libxml2: add patch to fix 2 regressions introduced in 2.9.2 (via NetBSD).

- catalog initialization problem
- problem with entity expansion

srcpkgs/libxml2/patches/2.9.2-regressions.patch

@@ -0,0 +1,27 @@
+$NetBSD: patch-ba,v 1.3 2014/10/28 18:55:56 drochner Exp $
+
+https://git.gnome.org/browse/libxml2/commit/?id=f65128f38289d77ff322d63aef2858cc0a819c34
+https://git.gnome.org/browse/libxml2/commit/?id=72a46a519ce7326d9a00f0b6a7f2a8e958cd1675
+
+--- parser.c.orig	2014-10-16 05:57:40.000000000 +0000
++++ 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;
+@@ -14830,9 +14831,6 @@ xmlInitParser(void) {
+ #ifdef LIBXML_XPATH_ENABLED
+ 	xmlXPathInit();
+ #endif
+-#ifdef LIBXML_CATALOG_ENABLED
+-        xmlInitializeCatalog();
+-#endif
+ 	xmlParserInitialized = 1;
+ #ifdef LIBXML_THREAD_ENABLED
+     }

srcpkgs/libxml2/template

@@ -1,7 +1,7 @@
 # Template build file for 'libxml2'.
 pkgname=libxml2
 version=2.9.2
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--disable-static --with-threads --with-history"
 hostmakedepends="automake libtool gettext-devel pkg-config python-devel"