-     return(xmlParseNCNameComplex(ctxt));
- }
- 
-diff --git a/result/errors/754946.xml b/result/errors/754946.xml
-new file mode 100644
-index 0000000..e69de29
-diff --git a/result/errors/754946.xml.err b/result/errors/754946.xml.err
-new file mode 100644
-index 0000000..423dff5
---- /dev/null
-+++ b/result/errors/754946.xml.err
-@@ -0,0 +1,16 @@
-+Entity: line 1: parser error : internal error: xmlParseInternalSubset: error detected in Markup declaration
-+
-+ %SYSTEM; 
-+         ^
-+Entity: line 1: 
-+A<lbbbbbbbbbbbbbbbbbbb_
-+^
-+Entity: line 1: parser error : DOCTYPE improperly terminated
-+ %SYSTEM; 
-+         ^
-+Entity: line 1: 
-+A<lbbbbbbbbbbbbbbbbbbb_
-+^
-+./test/errors/754946.xml:1: parser error : Extra content at the end of the document
-+<!DOCTYPEA[<!ENTITY %
-+  ^
-diff --git a/result/errors/754946.xml.str b/result/errors/754946.xml.str
-new file mode 100644
-index 0000000..3b748cc
---- /dev/null
-+++ b/result/errors/754946.xml.str
-@@ -0,0 +1,4 @@
-+./test/errors/754946.xml:1: parser error : Extra content at the end of the document
-+<!DOCTYPEA[<!ENTITY %
-+          ^
-+./test/errors/754946.xml : failed to parse
-diff --git a/test/errors/754946.xml b/test/errors/754946.xml
-new file mode 100644
-index 0000000..6b5f9b0
---- /dev/null
-+++ b/test/errors/754946.xml
-@@ -0,0 +1 @@
-+<!DOCTYPEA[<!ENTITY %

SYSTEM "A<lbbbbbbbbbbbbbbbbbbb_"
>%SYSTEM;<![
-\ No newline at end of file
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-754947.patch b/gnu/packages/patches/libxml2-bug-754947.patch
deleted file mode 100644
index 5edbc5fcc1..0000000000
--- a/gnu/packages/patches/libxml2-bug-754947.patch
+++ /dev/null
@@ -1,103 +0,0 @@
-From 4a5d80aded1da94cd55294e7207109712201b75b Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Fri, 18 Sep 2015 15:06:46 +0800
-Subject: [PATCH] Fix a bug in CData error handling in the push parser
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=754947
-
-The checking function was returning incorrect args in some cases
-Adds the test to teh reg suite and fix one of the existing test output
----
- parser.c                     | 6 +++---
- result/errors/754947.xml     | 0
- result/errors/754947.xml.err | 7 +++++++
- result/errors/754947.xml.str | 5 +++++
- result/errors/cdata.xml.str  | 4 ++--
- test/errors/754947.xml       | 1 +
- 6 files changed, 18 insertions(+), 5 deletions(-)
- create mode 100644 result/errors/754947.xml
- create mode 100644 result/errors/754947.xml.err
- create mode 100644 result/errors/754947.xml.str
- create mode 100644 test/errors/754947.xml
-
-diff --git a/parser.c b/parser.c
-index fd29a39..f1724a9 100644
---- a/parser.c
-+++ b/parser.c
-@@ -11192,7 +11192,7 @@ xmlCheckCdataPush(const xmlChar *utf, int len) {
- 	    else
- 	        return(-ix);
- 	} else if ((c & 0xe0) == 0xc0) {/* 2-byte code, starts with 110 */
--	    if (ix + 2 > len) return(ix);
-+	    if (ix + 2 > len) return(-ix);
- 	    if ((utf[ix+1] & 0xc0 ) != 0x80)
- 	        return(-ix);
- 	    codepoint = (utf[ix] & 0x1f) << 6;
-@@ -11201,7 +11201,7 @@ xmlCheckCdataPush(const xmlChar *utf, int len) {
- 	        return(-ix);
- 	    ix += 2;
- 	} else if ((c & 0xf0) == 0xe0) {/* 3-byte code, starts with 1110 */
--	    if (ix + 3 > len) return(ix);
-+	    if (ix + 3 > len) return(-ix);
- 	    if (((utf[ix+1] & 0xc0) != 0x80) ||
- 	        ((utf[ix+2] & 0xc0) != 0x80))
- 		    return(-ix);
-@@ -11212,7 +11212,7 @@ xmlCheckCdataPush(const xmlChar *utf, int len) {
- 	        return(-ix);
- 	    ix += 3;
- 	} else if ((c & 0xf8) == 0xf0) {/* 4-byte code, starts with 11110 */
--	    if (ix + 4 > len) return(ix);
-+	    if (ix + 4 > len) return(-ix);
- 	    if (((utf[ix+1] & 0xc0) != 0x80) ||
- 	        ((utf[ix+2] & 0xc0) != 0x80) ||
- 		((utf[ix+3] & 0xc0) != 0x80))
-diff --git a/result/errors/754947.xml b/result/errors/754947.xml
-new file mode 100644
-index 0000000..e69de29
-diff --git a/result/errors/754947.xml.err b/result/errors/754947.xml.err
-new file mode 100644
-index 0000000..f45cb5a
---- /dev/null
-+++ b/result/errors/754947.xml.err
-@@ -0,0 +1,7 @@
-+./test/errors/754947.xml:1: parser error : Input is not proper UTF-8, indicate encoding !
-+Bytes: 0xEE 0x5D 0x5D 0x3E
-+<d><![CDATA[0000000000000î]]>
-+                         ^
-+./test/errors/754947.xml:1: parser error : Premature end of data in tag d line 1
-+<d><![CDATA[0000000000000î]]>
-+                             ^
-diff --git a/result/errors/754947.xml.str b/result/errors/754947.xml.str
-new file mode 100644
-index 0000000..4d2f52e
---- /dev/null
-+++ b/result/errors/754947.xml.str
-@@ -0,0 +1,5 @@
-+./test/errors/754947.xml:1: parser error : Input is not proper UTF-8, indicate encoding !
-+Bytes: 0xEE 0x5D 0x5D 0x3E
-+<d><![CDATA[0000000000000î]]>
-+                         ^
-+./test/errors/754947.xml : failed to parse
-diff --git a/result/errors/cdata.xml.str b/result/errors/cdata.xml.str
-index e043441..cf83d2b 100644
---- a/result/errors/cdata.xml.str
-+++ b/result/errors/cdata.xml.str
-@@ -1,5 +1,5 @@
- ./test/errors/cdata.xml:2: parser error : Input is not proper UTF-8, indicate encoding !
--Bytes: 0x5B 0x43 0xE1 0x72
-+Bytes: 0xE1 0x72 0x5D 0x5D
- <A><![CDATA[Cár]]></A>
--           ^
-+             ^
- ./test/errors/cdata.xml : failed to parse
-diff --git a/test/errors/754947.xml b/test/errors/754947.xml
-new file mode 100644
-index 0000000..bd9997e
---- /dev/null
-+++ b/test/errors/754947.xml
-@@ -0,0 +1 @@
-+<d><![CDATA[0000000000000î]]>
-\ No newline at end of file
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-bug-755857.patch b/gnu/packages/patches/libxml2-bug-755857.patch
deleted file mode 100644
index 3f1efd3806..0000000000
--- a/gnu/packages/patches/libxml2-bug-755857.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-From cf77e60515045bdd66f2c59c69a06e603b470eae Mon Sep 17 00:00:00 2001
-From: Gaurav Gupta <g.gupta@samsung.com>
-Date: Wed, 30 Sep 2015 14:46:29 +0200
-Subject: [PATCH] Add missing Null check in xmlParseExternalEntityPrivate
-
-For https://bugzilla.gnome.org/show_bug.cgi?id=755857
-
-a case where we check for NULL but not everywhere
----
- parser.c | 10 ++++++----
- 1 file changed, 6 insertions(+), 4 deletions(-)
-
-diff --git a/parser.c b/parser.c
-index f1724a9..a65e4cc 100644
---- a/parser.c
-+++ b/parser.c
-@@ -13367,7 +13367,7 @@ xmlParseExternalEntityPrivate(xmlDocPtr doc, xmlParserCtxtPtr oldctxt,
-     /*
-      * Also record the size of the entity parsed
-      */
--    if (ctxt->input != NULL) {
-+    if (ctxt->input != NULL && oldctxt != NULL) {
- 	oldctxt->sizeentities += ctxt->input->consumed;
- 	oldctxt->sizeentities += (ctxt->input->cur - ctxt->input->base);
-     }
-@@ -13379,9 +13379,11 @@ xmlParseExternalEntityPrivate(xmlDocPtr doc, xmlParserCtxtPtr oldctxt,
- 
-     if (sax != NULL)
- 	ctxt->sax = oldsax;
--    oldctxt->node_seq.maximum = ctxt->node_seq.maximum;
--    oldctxt->node_seq.length = ctxt->node_seq.length;
--    oldctxt->node_seq.buffer = ctxt->node_seq.buffer;
-+    if (oldctxt != NULL) {
-+        oldctxt->node_seq.maximum = ctxt->node_seq.maximum;
-+        oldctxt->node_seq.length = ctxt->node_seq.length;
-+        oldctxt->node_seq.buffer = ctxt->node_seq.buffer;
-+    }
-     ctxt->node_seq.maximum = 0;
-     ctxt->node_seq.length = 0;
-     ctxt->node_seq.buffer = NULL;
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-fix-catalog-corruption.patch b/gnu/packages/patches/libxml2-fix-catalog-corruption.patch
deleted file mode 100644
index b75ee300d3..0000000000
--- a/gnu/packages/patches/libxml2-fix-catalog-corruption.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-From f65128f38289d77ff322d63aef2858cc0a819c34 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Fri, 17 Oct 2014 17:13:41 +0800
-Subject: [PATCH] Revert "Missing initialization for the catalog module"
-
-This reverts commit 054c716ea1bf001544127a4ab4f4346d1b9947e7.
-As this break xmlcatalog command
-https://bugzilla.redhat.com/show_bug.cgi?id=1153753
----
- parser.c | 3 ---
- 1 file changed, 3 deletions(-)
-
-diff --git a/parser.c b/parser.c
-index 1d93967..67c9dfd 100644
---- a/parser.c
-+++ b/parser.c
-@@ -14830,9 +14830,6 @@ xmlInitParser(void) {
- #ifdef LIBXML_XPATH_ENABLED
- 	xmlXPathInit();
- #endif
--#ifdef LIBXML_CATALOG_ENABLED
--        xmlInitializeCatalog();
--#endif
- 	xmlParserInitialized = 1;
- #ifdef LIBXML_THREAD_ENABLED
-     }
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-id-attrs-in-xmlSetTreeDoc.patch b/gnu/packages/patches/libxml2-id-attrs-in-xmlSetTreeDoc.patch
deleted file mode 100644
index a87f79bf84..0000000000
--- a/gnu/packages/patches/libxml2-id-attrs-in-xmlSetTreeDoc.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From f54d6a929af2a570396f0595a0e29064c908c12e Mon Sep 17 00:00:00 2001
-From: Nick Wellnhofer <wellnhofer@aevum.de>
-Date: Fri, 19 Dec 2014 00:08:35 +0100
-Subject: [PATCH] Account for ID attributes in xmlSetTreeDoc
-
----
- tree.c | 11 +++++++++++
- 1 file changed, 11 insertions(+)
-
-diff --git a/tree.c b/tree.c
-index 6ec9223..c6323b4 100644
---- a/tree.c
-+++ b/tree.c
-@@ -2799,8 +2799,19 @@ xmlSetTreeDoc(xmlNodePtr tree, xmlDocPtr doc) {
- 	if(tree->type == XML_ELEMENT_NODE) {
- 	    prop = tree->properties;
- 	    while (prop != NULL) {
-+                if (prop->atype == XML_ATTRIBUTE_ID) {
-+                    xmlRemoveID(tree->doc, prop);
-+                }
-+
- 		prop->doc = doc;
- 		xmlSetListDoc(prop->children, doc);
-+
-+                if (xmlIsID(doc, tree, prop)) {
-+                    xmlChar *idVal = xmlNodeListGetString(doc, prop->children,
-+                                                          1);
-+                    xmlAddID(NULL, doc, idVal, prop);
-+                }
-+
- 		prop = prop->next;
- 	    }
- 	}
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-node-sort-order-pt1.patch b/gnu/packages/patches/libxml2-node-sort-order-pt1.patch
deleted file mode 100644
index 181a0727ec..0000000000
--- a/gnu/packages/patches/libxml2-node-sort-order-pt1.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-From ba58f23c60862f2158b457f4d30031761bf4dde1 Mon Sep 17 00:00:00 2001
-From: Nick Wellnhofer <wellnhofer@aevum.de>
-Date: Sun, 8 Mar 2015 16:44:11 +0100
-Subject: [PATCH] Fix order of root nodes
-
-Make sure root nodes are sorted before other nodes.
----
- xpath.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/xpath.c b/xpath.c
-index ffd2a48..e9f5bf9 100644
---- a/xpath.c
-+++ b/xpath.c
-@@ -361,13 +361,13 @@ turtle_comparison:
-     /*
-      * compute depth to root
-      */
--    for (depth2 = 0, cur = node2;cur->parent != NULL;cur = cur->parent) {
-+    for (depth2 = 0, cur = node2; cur != NULL; cur = cur->parent) {
- 	if (cur == node1)
- 	    return(1);
- 	depth2++;
-     }
-     root = cur;
--    for (depth1 = 0, cur = node1;cur->parent != NULL;cur = cur->parent) {
-+    for (depth1 = 0, cur = node1; cur != NULL; cur = cur->parent) {
- 	if (cur == node2)
- 	    return(-1);
- 	depth1++;
--- 
-2.6.3
-
diff --git a/gnu/packages/patches/libxml2-node-sort-order-pt2.patch b/gnu/packages/patches/libxml2-node-sort-order-pt2.patch
deleted file mode 100644
index d0077137fb..0000000000
--- a/gnu/packages/patches/libxml2-node-sort-order-pt2.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-From 3eaedba1b64180668fdab7ad2eba549586017bf3 Mon Sep 17 00:00:00 2001
-From: Nick Wellnhofer <wellnhofer@aevum.de>
-Date: Sat, 11 Jul 2015 14:27:34 +0200
-Subject: [PATCH] Fix previous change to node sort order
-
-Commit ba58f23 broke comparison of nodes from different documents.
-Thanks to Olli Pottonen for the report.
----
- xpath.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/xpath.c b/xpath.c
-index e9f5bf9..935fcff 100644
---- a/xpath.c
-+++ b/xpath.c
-@@ -361,14 +361,14 @@ turtle_comparison:
-     /*
-      * compute depth to root
-      */
--    for (depth2 = 0, cur = node2; cur != NULL; cur = cur->parent) {
--	if (cur == node1)
-+    for (depth2 = 0, cur = node2; cur->parent != NULL; cur = cur->parent) {
-+	if (cur->parent == node1)
- 	    return(1);
- 	depth2++;
-     }
-     root = cur;
--    for (depth1 = 0, cur = node1; cur != NULL; cur = cur->parent) {
--	if (cur == node2)
-+    for (depth1 = 0, cur = node1; cur->parent != NULL; cur = cur->parent) {
-+	if (cur->parent == node2)
- 	    return(-1);
- 	depth1++;
-     }
--- 
-2.6.3
-
diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index 6f0c4fce7e..4e76cbc3c8 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -64,35 +64,14 @@ things the parser might find in the XML document (like start tags).")
 (define-public libxml2
   (package
     (name "libxml2")
-    (version "2.9.2")
+    (version "2.9.3")
     (source (origin
              (method url-fetch)
              (uri (string-append "ftp://xmlsoft.org/libxml2/libxml2-"
                                  version ".tar.gz"))
              (sha256
               (base32
-               "1g6mf03xcabmk5ing1lwqmasr803616gb2xhn7pll10x2l5w6y2i"))
-             (patches
-              (map search-patch
-                   '("libxml2-fix-catalog-corruption.patch"
-                     "libxml2-bug-738805.patch"
-                     "libxml2-id-attrs-in-xmlSetTreeDoc.patch"
-                     "libxml2-CVE-2015-7941-pt1.patch"
-                     "libxml2-CVE-2015-7941-pt2.patch"
-                     "libxml2-node-sort-order-pt1.patch"
-                     "libxml2-bug-747437.patch"
-                     "libxml2-CVE-2015-1819.patch"
-                     "libxml2-bug-751603.patch"
-                     "libxml2-bug-751631.patch"
-                     "libxml2-node-sort-order-pt2.patch"
-                     "libxml2-bug-737840.patch"
-                     "libxml2-bug-754946.patch"
-                     "libxml2-bug-754947.patch"
-                     "libxml2-bug-755857.patch"
-                     "libxml2-CVE-2015-7942-pt1.patch"
-                     "libxml2-CVE-2015-7942-pt2.patch"
-                     "libxml2-bug-746048.patch"
-                     "libxml2-CVE-2015-8035.patch")))))
+               "0bd17g6znn2r98gzpjppsqjg33iraky4px923j3k8kdl8qgy7sad"))))
     (build-system gnu-build-system)
     (home-page "http://www.xmlsoft.org/")
     (synopsis "C parser for XML")